☆ 4.5 Review

Tetraquarks and Pentaquarks from Quark Model Perspective

SYMMETRY-BASEL (2023)

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The production of singly charmed pentaquark c over bar qqqq\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\bar{c}} q qqq$$\end{document} from bottom baryon

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Tcc+ and its partners

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Prediction of new Tcc states of D* D* and DsD molecular nature

L. R. Dai et al.

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Subleading contributions to the decay width of the Tcc+ tetraquark

Mao-Jun Yan et al.

Summary: The LHCb Collaboration has recently announced the discovery of the T-cc(+) tetraquark, which is only a few hundred keV below the D*+D-0 threshold. It is expected to have a molecular component, and theoretical predictions can be made accurately due to the separation of scales. The important decay channels include D+D-0 pi(0), (DD0)-D-0 pi(+), and D+D-0 gamma. The mass and width of the T-cc(+) tetraquark depend on the resonance profile due to its closeness to threshold.

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Mass behavior of hidden-charm open-strange pentaquarks inspired by the established Pc molecular states

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Masses of fully heavy tetraquark states from a four-quark static potential model

Z. Asadi et al.

Summary: In this article, we studied the ground-state mass of full-heavy tetraquarks cc (c) over bar(c) over bar and bb (b) over bar(b) over bar by solving the nonrelativistic four-body systems. We applied the flux-tube configurations, the tetraquark four-body potential butterfly, and the dimeson potential flip-flop of SU(3) lattice quantum chromodynamics to describe the tetraquark interaction. Our numerical analysis showed that the disconnected and connected static potentials can predict the mass of tetraquarks very close to experimental data.

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R. M. Albuquerque et al.

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G. Barucca et al.

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Strong decays of the hadronic molecule Ω*(2012)

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Mass-spectroscopy of [bb][(b)over-bar(b)over-bar] and [bq][(b)over-bar(q)over-bar] tetraquark states in a diquark-antidiquark formalism

Rohit Tiwari et al.

Summary: In this article, a non-relativistic potential model is utilized to calculate the mass-spectra of bottom and heavy-light bottom tetraquark states. The four-body problem is simplified into a two-body problem using a diquark-antidiquark approximation, and the Schrodinger equation is solved numerically with a Cornell-inspired potential and relativistic correction term. Various spin-dependent terms are used to describe the splitting structure of the tetraquark spectrum. The calculated masses of bottom mesons, diquarks, and tetraquarks fall within specific energy ranges, and the Z(b)(10610) and Z(b)(10650) states are found to be below certain thresholds in the current model.

EUROPEAN PHYSICAL JOURNAL A (2021)

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Article Physics, Particles & Fields

The explanation of some exotic states in the cs(c)over-bar(s)over-bar tetraquark system

Xuejie Liu et al.

Summary: This study systematically investigates different structures and channel couplings of tetraquark systems, proposing hypotheses to explain exotic resonance states. Experimental tests are expected to verify these hypotheses.

EUROPEAN PHYSICAL JOURNAL C (2021)

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Article Astronomy & Astrophysics

On the mechanism of T4c(6900) tetraquark production

Rafal Maciula et al.

Summary: The study discusses the production mechanism of a putative fully charm tetraquark observed by LHCb recently, considering both single parton scattering (SPS) and double parton scattering (DPS) mechanisms. Calculations show that the contribution of DPS is almost two orders of magnitude larger than SPS, but the tetraquark formation mechanism remains unknown. The preferred spin scenario is 0(+) over 0(-) based on comparison with LHCb preliminary data.

PHYSICS LETTERS B (2021)

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Review Physics, Nuclear

The islands of shape coexistence within the Elliott and the proxy-SU(3) Models

Andriana Martinou et al.

Summary: A novel dual-shell mechanism has been proposed to explain the phenomenon of shape coexistence in nuclei within the Elliott SU(3) and proxy-SU(3) symmetries; the study suggests that shape coexistence may occur in specific regions on the nuclear map, with nuclei in certain ranges of proton or neutron numbers being potential candidates for shape coexistence.

EUROPEAN PHYSICAL JOURNAL A (2021)

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Article Physics, Particles & Fields

Strong decays of the newly Pcs(4459) as a strange hidden-charm Ξc(D)over-bar* molecule

Rui Chen

Summary: The study further examines the two-body strong decay behavior of P-cs(4459) in the meson-baryon molecular scenario and supports its identity as a strange hidden-charm Xi D-c* molecule. The relative decay ratio between Λ D-c(s)* and J/psi Λ is around 10, with a partial decay width for the Λ D-c(s)* channel ranging from 0.6 to 2.0 MeV.

EUROPEAN PHYSICAL JOURNAL C (2021)

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Article Physics, Nuclear

Analysis of the Pcs(4459) as the hidden-charm pentaquark state with QCD sum rules

Zhi-Gang Wang

Summary: In this paper, the authors studied the udssc pentaquark state using QCD sum rules and found that the predicted mass is in agreement with experimental data, supporting the assignment of Pcs(4459) as the hidden-charm pentaquark state with specific spin-parity. The flavor SU(3) mass-breaking effect was taken into account in estimating the mass spectrum of diquark-diquark-antiquark-type udscc pentaquark states with strangeness S = -1.

INTERNATIONAL JOURNAL OF MODERN PHYSICS A (2021)

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Article Physics, Nuclear

Revisit the tetraquark candidates in the J/ψJ/ψ mass spectrum

Zhi-Gang Wang

Summary: This paper introduces the use of relative P-wave to construct the doubly-charm axialvector diquark operator, and then examines the scalar, axialvector and tensor fully-charm tetraquark states using QCD sum rules. It is observed that the ground state and first radial excited states of AA-type tetraquark states have nearly degenerated masses, and the broad structure above the J/psi J/psi threshold may consist of several diquark-antidiquark-type fully-charm tetraquark states.

INTERNATIONAL JOURNAL OF MODERN PHYSICS A (2021)

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Article Physics, Particles & Fields

Analysis of the fully-heavy pentaquark states via the QCD sum rules

Zhi-Gang Wang

Summary: In this article, we investigate the fully-heavy pentaquark states using QCD sum rules for the first time, and obtained their masses. We suggest searching for these states in the J/psi Omega(ccc) and Omega(bbb) invariant mass spectrum in the future.

NUCLEAR PHYSICS B (2021)

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Article Astronomy & Astrophysics

Doubly charmed molecular pentaquarks

Rui Chen et al.

Summary: The researchers systematically explored the possible doubly charmed molecular pentaquarks composed of Σ((c)*()) D-(*()) with a one-boson-exchange potential model. They predicted several possible doubly charmed molecular pentaquarks and suggested methods for searching for them.

PHYSICS LETTERS B (2021)

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Article Physics, Multidisciplinary

Observation of a Near-Threshold Structure in the K+ Recoil-Mass Spectra in e+ e- → K+ (Ds- D0 + Ds - D0)

M. Ablikim et al.

Summary: In this study, an excess of events near the D-s(-) D*(0) and D-s*(-) D-0 mass thresholds was observed in the K+ recoil-mass spectrum at a center-of-mass energy of 4.681 GeV. A resonance hypothesis with a charged hidden-charm tetraquark decaying into D-s(-) D*(0) and D-s*(-) D-0 was proposed based on the observed structure, but further exploration with more statistics is needed to verify its properties.

PHYSICAL REVIEW LETTERS (2021)

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Article Physics, Multidisciplinary

Strong decays of the Pcs(4459) as a Ξc(D)over-bar* molecule

Feng Yang et al.

Summary: This work studies the strong decay process of the newly observed P-cs(4459), suggesting it as a pure Xi(c)(D) over bar* molecular state. By evaluating partial decay widths, it supports the S-wave (D) over bar*Xi(c) molecular state for P-cs(4459, with a J(P) = 1/2(-) assignment, and suggests that the P-cs(4459) in the J(P) = 3/2(-) case might be explained as a coupled bound state with a larger Xi(c)(D) over bar* component. The experimental measurements of this strong decay could be essential for verifying the molecule interpretation of P-cs(4459).

SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY (2021)

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Article Multidisciplinary Sciences

Evidence of a J/ψΛ structure and observation of excited Ξ- states in the Ξb- → J/ψΛK- decay

R. Aaij et al.

Summary: The first evidence of a structure in the J/psi Lambda invariant mass distribution is obtained from an amplitude analysis of Xi(-)(b) -> J/psi Lambda K- decays. The observed structure is consistent with being due to a charmonium pentaquark with strangeness. Additionally, narrow excited Xi(-) states have been seen for the first time in a Xi(-)(b) decay.

SCIENCE BULLETIN (2021)

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Article Physics, Nuclear

Study of excited Ξ baryons with the (P)over-barANDA detector

G. Barucca et al.

Summary: The study of baryon excitation spectra provides insight into the inner structure of baryons, with future antiproton experiments expected to provide high production rates of hyperons, offering new information sources for the study of strange baryons.

EUROPEAN PHYSICAL JOURNAL A (2021)

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Article Physics, Nuclear

The potential of Λ and Ξ- studies with PANDA at FAIR

G. Barucca et al.

Summary: The PANDA experiment at FAIR aims to advance hadron physics to a new level in terms of range, precision, and accuracy, with a focus on studying hyperons as diagnostic tools for non-perturbative aspects of the strong interaction and fundamental symmetries. Simulation studies have shown that hyperon-antihyperon pairs from certain production channels can be efficiently and accurately reconstructed for detailed spin correlation studies.

EUROPEAN PHYSICAL JOURNAL A (2021)

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Article Physics, Particles & Fields

Scalar fully-heavy tetraquark states QQ′(Q)over-bar(Q)over-bar′ in QCD sum rules

Bo-Cheng Yang et al.

Summary: Researchers identified distinct structures in the J/Psi-pair mass spectrum as different masses of tetraquark states using QCD sum rules. The octet-octet tetraquark states were found to have masses around 6.44-6.96 GeV, with corresponding fully-bottom partners around 18.38-18.59 GeV.

EUROPEAN PHYSICAL JOURNAL C (2021)

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Article Physics, Particles & Fields

Tetraquark state X(6900) and the interaction between diquark and antidiquark

Hong-Wei Ke et al.

Summary: This study investigates the possible cc-(c) over bar(c) over bar bound states and the interaction between diquark (cc) and antidiquark ((c) over bar(c) over bar) within the Bethe-Salpeter framework. Numerical solutions of the B-S equations for different quantum numbers show that some excited states' spectra can be close to the mass of the newly discovered X(6900) with appropriate parameter values. Future measurements of the bb-(b) over bar(b) over bar state may aid in determining the exact form of effective interaction.

EUROPEAN PHYSICAL JOURNAL C (2021)

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Article Physics, Particles & Fields

Nonrelativistic treatment of fully-heavy tetraquarks as diquark-antidiquark states

Halil Mutuk

Summary: This study aimed to estimate the masses of ground and excited states of fully-heavy tetraquark systems using a nonrelativistic model. The predicted masses of ground states were found to be higher than the decay thresholds, making them difficult to observe experimentally, while the first excited states showed lower masses compared to their respective thresholds, suggesting potential observability in experiments.

EUROPEAN PHYSICAL JOURNAL C (2021)

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Article Physics, Particles & Fields

Establishing the first hidden-charm pentaquark with strangeness

Hua-Xing Chen et al.

Summary: The study supports the interpretation of P-cs(4459)(0) as the (D) over bar *Xi(c) hadronic molecular state, and suggests further investigation to verify this interpretation by examining the separation of P-cs(4459)(0) into two states.

EUROPEAN PHYSICAL JOURNAL C (2021)

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Article Physics, Particles & Fields

Fully-heavy tetraquark spectra and production at hadron colliders

Ruilin Zhu

Summary: The study focused on exotic structures observed around 6900 MeV in J/psi-pair mass spectrum, investigating the spectra of fully-heavy tetraquarks and predicting new structures at different energy levels. The production of fully-heavy S-wave tetraquarks at hadron colliders was also explored, obtaining their cross sections.

NUCLEAR PHYSICS B (2021)

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Article Astronomy & Astrophysics

Fully-heavy structures in the invariant mass spectrum of J/ψψ (3686) J/ψψ (3770), ψ(3686)ψ(3686), and J/ψ(sic)(1S) at hadron colliders

Jun-Zhang Wang et al.

Summary: In this work, the line shape of potential fully-heavy structures in the invariant mass spectrum of J/psi psi(3686) at high-energy proton-proton collisions was predicted based on a dynamical rescattering picture. The mu(+)mu(-) pair was identified as more efficient in experimentally reconstructing these structures compared to Q (Q) over bar meson with other quantum numbers, with corresponding peak mass positions provided for each predicted fully-heavy structure. The theoretical studies conducted here may offer valuable information for future measurement proposals of LHCb and CMS, especially utilizing data from completing Run III of LHC.

PHYSICS LETTERS B (2021)

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Article Physics, Nuclear

QCD and the strange baryon spectrum

Tetsuo Hyodo et al.

PROGRESS IN PARTICLE AND NUCLEAR PHYSICS (2021)

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Article Physics, Multidisciplinary

Production of Pcs (4459) from Ξb Decay

Qi Wu et al.

Summary: Inspired by the recent work on P-cs (4459) by the LHCb collaboration, this study investigates the production of P-cs (4459) from Xi(b) decay using an effective Lagrangian approach. The estimated branching fractions for Xi(b) -> P-cs (4459) K are of the order of 10(-4) for different J(P) assignments to P-cs (4459). These estimations, combined with the decay properties of P-cs (4459), could be further confirmed through precise measurements, contributing to a better understanding of molecular interpretations and exploration of the J(P) quantum numbers of P-cs (4459).

CHINESE PHYSICS LETTERS (2021)

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Article Physics, Nuclear

PANDA Phase One

G. Barucca et al.

Summary: FAIR facility in Darmstadt, Germany offers unique possibilities for new generation of physics experiments, with PANDA experiment focusing on strong interactions and physics beyond the Standard Model. The paper discusses a staged approach for detector setup and luminosity delivery, outlining achievable physics program during Phase One with the available detector setup.

EUROPEAN PHYSICAL JOURNAL A (2021)

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Article Physics, Particles & Fields

Prompt production of the hidden charm pentaquarks in the LHC

Pan Ling et al.

Summary: The study estimated the cross sections of hidden charm pentaquarks and pointed out the differences between the two isospin components, as well as analyzed the variation of cross sections at different momenta.

EUROPEAN PHYSICAL JOURNAL C (2021)

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Article Physics, Particles & Fields

X(6200) as a compact tetraquark in the QCD string model

A. V. Nefediev

Summary: The LHCb Collaboration recently observed nontrivial structures in the double-J/psi mass spectrum in the mass range of 6.2-7.2 GeV, and identified a new state X(6200) close to the double-J/psi threshold. The QCD string model suggests the existence of a compact cccc state below the double-J/psi threshold, with an interplay between quark dynamics and molecular dynamics. The physical X(6200) is argued to be a shallow bound state, consistent with the results of the coupled-channel analysis of the LHCb data.

EUROPEAN PHYSICAL JOURNAL C (2021)

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Article Physics, Particles & Fields

The Pcs(4459) pentaquark from a combined effective field theory and phenomenological perspective

Fang-Zheng Peng et al.

Summary: The LHCb collaboration's observation of the P-cs(4459) adds to the known hidden-charm pentaquark family, and suggests a molecular explanation for its properties. Additionally, an accidental symmetry between the P-cs(4459) and P-c(4440/4457) potentials is highlighted.

EUROPEAN PHYSICAL JOURNAL C (2021)

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Article Physics, Multidisciplinary

Observation of New Resonances Decaying to J=ΨK plus and J=Ψφ

R. Aaij et al.

Summary: The first observation of exotic states with a new quark content ccus decaying to the J/Psi K+ final state through an amplitude analysis of the B+-> J/ Psi phi K+ decay is reported. These states include the significant Z(cs)(4000)+ and a new 1(+) X(4685) state. Additionally, four previously reported J/Psi phi states were confirmed and two more exotic states, Z(cs)(4220)+ and X(4630), were observed with significance exceeding 5 standard deviations.

PHYSICAL REVIEW LETTERS (2021)

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Article Astronomy & Astrophysics

Gluonic tetracharm configuration of X(6900)

Bing-Dong Wan et al.

Summary: A new hadronic structure around 6.9GeV containing at least four charm quarks was observed in an LHCb experiment, indicating the existence of tetracharm exotic states. A nature hybrid interpretation for this structure was proposed, suggesting it could be a gluonic tetracharm state. Other structures, such as a tetracharm state around 7.2GeV, were also predicted, awaiting future experiments.

PHYSICS LETTERS B (2021)

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Article Physics, Particles & Fields

Revisiting the nature of the Pc pentaquarks

Meng-Lin Du et al.

Summary: This study investigates the nature of three narrow hidden-charm pentaquark states, suggesting P-c(4312) as a Sigma(c)D hadronic molecule, P-c(4440) and P-c(4457) as a Sigma(c)D and Sigma(c)D* hadronic molecules respectively, and identifies a new narrow state P-c(4380). The analysis reveals that the data is consistent with the proposed interpretations.

JOURNAL OF HIGH ENERGY PHYSICS (2021)

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Article Multidisciplinary Sciences

Is the existence of a J/ψJ/ψ bound state plausible?

Xiang-Kun Dong et al.

Summary: By analyzing the data, an improved value for the psi(2S) -> J/psi transition chromo-electric polarisability was found, which includes both pi pi and K (K) over bar final state interactions.

SCIENCE BULLETIN (2021)

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Article Astronomy & Astrophysics

Pc(4457) → Pc (4312)π/γ in the molecular picture

Xi-Zhe Ling et al.

Summary: The study investigated the multiplet of three pentaquark states discovered in 2019 by the LHCb Collaboration, and analyzed the decay modes of P-c(4457) using effective Lagrangian approach and triangle mechanism to explore its spin. The results showed that the spin of P-c(4457) cannot be discriminated through the two decay modes.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Predicting another doubly charmed molecular resonance T′cc+ (3876)

Rui Chen et al.

Summary: This study successfully predicts the mass of doubly charmed molecular tetraquark states and proposes the existence of the resonance state T'(+)(cc) by considering the isospin breaking effect. The results provide a new method for identifying doubly charmed molecular states.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Observation of the suppressed Λb0 → DpK- decay with D → K+ π- and measurement of its CP asymmetry

R. Aaij et al.

Summary: This study presents an analysis of A(b)(0) baryon decays to the DpK(-) final state using data collected with the LHCb detector corresponding to an integrated luminosity of 9 fb(-1) from proton-proton collisions. The two A(b)(0) decays considered involve D -> K-pi(+) and D -> K+pi(-), with the latter process observed for the first time. The branching fraction ratio of the two decays is measured, along with reporting the CP asymmetry of the suppressed mode, which is sensitive to the Cabibbo-Kobayashi-Maskawa angle gamma.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Fine structure of pentaquark multiplets in the dynamical diquark model

Jesse F. Giron et al.

Summary: Using the dynamical diquark model, the spectrum of hidden-charm pentaquark states in unflavored and open-strange sectors is predicted. The model utilizes Hamiltonian parameters from tetraquark multiplets and inputs from data of Zcs tetraquarks to make these predictions. All observed pentaquark candidates to date belong to the 1P multiplet and have positive parity.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Searching for strange hidden-charm pentaquark state Pcs(4459) in γp → K+ Pcs(4459) reaction

Cai Cheng et al.

Summary: The study investigates the possibility of probing the hidden charm pentaquark state P-cs(4459) through photon-induced reactions on a proton target using an effective Lagrangian approach. Different production mechanisms are considered and calculations show that the P-cs(4459) can be interpreted as a molecule composed of over bar D*Ec. Cross-section calculations for various processes indicate discrepancies between assuming P-cs(4459) as a compact pentaquark and as a molecule of over bar D*Ec. These results can be tested in future experiments, such as the Electron-Ion Collider in China and the United States, to further understand the nature of P-cs.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Holographic charm and bottom pentaquarks. III. Excitations through photoproduction of heavy mesons

Yizhuang Liu et al.

Summary: The study focused on photoexcitation of charm and bottom pentaquarks using holographic assignments and photoproduction of heavy vector mesons near threshold. A Witten diagram was used to combine s-channel photoexcitation of holographic pentaquarks with t-channel graviton or tensor glueball exchange to extract scattering amplitude for heavy meson photoproduction in the threshold region. The pentaquark signal was found to be undetectable at current electron facilities.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Holographic charm and bottom pentaquarks. II. Open and hidden decay widths

Yizhuang Liu et al.

Summary: This study analyzes the decay modes of nonstrange pentaquarks with hidden charm and bottom in the heavy quark limit, predicted by holographic QCD. It shows that open charm (bottom) decay modes dominate over hidden charm (bottom) ones, with total widths consistent with recent LHCb reports on charm pentaquarks. Predictions for bottom pentaquarks are also provided. The results of this paper will be used in a follow-up study on excitations through photo-production of heavy mesons.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Higher mass spectra of the fully-charmed and fully-bottom tetraquarks

Feng-Xiao Liu et al.

Summary: In this study, the higher mass spectra for fully-charmed and fully-bottom tetraquark states in 2S and 1D waves were calculated using a nonrelativistic potential quark model. The calculation predicts mass ranges for these states and potential causes for observed structures in experimental data, contributing to the understanding of their properties in strong and magnetic interactions. The potential quark model calculations show more states than observed in experiments, suggesting further research is needed for a comprehensive understanding.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Exotic fully heavy QQQQ over bar tetraquark states in 8[QQ] ⊕ 8[QQ] color configuration

Qi-Nan Wang et al.

Summary: The mass spectra of fully charm and fully bottom tetraquark states were calculated in the 8[QQ overbar] (R) 8[QQ overbar] color configuration, suggesting potential components in LHCb's structures. Masses for fully charm tetraquarks were predicted around 6.3-7.2 GeV, while for fully bottom tetraquarks were calculated around 18.2-18.8 GeV, below two-meson decay thresholds.

PHYSICAL REVIEW D (2021)

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Review Astronomy & Astrophysics

T cc plus decays: Differential spectra and two-body final states

Sean Fleming et al.

Summary: Researchers have discovered the tetraquark system T thorn cc, which may have a significant molecular component, and have calculated its decay process and differential spectrum in good agreement with experimental measurements. Furthermore, it is pointed out that the existence of shallow bound states of two pseudoscalar charm mesons can significantly enhance the width of T thorn cc if present.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Evidence supporting the existence of Pc(4380)± from the recent measurements of Bs → J=ψp(p)over-bar

Jun-Zhang Wang et al.

Summary: Recent measurements by the LHCb collaboration reveal a potential contribution from the Pc(4380)+ state in the process of Bs -> J=psi pp over bar, providing possible evidence for the existence of the pentaquark Pc(4380).

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Pc(4312)+ and Pc(4337)+ as interfering Σc(D)over-bar and Λc(D)over-bar* threshold cusps

S. X. Nakamura et al.

Summary: The recent data from LHCb revealed a new pentaquark-like P-c(4337)(+) structure in B-s(0) -> J/psi p (p) over bar over bar, while not finding evidence for the previous P-c(4312)(+) in Lambda(0)(b) -> J/psi pK(-). These results offer important clues to understand the nature of pentaquark candidates. The proposed model suggests that different interference patterns between E-c(D) over bar and Lambda(c) (D) over bar* threshold cusps explain the appearance of P-c(4312)(+) and P-c(4337)(+) peaks in different decay processes.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

D0D0 π+ mass distribution in the production of the Tcc exotic state

A. Feijoo et al.

Summary: In this study, a unitary coupled channel analysis was performed on the interaction of the D*D-+(0), D*D-0(+) channels, revealing a state that is barely bound and very close to isospin I = 0. Using experimental data as input, the width of the state and the (DD0π-)-D0+ mass distribution were obtained, showing good agreement with results from other data analyses. When considering experimental resolution, the width of the state was found to be about 43 keV, a significant difference from the initial findings.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Coupled-channel effects of the Σc()(D)over-bar() - Λc(2595)(D)over-bar over line system and molecular nature of the Pc pentaquark states from one-boson exchange model

Nijiati Yalikun et al.

Summary: The study suggests that by reducing the strength of the OPE delta(r) term in the OBE model by about 80%, it is possible to simultaneously reproduce the masses of Pc(4312), Pc(4440), and Pc(4457), leading to a better fit for the mass splittings.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Probing the long-range structure of the Tcc+ with the strong and electromagnetic decays

Lu Meng et al.

Summary: The study focuses on the characteristics of the doubly charmed tetraquark state T-cc(+), including binding energy, coupling constants, and various decay channels. The results indicate that the decay width of T-cc(+) -> (DD0)-D-0 pi(+) is the largest, suggesting this as the dominant experimental observation channel.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Evidence for the decay Ωc0 → π+Ω(2012)- → π+ ((K)over-barΞ)-

Y. Li et al.

Summary: In this study, evidence for the presence of Omega(2012) in the resonant substructure of Omega(0)(c) -> pi(+)(<(K)over bar Xi)(-) decays is presented using data collected with the Belle detector at the KEKB collider. The significance of the signal is calculated to be 4.2s after considering systematic uncertainties, and the branching fraction ratios are determined.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Spectrum of hidden-charm, open-strange exotics in the dynamical diquark model

Jesse F. Giron et al.

Summary: The observation of states with hidden charm and open strangeness provides new opportunities for the development of a global model of heavy-quark exotics. The mass splitting between different states implies substantial SU(3) flavor mixing, while the average mass compared to other sectors offers insight into flavor octet-singlet mixing among exotics. The effects of eta-like exchanges are found to be limited, and certain pentaquarks fit well within the model.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Higher fully charmed tetraquarks: Radial excitations and P-wave states

Guang-Juan Wang et al.

Summary: In this study, the mass spectrum of fully charmed tetraquark ccc c states is systematically calculated using a nonrelativistic quark model, uncovering large mass splittings for rho-mode excitations with different color configurations. It is suggested that the lowest T-c states may decay into P-wave eta(c)J/psi and di-J/psi modes, enriching the hadronic spectrum upon experimental confirmation.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Understanding Pcs(4459) as a hadronic molecule in the Ξb- → J/ψΛK- decay

Jun-Xu Lu et al.

Summary: The research investigates a hidden charm pentaquark state P(cs) (4459) recently reported by the LHCb Collaboration, which is assumed to be related to a (D) over bar*Xi(c) molecular state. By studying the Xi(-)(b) -> J/psi Lambda K- decay through triangle diagrams, the study obtains a model independent constraint on the product of couplings and predicts the branching ratio for future experimental studies.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Mass spectra and wave functions of TQQ(Q)over-bar(Q)over-bar tetraquarks

Qiang Li et al.

Summary: This study investigates compact tetraquark states with fully heavy quark contents, deriving mass spectra and wave functions numerically. The results show the ground state mass ranges for cc (c) over bar(c) over bar and bb (b) over bar(b) over bar tetraquarks. The relativistic wave functions obtained can be used for precise calculations of tetraquark decays, suggesting that the observed X(6900) by LHCb may not be the ground state but possibly an excited state. Additionally, a widely used propagatorlike form factor is also explored and discussed.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Study of charmoniumlike and fully-charm tetraquark spectroscopy

Zheng Zhao et al.

Summary: This study evaluates the masses of tetraquark states using a constituent quark model and pre-determined model parameters. The observed X(6900) by LHCb is suggested to be the first radial excited fully-charm tetraquark state.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Exploration of the doubly charmed molecular pentaquarks

Kan Chen et al.

Summary: In this study, the interactions of Sigma D-(*)(c)(*) systems were systematically investigated within the framework of chiral effective field theory, with different contributions used to describe short-, long-, and intermediate-range interactions. The low energy constants of the systems were estimated from N (N) over bar scattering data, and different inputs of LECs led to distinguishable mass spectra for the bound states. Additionally, interactions of charmed-bottom Sigma((*))(c)(B) over bar((*)), Sigma D-(*)(b)(*), and Sigma((*))(b)(B) over bar((*)) systems were also explored, with deeper bindings observed for heavier reduced masses.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Importance of meson-meson and of diquark-antidiquark creation operators for a (b)over-bar(b)over-barud tetraquark

Pedro Bicudo et al.

Summary: This study used lattice QCD to investigate a tetraquark particle and found that at short distances, the diquark-antidiquark structure dominates, while at larger distances, it is mostly a meson-meson state. The estimated meson-meson to diquark-antidiquark ratio of this tetraquark is around 60%/40%.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Hidden charm tetraquark states in a diquark model

Pan-Pan Shi et al.

Summary: The study investigates the mass spectrum of hidden charm tetraquark states within a diquark model and systematically calculates the masses of various possible tetraquark states. The results confirm the composition of several known tetraquark states and provide predictions for other possible tetraquark states.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Investigation of Pcs(4459)0 pentaquark via its strong decay to ΛJ/Ψ

K. Azizi et al.

Summary: The study investigates the decay of the new pentaquark state P-cs(4459)(0) -> J/Psi Lambda within the QCD sum rule framework, assigning its spin-parity quantum numbers as J(P) = 1-/2 and substructure as diquark-diquark-antiquark. The obtained width from the analysis is consistent with experimental observations, confirming the quantum numbers and compact pentaquark nature of the P-cs(4459)(0) state.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Producing fully charm structures in the J/ψ-pair invariant mass spectrum

Jun-Zhang Wang et al.

Summary: This study focuses on the novel phenomenon of enhancement structures in the invariant mass spectrum of a J/psi pair reported by LHCb. A new dynamical mechanism is proposed based on special reactions, and possible enhancement structures in the Upsilon(1S)-pair invariant mass spectrum are predicted.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Fully heavy pentaquark states

Jian-Rong Zhang

Summary: This study utilizes the QCD sum rule approach to numerically calculate the masses of novel fully heavy QQQQ (Q) over bar pentaquark states, resulting in values of 7.41(-0.3)(1)(+0.27) GeV for cccc (c) over bar and 21.6012 GeV for bbbb (b) over bar. These predicted all-heavy pentaquark states can be searched for in the Omega(QQQ eta Q) invariant mass spectrum in experiments.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Spin-parities of the Pc(4440) and Pc(4457) in the one-boson-exchange model

Ming-Zhu Liu et al.

Summary: The LHCb collaboration has recently observed three pentaquark peaks, which are very close to heavy baryon-meson thresholds. The spin-parities of these states are not yet known, but one is assumed to be 1/2- and the other two are of unknown spin-parity. The one-boson-exchange model is used to predict the quantum numbers of the molecular pentaquarks.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Pcs(4459) and other possible molecular states from Ξc()(D)over-bar() and Ξc′(D)over-bar(*) interactions

Jun-Tao Zhu et al.

Summary: The study reports a new molecular state P-cs(4459) and its possible properties, while predicting the existence and characteristics of other strange pentaquark states, providing insights into the origin and internal structure of these exotic heavy flavor states.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Fully heavy pentaquarks

Hong-Tao An et al.

Summary: The study presents a systematic investigation on the mass spectra of fully heavy pentaquark states and their decay behaviors in the framework of the chromomagnetic interaction model, aiming to assist in the search for exotic pentaquark states in future experiments.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Can the newly reported Pcs(4459) be a strange hidden-charm Ξc(D)over-bar* molecular pentaquark?

Rui Chen

Summary: The research results show that the new Pcs o4459THORN may not be a pure.cD molecular state, but a bound state with a coupled structure of Xi(')c <(Dover bar>* =.0 c D =. c D, indicating possible strange hidden-charm molecular or resonant structures near certain thresholds.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Insights into the inner structures of the fully charmed tetraquark state X(6900)

Zhi-Hui Guo et al.

Summary: The recently discovered fully charmed tetraquark candidate X(6900) was analyzed using various theoretical approaches, showing that the two-meson components do not play dominant roles in X(6900). Resonance poles determined from the coupled-channel study were found to be consistent with experimental analyses, and a new narrow resonance X(6825) was predicted below the chi(c0)chi(c0) threshold.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Resonances X(4140), X(4160), and Pcs(4459) in the decay of Λb → J/ψΛφ

Wen-Ying Liu et al.

Summary: In this study, the decay process of Lambda(b) -> J/psi Lambda phi was analyzed with consideration of intermediate resonances X(4140), X(4160), and P-cs(4459). A bump structure around 4160 MeV and a cusp structure near the D-s*(D) over bar (s)* threshold were identified in the J/psi phi invariant mass distribution, potentially associated with the molecular state X(4160). The existence of the hidden-charm pentaquark P-cs(4459) with strangeness was also suggested. Additional enhancement structures close to threshold were predicted in the D-s*(D) over bar (s)* invariant mass distribution of the Lambda(b) -> D-s*(D) over bar (s)*Lambda process.

PHYSICAL REVIEW D (2021)

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Article Physics, Multidisciplinary

Interaction and identification of meson-baryon molecule

D. P. Rathaud et al.

Summary: This study explores di-hadronic molecular systems with different interaction potentials and proposes a dipole-like interaction between two color neutral hadrons within hadronic molecules. The results predict some interesting near-threshold molecular pentaquark states.

INDIAN JOURNAL OF PHYSICS (2021)

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Article Astronomy & Astrophysics

Can discovery of hidden charm strange pentaquark states help determine the spins of Pc(4440) and Pc(4457)?

Ming-Zhu Liu et al.

Summary: The study explores the SU(3)-flavor counterparts of (D) over bar (*()) Sigma(()(c) *()) and (D) over bar (*()) Xi(()(c)'())* molecules, finding the existence of a complete hidden charm strange multiplet. The spins of P-c(4440) and P-c(4457) remain uncertain, but it is suggested that the discovery of (D) over bar (*()) Xi(()(c) *()) molecules could help determine these spins and shed light on heavy quark and light quark interactions.

PHYSICAL REVIEW D (2021)

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Article Physics, Nuclear

Investigating Ω(2012) as a molecular state

Xuejie Liu et al.

Summary: Dynamical calculations of pentaquark systems with sssurt quark contents were conducted in ChQM and QDCSM. The results indicate that Xi*(K) over bar may not be suitable for interpretation as a molecular state, but two resonance states were found to potentially exist.

PHYSICAL REVIEW C (2021)

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Article Astronomy & Astrophysics

0+ fully-charmed tetraquark states

Jian-Rong Zhang

Summary: The study examines 0(+) fully-charmed tetraquark states through QCD sum rules, with mass values matching experimental data and supporting the possibility of it being a fully-charmed tetraquark state.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Masses of doubly heavy tetraquarks with error bars

Eric Braaten et al.

Summary: In the heavy-quark limit, two heavy quarks in a doubly heavy baryon or tetraquark are bound into a compact diquark by their color-Coulomb potential. The doubly heavy hadrons are related to heavy hadrons obtained by replacing the heavy diquark with a heavy antiquark, based on the heavy-quark-diquark symmetry of QCD. Effective field theories can be used to approximate the masses of singly heavy and doubly heavy hadrons by expanding them in inverse powers of heavy-quark masses. The masses of ground-state doubly heavy tetraquarks, predicted to be stable against strong decays, can be determined based on experimental measurements of heavy mesons and baryons, as well as lattice QCD calculations for doubly heavy baryons.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Towards the understanding of fully-heavy tetraquark states from various models

Chengrong Deng et al.

Summary: The study reveals that the color-magnetic interaction model cannot fully absorb QCD dynamical effects, and the Coulomb interaction plays a critical role in dynamical model calculations for heavy quarks. Different color configurations dominate in the ground and excited states of the states investigated.

PHYSICAL REVIEW D (2021)

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Article Physics, Nuclear

Systematical investigation on the stability of doubly heavy tetraquark states

Chengrong Deng et al.

EUROPEAN PHYSICAL JOURNAL A (2020)

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Article Physics, Nuclear

Analysis of the Pc(4312), Pc(4440), Pc(4457) and related hidden-charm pentaquark states with QCD sum rules

Zhi-Gang Wang

INTERNATIONAL JOURNAL OF MODERN PHYSICS A (2020)

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Article Physics, Particles & Fields

Selected strong decays of pentaquark State Pc(4312) in a chiral constituent quark model

Yubing Dong et al.

EUROPEAN PHYSICAL JOURNAL C (2020)

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Article Physics, Particles & Fields

Revisiting the Ω(2012) as a hadronic molecule and its strong decays

Jun-Xu Lu et al.

EUROPEAN PHYSICAL JOURNAL C (2020)

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Article Physics, Particles & Fields

Fully open -flavor tetraquark states bcgs and scq-b with JP=0+,1+

Qi-Nan Wang et al.

EUROPEAN PHYSICAL JOURNAL C (2020)

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Article Physics, Multidisciplinary

Spectroscopy of hidden-charm tetraquarks in diquark model

Zahra Ghalenovi et al.

EUROPEAN PHYSICAL JOURNAL PLUS (2020)

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Article Astronomy & Astrophysics

New LHCb pentaquarks as hadrocharmonium states

Michael Eides et al.

MODERN PHYSICS LETTERS A (2020)

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Review Physics, Multidisciplinary

The XYZ states: Experimental and theoretical status and perspectives

Nora Brambilla et al.

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS (2020)

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Article Physics, Nuclear

Identifying hidden charm pentaquark signal from non-resonant background in electron-proton scattering*

Zhi Yang et al.

CHINESE PHYSICS C (2020)

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Editorial Material Multidisciplinary Sciences

J/ψ-pair resonances by LHCb: a new revolution?

Luciano Maiani

SCIENCE BULLETIN (2020)

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Editorial Material Multidisciplinary Sciences

About the J/ψ J/ψ peak of LHCb: fully-charmed tetraquark?

Jean-Marc Richard

SCIENCE BULLETIN (2020)

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Article Physics, Particles & Fields

Masses of fully heavy tetraquarks QQQQ in an extended relativized quark model

Qi-Fang Lu et al.

EUROPEAN PHYSICAL JOURNAL C (2020)

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Article Multidisciplinary Sciences

Exploring Possible Triangle Singularities in the Xi(-)(b) -> K- J/psi Lambda Decay

Chao-Wei Shen et al.

SYMMETRY-BASEL (2020)

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Article Multidisciplinary Sciences

Strong decays of fully-charm tetraquarks into di-charmonia

Hua-Xing Chen et al.

SCIENCE BULLETIN (2020)

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Editorial Material Multidisciplinary Sciences

The possible tetraquark states cc (c)over-bar(c)over-bar observed by the LHCb experiment

Kuang-Ta Chao et al.

SCIENCE BULLETIN (2020)

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Article Multidisciplinary Sciences

Observation of structure in the J/ψ-pair mass spectrum

R. Aaij et al.

SCIENCE BULLETIN (2020)

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Article Physics, Multidisciplinary

Model-Independent Study of Structure in B+ → D+D-K+ Decays

R. Aaij et al.

PHYSICAL REVIEW LETTERS (2020)

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Article Astronomy & Astrophysics

A study of cc(c)over-bar(c)over-bar tetraquark decays in 4 muons and in D() (D)over-bar() at LHC

C. Becchi et al.

PHYSICS LETTERS B (2020)

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Article Astronomy & Astrophysics

Interpretation of structure in the di-J/ψ, spectrum

Marek Karliner et al.

PHYSICAL REVIEW D (2020)

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Article Astronomy & Astrophysics

Masses of the QQ(Q)over-bar(Q)over-bar tetraquarks in the relativistic diquark-antidiquark picture

R. N. Faustov et al.

PHYSICAL REVIEW D (2020)

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Article Astronomy & Astrophysics

Lattice investigation of exotic tetraquark channels

R. J. Hudspith et al.

PHYSICAL REVIEW D (2020)

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Article Astronomy & Astrophysics

Diffusion Monte Carlo calculations of fully-heavy multiquark bound states

M. C. Gordillo et al.

PHYSICAL REVIEW D (2020)

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Article Physics, Particles & Fields

Full-heavy tetraquarks in constituent quark models

Xin Jin et al.

EUROPEAN PHYSICAL JOURNAL C (2020)

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Article Physics, Particles & Fields

Deciphering the mechanism of near-threshold J/ψ photoproduction

Meng-Lin Du et al.

EUROPEAN PHYSICAL JOURNAL C (2020)

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Article Astronomy & Astrophysics

Study of the lineshape of the χc1 (3872) state

R. Aaij et al.

PHYSICAL REVIEW D (2020)

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Article Multidisciplinary Sciences

Tetra- and Penta-Quark Structures in the Constituent Quark Model

Gang Yang et al.

SYMMETRY-BASEL (2020)

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Article Astronomy & Astrophysics

Reanalysis of the newly observed Ω* state in a hadronic molecule model

Yong-Hui Lin et al.

PHYSICAL REVIEW D (2020)

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Article Astronomy & Astrophysics

Theoretical study of the Ω(2012) state in the Ωc0 → π+Ω(2012)- → π+ ((K)over-barΞ)- and π+ ((K)over-barΞπ)- decays

Chun-Hua Zeng et al.

PHYSICAL REVIEW D (2020)

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Article Astronomy & Astrophysics

Simple spectrum of c(c)over-barc(c)over-bar states in the dynamical diquark model

Jesse F. Giron et al.

PHYSICAL REVIEW D (2020)

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Article Physics, Nuclear

Prediction of NΩ-like dibaryons with heavy quarks

Hongxia Huang et al.

PHYSICAL REVIEW C (2020)

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Article Astronomy & Astrophysics

Double-heavy tetraquarks

Gang Yang et al.

PHYSICAL REVIEW D (2020)

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Article Astronomy & Astrophysics

Ω baryon spectrum and their decays in a constituent quark model

Ming-Sheng Liu et al.

PHYSICAL REVIEW D (2020)

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Article Astronomy & Astrophysics

Partial decay widths of Pc(4312) as a (D)over-barΣc, molecular state

Yong-Jiang Xu et al.

PHYSICAL REVIEW D (2020)

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Article Astronomy & Astrophysics

Probing hidden-charm decay properties of Pc states in a molecular scenario

Guang-Juan Wang et al.

PHYSICAL REVIEW D (2020)

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Article Astronomy & Astrophysics

Masses of doubly heavy tetraquarks TQQ′ in a relativized quark model

Qi-Fang Lu et al.

PHYSICAL REVIEW D (2020)

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Article Astronomy & Astrophysics

Molecular picture for the Ω(2012) revisited

Natsumi Ikeno et al.

PHYSICAL REVIEW D (2020)

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Article Astronomy & Astrophysics

Pc pentaquarks with chiral tensor and quark dynamics

Yasuhiro Yamaguchi et al.

PHYSICAL REVIEW D (2020)

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Article Astronomy & Astrophysics

Doubly charmed pentaquarks

Gang Yang et al.

PHYSICAL REVIEW D (2020)

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Article Astronomy & Astrophysics

Can the state Y(4626) be a P-wave tetraquark state [cs] [(c)over-bar(s)over-bar]?

Chengrong Deng et al.

PHYSICAL REVIEW D (2020)

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Article Physics, Multidisciplinary

REVISIT THE X(4274) AS THE AXIALVECTOR TETRAQUARK STATE

Zhi-Gang Wang

ACTA PHYSICA POLONICA B (2020)

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Article Astronomy & Astrophysics

Spectrum of the strange hidden charm molecular pentaquarks in chiral effective field theory

Bo Wang et al.

PHYSICAL REVIEW D (2020)

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Article Physics, Nuclear

Probing new types of Pc states inspired by the interaction between an S-wave charmed baryon and an anticharmed meson in a (T)over-bar doublet state

Fu-Lai Wang et al.

PHYSICAL REVIEW C (2020)

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Article Physics, Particles & Fields

Analysis of the mass and width of the X(4140) as axialvector tetraquark state

Zhi-Gang Wang et al.

EUROPEAN PHYSICAL JOURNAL C (2019)

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Article Physics, Particles & Fields

Pentaquark states with the QQQq(q)over-bar configuration in a simple model

Shi-Yuan Li et al.

EUROPEAN PHYSICAL JOURNAL C (2019)

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Article Physics, Multidisciplinary

Observation of Ξ(1620)0 and Evidence for Ξ(1690)0 in Ξc+ → Ξ- π+ π+ Decays

M. Sumihama et al.

PHYSICAL REVIEW LETTERS (2019)

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Article Astronomy & Astrophysics

Threshold corrections of χc(2P) and χb(3P) states and J/ψρ and J/ψω transitions of the X(3872) in a coupled-channel model

J. Ferretti et al.

PHYSICS LETTERS B (2019)

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Article Astronomy & Astrophysics

The proton-Ω correlation function in Au plus Au collisions at √sNN=200 GeV

J. Adam et al.

PHYSICS LETTERS B (2019)

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Review Physics, Multidisciplinary

Colloquium: Roper resonance: Toward a solution to the fifty year puzzle

Volker D. Burkert et al.

REVIEWS OF MODERN PHYSICS (2019)

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Article Physics, Nuclear

Isospin asymmetry of the pseudospin symmetry in nuclear resonant states

Q. Xu

EUROPEAN PHYSICAL JOURNAL A (2019)

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Article Physics, Particles & Fields

Study of Pc(4457), Pc(4440), and Pc(4312) in a quasipotential Bethe-Salpeter equation approach

Jun He

EUROPEAN PHYSICAL JOURNAL C (2019)

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Article Physics, Multidisciplinary

Observation of the Decay X(3872) → π0χc1 (1P)

M. Ablikim et al.

PHYSICAL REVIEW LETTERS (2019)

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Article Astronomy & Astrophysics

Ω(2012) through the looking glass of flavour SU(3)

Maxim V. Polyakov et al.

PHYSICS LETTERS B (2019)

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Review Physics, Nuclear

Pentaquark and Tetraquark States

Yan-Rui Liu et al.

PROGRESS IN PARTICLE AND NUCLEAR PHYSICS (2019)

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Review Physics, Nuclear

QCD sum rules approach to the X, Y and Z states

Raphael M. Albuquerque et al.

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS (2019)

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Article Physics, Multidisciplinary

Emergence of a Complete Heavy-Quark Spin Symmetry Multiplet: Seven Molecular Pentaquarks in Light of the Latest LHCb Analysis

Ming-Thu Liu et al.

PHYSICAL REVIEW LETTERS (2019)

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Article Physics, Multidisciplinary

Observation of a Narrow Pentaquark State, Pc(4312)+, and of the Two-Peak Structure of the Pc(4450)+

R. Aaij et al.

PHYSICAL REVIEW LETTERS (2019)

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Article Astronomy & Astrophysics

Anatomy of the newly observed hidden-charm pentaquark states: PC(4312), PC(4440) and PC(4457)

Zhi-Hui Guo et al.

PHYSICS LETTERS B (2019)

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Article Physics, Nuclear

Neural network study of hidden-charm pentaquark resonances

Halil Mutuk

CHINESE PHYSICS C (2019)

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Article Physics, Multidisciplinary

First Measurement of Near-Threshold J/ψ Exclusive Photoproduction off the Proton

A. Ali et al.

PHYSICAL REVIEW LETTERS (2019)

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Article Physics, Particles & Fields

Molecular states from Σc()(D)over-bar() - Λc(D)over-bar(*) interaction

Jun He et al.

EUROPEAN PHYSICAL JOURNAL C (2019)

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Article Astronomy & Astrophysics

Analyzing doubly heavy tetra- and penta-quark states by variational method

Ruilin Zhu et al.

PHYSICS LETTERS B (2019)

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Article Physics, Particles & Fields

Hidden-charm and hidden-bottom molecular pentaquarks in chiral effective field theory

Bo Wang et al.

JOURNAL OF HIGH ENERGY PHYSICS (2019)

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Article Physics, Multidisciplinary

Heavy quark spin multiplet structure of Pc-like pentaquarks as a P-wave hadronic molecular state

Yuki Shimizu et al.

PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS (2019)

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Article Astronomy & Astrophysics

Pentaquarks with anticharm or beauty revisited

Jean-Marc Richard et al.

PHYSICS LETTERS B (2019)

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Article Astronomy & Astrophysics

Prediction of hidden charm strange molecular baryon states with heavy quark spin symmetry

C. W. Xiao et al.

PHYSICS LETTERS B (2019)

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Article Astronomy & Astrophysics

Exploring the molecular scenario of Pc(4312), Pc(4440), and Pc(4457)

Cheng-Jian Xiao et al.

PHYSICAL REVIEW D (2019)

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Article Astronomy & Astrophysics

Heavy quark spin symmetric molecular states from (D)over-bar()Σc() and other coupled channels in the light of the recent LHCb pentaquarks

C. W. Xiao et al.

PHYSICAL REVIEW D (2019)

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Article Astronomy & Astrophysics

Strong LHCb evidence supporting the existence of the hidden-charm molecular pentaquarks

Rui Chen et al.

PHYSICAL REVIEW D (2019)

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Article Astronomy & Astrophysics

Study of doubly heavy tetraquarks in lattice QCD

Parikshit Junnarkar et al.

PHYSICAL REVIEW D (2019)

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Article Astronomy & Astrophysics

Weak decays of the axial-vector tetraquark Tbb;(u)over-bar(d)over-bar-

S. S. Agaev et al.

PHYSICAL REVIEW D (2019)

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Article Astronomy & Astrophysics

Investigating the hidden-charm and hidden-bottom pentaquark resonances in scattering process

Hongxia Huang et al.

PHYSICAL REVIEW D (2019)

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Article Astronomy & Astrophysics

Hidden-bottom pentaquarks

Gang Yang et al.

PHYSICAL REVIEW D (2019)

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Article Astronomy & Astrophysics

Decays of Pc into J/ψN and ηcN with heavy quark spin symmetry

Shuntaro Sakai et al.

PHYSICAL REVIEW D (2019)

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Article Astronomy & Astrophysics

Confronting pentaquark photoproduction with new LHCb observations

Xu Cao et al.

PHYSICAL REVIEW D (2019)

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Article Astronomy & Astrophysics

Exotic bc(q)over-bar(q)over-bar four-quark states

T. F. Carames et al.

PHYSICAL REVIEW D (2019)

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Article Astronomy & Astrophysics

Hydrogen bond of QCD in doubly heavy baryons and tetraquarks

Luciano Maiani et al.

PHYSICAL REVIEW D (2019)

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Article Physics, Nuclear

Nucleon resonances with hidden charm in γp reactions

Jia-Jun Wu et al.

PHYSICAL REVIEW C (2019)

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Article Astronomy & Astrophysics

Nucleon-J/ψ and nucleon-ηc scattering in Pc pentaquark channels from lattice QCD

U. Skerbis et al.

PHYSICAL REVIEW D (2019)

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Article Astronomy & Astrophysics

Heavy pentaquark spectroscopy in the diquark model

Floriana Giannuzzi

PHYSICAL REVIEW D (2019)

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Article Astronomy & Astrophysics

Strong decays of the latest LHCb penta quark candidates in hadronic molecule pictures

Yong-Hui Lin et al.

PHYSICAL REVIEW D (2019)

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Article Astronomy & Astrophysics

Decay behaviors of possible Λc(c)over-bar states in hadronic molecule pictures

Chao-Wei Shen et al.

PHYSICAL REVIEW D (2019)

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Article Astronomy & Astrophysics

Where is the stable pentaquark?

Woosung Park et al.

PHYSICAL REVIEW D (2019)

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Article Astronomy & Astrophysics

X(3872) in an unquenched quark model

Yue Tan et al.

PHYSICAL REVIEW D (2019)

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Article Astronomy & Astrophysics

Some decay properties of hidden-charm pentaquarks as baryon-meson molecules

M. B. Voloshin

PHYSICAL REVIEW D (2019)

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Article Astronomy & Astrophysics

Double polarization observables in pentaquark photoproduction

D. Winney et al.

PHYSICAL REVIEW D (2019)

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Article Astronomy & Astrophysics

Possible interpretations of the Pc (4312), Pc (4440), and Pc (4457)

Hua-Xing Chen et al.

PHYSICAL REVIEW D (2019)

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Article Astronomy & Astrophysics

Search for Ω(2012) → KΞ(1530) → KπΞ at Belle

S. Jia et al.

PHYSICAL REVIEW D (2019)

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Article Astronomy & Astrophysics

Possible triple-charm molecular pentaquarks from ΞccD1/ΞccD2* interactions

Fu-Lai Wang et al.

PHYSICAL REVIEW D (2019)

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Article Astronomy & Astrophysics

One pion exchange and the quantum numbers of the Pc(4440) and Pc(4457) pentaquarks

Manuel Pavon Valderrama

PHYSICAL REVIEW D (2019)

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Hidden charm pentaquark states and Σc(D)over-bar(*) interaction in chiral perturbation theory

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Evidence for charm-bottom tetraquarks and the mass dependence of heavy-light tetraquark states from lattice QCD

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The S- and P-Wave Low-Lying Baryons in the Chiral Quark Model

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Stability of tetrons

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Scattering processes and resonances from lattice QCD

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Doubly charmed Ξcc molecular states from meson-baryon interaction

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Spectroscopy of the hidden-charm [qc] [(q)over-bar (c)over-bar] and [sc] [(s)over-bar (c)over-bar] tetraquarks in the relativized diquark model

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New spectrum of negative-parity doubly charmed baryons: Possibility of two quasistable states

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Light-meson masses in an unquenched quark model

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Heavy-flavored tetraquark states with the QQ(Q)over-bar(Q)over-bar configuration

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Strong decay modes (K)over-barΞ and (K)over-barΞπ of the Ω(2012) in the (K)over-barΞ(1530) and ηΩ molecular scenario

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Hadronic molecular assignment for the newly observed Ω* state

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Possible molecular pentaquark states with different spin and quark configurations

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Ω(2012) as a hadronic molecule

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PHYSICAL REVIEW D (2018)

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Measurement of the absolute branching fraction of D*s0 (2317)± → π0Ds±

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Possible interpretation of the newly observed Ω(2012) state

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Interpretation of the newly discovered Ω(2012)

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Hidden charmed states and multibody color flux-tube dynamics

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Scalar tetraquark state candidates: X(3915), X(4500) and X(4700)

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Observation of the Y (4140) structure in the J/ψφ mass spectrum in B± → J/ψφK± decays

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Masses and decay constants of the D*s0(2317) and Ds1(2460) from Nf = 2 lattice QCD close to the physical point

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A hidden-charm S =-1 pentaquark from the decay Λb into J/ψ ηΛ states

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Quarkonium Contribution to Meson Molecules

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Reanalysis of X (4140) as axial-vector tetraquark state with QCD sum rules

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(D)over-barΣc* and (D)over-bar*Σc interactions and the LHCb hidden-charmed pentaquarks

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PHYSICS LETTERS B (2016)

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PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS (2016)

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X(4140), X(4274), X(4500), and X(4700) in the relativized quark model

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Nonstrange and strange pentaquarks with hidden charm

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Pentaquark candidates Pc+ (4380) and Pc+ (4450) within the soliton picture of baryons

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Strong and radiative decays of the D s0 * (2317) and Ds1(2460)

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Ds mesons with DK and D * K scattering near threshold

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Search for the X(4140) state in B+ → J/ψφK+ decays with the D0 detector

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Charmed tetraquarks TCC and TCS from dynamical lattice QCD simulations

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Recent development of complex scaling method for many-body resonances and continua in light nuclei

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Spectrum of low-lying s3Q (Q)over-bar configurations with negative parity

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Light flavor and heavy quark spin symmetry in heavy meson molecules

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Ds0*(2317) Meson and D-Meson-Kaon Scattering from Lattice QCD

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Observation of a Charged Charmoniumlike Structure in e+e- → π+π- J/ψ at √s=4.26 GeV

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Excited spectroscopy of charmed mesons from lattice QCD

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Possible hidden-charm molecular baryons composed of an anti-charmed meson and a charmed baryon

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Study of qqqc(c)over-bar five quark system with three kinds of quark-quark hyperfine interaction

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The open-charm radiative and pionic decays of molecular charmonium Y(4274)

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Nucleon resonances with hidden charm in coupled-channels models

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Charmed and strange baryon resonances with heavy-quark spin symmetry

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Mixing of Ds1(2460) and Ds1(2536)

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Search for the X(4140) state in B+ → J/ψφK+ decays

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QCD quark cyclobutadiene and light tetraquark spectra

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Exotic mesons with hidden bottom near thresholds

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Light meson mass dependence of the positive-parity heavy-strange mesons

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ANALYSIS OF THE Y (4274) WITH QCD SUM RULES

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J/psi gamma and psi(2S)gamma decay modes of the X(3872)

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QCD sum rule calculation for the charmonium-like structures in the J/ψφ and J/ψω invariant mass spectra

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Relation between Tcc,bb and Xc,b from QCD

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Can Y(4140) be a c(c)over-bars(s)over-bar tetraquark?

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Coupled channel approach to the structure of the X(3872)

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Prediction of Narrow N* and Λ* Resonances with Hidden Charm above 4 GeV

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X(3872) and other possible heavy molecular states

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Analysis of the Y(4140) with QCD sum rules

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Quark models of dibaryon resonances in nucleon-nucleon scattering

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S-wave QQqq state in the constituent quark model

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Y(3940), Z(3930), and the X(4160) as dynamically generated resonances from the vector-vector interaction

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Strangeness-2 and-3 baryons in a constituent quark model

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D-wave baryon resonances with charm from coupled-channel dynamics

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Role of q(q)over-bar components in the N(1440) resonance

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Mass and KΛ coupling of the N*(1535) -: art. no. 042002

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QCD sum rules for the anticharmed pentaquark

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New states above charm threshold

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Coupled-channel model for charmonium levels and an option for X(3872) -: art. no. 034010

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Detailed analysis of the tetraquark potential and flip-flop in SU(3) lattice QCD

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Constituent quark model study of the meson spectra

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Baryonic resonances from baryon decuplet-meson octet interaction

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Two-hadron-irreducible QCD sum rule for pentaquark baryon

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Parity of Θ+ (1540) from QCD sum rules

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Open-charm meson resonances with negative strangeness

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Measurements of the DsJ resonance properties -: art. no. 012002

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Comment on the new Ds(*)+ π0 resonances

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Coupled-channel analysis of the D and Ds mesons -: art. no. 114013

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PHYSICAL REVIEW D (2004)

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Search for a narrow charmed baryonic state decaying to D*±p∓ in ep collisions at HERA

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Mass of D*sJ (2317) and coupled channel effect

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Stable heavy pentaquark states

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A realistic Baryon-Baryon interaction in the SU6 quark model and its applications to few-Baryon systems

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Short range structure in the X(3872)

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Evidence for a narrow anti-charmed baryon state

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PHYSICS LETTERS B (2004)

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Observation of a narrow charmoniumlike state in exclusive B±→K±π+π-J/ψ decays -: art. no. 262001

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Diquarks and exotic spectroscopy

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The spectrum of Ds mesons from lattice QCD

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Implications of a DK molecule at 2.32 GeV

T Barnes et al.

PHYSICAL REVIEW D (2003)

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Testing the nature of the D*sj (2317)+ and Ds J(2463)+ states using radiative transitions

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PHYSICS LETTERS B (2003)

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A new state of baryonium

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Description of the D*S(2320) resonance as the Dπ atom

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Observation of a narrow resonance of mass 2.46 GeV/c2 decaying to Ds+π0 and confirmation of the DsJ(2317) state -: art. no. 032002

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Observation of a near-threshold enhancement in the p(p)over-bar mass spectrum from radiative J/ψ→γp(p)over-bar deecays -: art. no. 022001

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Observed Ds(2317) and tentative D(2100-2300) as the charmed cousins of the light scalar nonet -: art. no. 012003

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PHYSICAL REVIEW LETTERS (2003)

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Observation of a narrow meson state decaying to Ds+π0 at a mass of 2.32 GeV/c2 -: art. no. 242001

B Aubert et al.

PHYSICAL REVIEW LETTERS (2003)

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Color SU(3) symmetry, confinement, stability, and clustering in the q2(q)over-bar2 system -: art. no. 114007

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Detailed analysis of the three-quark potential in SU(3) lattice QCD

TT Takahashi et al.

PHYSICAL REVIEW D (2002)

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d* dibaryon in the extended quark-delocalization, color-screening model -: art. no. 044003

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PHYSICAL REVIEW C (2002)

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Resonating-group study of baryon-baryon interactions for the complete baryon octet: NN interaction

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PHYSICAL REVIEW C (2002)

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Static three-quark SU(3) and four-quark SU(4) potentials

C Alexandrou et al.

PHYSICAL REVIEW D (2002)

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Interactions between octet baryons in the SU6 quark model -: art. no. 054001

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PHYSICAL REVIEW C (2001)

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The light-baryon spectrum in a relativistic quark model with instanton-induced quark forces -: The strange-baryon spectrum

U Löring et al.

EUROPEAN PHYSICAL JOURNAL A (2001)

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Three-quark potential in SU(3) lattice QCD

TT Takahashi et al.

PHYSICAL REVIEW LETTERS (2001)

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Casimir scaling of SU(3) static potentials -: art. no. 114503

GS Bali

PHYSICAL REVIEW D (2000)

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Static potentials and glueball masses from QCD simulations with Wilson sea quarks

GS Bali et al.

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Critique of a pion exchange model for interquark forces

N Isgur

PHYSICAL REVIEW D (2000)

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