4.7 Article

Analysis on the composite nature of the light scalar mesons f0(980) and a0(980)

Related references

Note: Only part of the references are listed.
Article Physics, Nuclear

On the nature of near-threshold bound and virtual states

Inka Matuschek et al.

Summary: The method of uniquely characterizing physical states by their pole positions and residues is extended to shallow virtual states classification. It is argued that mainly non-molecular or compact states exist as bound states or resonances, but not as virtual states. The limitations of the mentioned classification scheme are also discussed.

EUROPEAN PHYSICAL JOURNAL A (2021)

Review Physics, Multidisciplinary

A review on partial-wave dynamics with chiral effective field theory and dispersion relation

De-Liang Yao et al.

Summary: The combination of chiral effective field theories and partial wave dynamics has been crucial in studying the strong interaction physics of low-lying resonances, providing important insights into the non-perturbative regime. Recent progress in this area, with emphasis on pi pi, pi K, pi N and (K) over barN scatterings, has been summarized in this review.

REPORTS ON PROGRESS IN PHYSICS (2021)

Article Physics, Multidisciplinary

Systematizing and addressing theory uncertainties of unitarization with the Inverse Amplitude Method

Alexandre Salas-Bernardez et al.

Summary: Effective Field Theories (EFTS) constructed as derivative expansions in powers of momentum provide a controllable approximation to strong dynamics, but their predictive power towards new physics at higher energy scales is limited. Unitarized chiral perturbation theory techniques have been devised to extend the reach of EFT, but uncertainties in these extensions have not been thoroughly addressed.

SCIPOST PHYSICS (2021)

Article Astronomy & Astrophysics

Insights into the nature of the Pcs(4459)

Meng-Lin Du et al.

Summary: The study found that Pcs(4459) has a clear molecular nature, with Xi c over line D* as the dominant component. The results support the existence of two resonances with different spins in the energy region of Pcs(4459).

PHYSICAL REVIEW D (2021)

Article Astronomy & Astrophysics

Unveiling the K1(1270) double-pole structure in the (B)over-bar → J/ψρ(K)over-bar and (B)over-bar → J/ψ(K)over-bar*π decays

J. M. Dias et al.

Summary: By theoretically investigating the double-pole structure of the K-1 (1270) resonance in pseudoscalar-vector meson spectra, this study addresses the final-state interactions between the P and V mesons in (B) over bar -> J/psi rho(K) over bar and (B) over bar -> J/psi(K) over bar*pi weak decays. The dynamically generated K-1 (1270) resonance through these interactions influences the shape of invariant mass distributions, providing insights for future experiments probing PV spectra in these decays.

PHYSICAL REVIEW D (2021)

Article Astronomy & Astrophysics

Unified description of the hidden-charm tetraquark states Zcs(3985), Zc(3900), and X(4020)

Zhi-Hui Guo et al.

Summary: In this study, the newly observed hidden-charm tetraquark state Z(cs)(3985), together with Z(c)(3900) and X(4020), are investigated using a combined theoretical framework. Results from elastic effective-range-expansion method and coupled-channel formalism provide insights into the properties of these exotic states and predictions for their decay widths.

PHYSICAL REVIEW D (2021)

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)

Article Astronomy & Astrophysics

Evidence of the four-quark nature of f0(980) and f0(500)

N. N. Achasov et al.

Summary: The study suggests that light scalar mesons may have an exotic four-quark nature and further expansion of their model validity area is significant.

PHYSICAL REVIEW D (2021)

Review Physics, Multidisciplinary

REVIEW OF PARTICLE PHYSICS

P. A. Zyla et al.

PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS (2020)

Article Astronomy & Astrophysics

Study the molecular nature of σ, f0(980), and a0(980) states

Hiwa A. Ahmed et al.

PHYSICAL REVIEW D (2020)

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)

Article Physics, Particles & Fields

Semileptonic B and Bs decays involving scalar and axial-vector mesons

Xian-Wei Kang et al.

EUROPEAN PHYSICAL JOURNAL C (2018)

Article Physics, Particles & Fields

Branching fractions of semileptonic D and Ds decays from the covariant light-front quark model

Hai-Yang Cheng et al.

EUROPEAN PHYSICAL JOURNAL C (2017)

Correction Physics, Particles & Fields

Branching fractions of semileptonic D and Ds decays from the covariant light-front quark model (vol 77, 587, 2017)

Hai-Yang Cheng et al.

EUROPEAN PHYSICAL JOURNAL C (2017)

Article Physics, Particles & Fields

Different pole structures in line shapes of the X(3872)

Xian-Wei Kang et al.

EUROPEAN PHYSICAL JOURNAL C (2017)

Article Astronomy & Astrophysics

An a0 resonance in strongly coupled πη, K(K)over-bar scattering from lattice QCD

Jozef J. Dudek et al.

PHYSICAL REVIEW D (2016)

Article Astronomy & Astrophysics

Probabilistic interpretation of compositeness relation for resonances

Zhi-Hui Guo et al.

PHYSICAL REVIEW D (2016)

Article Astronomy & Astrophysics

General considerations on the nature of Zb(10610) and Zb(10650) from their pole positions

Xian-Wei Kang et al.

PHYSICAL REVIEW D (2016)

Article Astronomy & Astrophysics

Testing the χc1 p composite nature of the Pc(4450)

Ulf-G. Meissner et al.

PHYSICS LETTERS B (2015)

Article Physics, Multidisciplinary

Comprehensive analysis of the wave function of a hadronic resonance and its compositeness

Takayasu Sekihara et al.

PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS (2015)

Article Physics, Nuclear

Meson-baryon components in the states of the baryon decuplet

F. Aceti et al.

EUROPEAN PHYSICAL JOURNAL A (2014)

Article Astronomy & Astrophysics

Nonordinary light meson couplings and the 1/Nc expansion

Thomas Cohen et al.

PHYSICAL REVIEW D (2014)

Article Astronomy & Astrophysics

decays and the extraction of |VERBAR;

Xian-Wei Kang et al.

PHYSICAL REVIEW D (2014)

Article Astronomy & Astrophysics

Comprehensive amplitude analysis of γγ → π+π-,π0π0 and (K)over-barK below 1.5 GeV

Ling-Yun Dai et al.

PHYSICAL REVIEW D (2014)

Article Physics, Multidisciplinary

Pole Analysis of Unitarized One Loop χ PT Amplitudes - A Triple Channel Study

Dai Ling-Yun et al.

COMMUNICATIONS IN THEORETICAL PHYSICS (2012)

Article Physics, Multidisciplinary

Pole Analysis on Unitarized SU(3) x SU(3) One Loop χPT Amplitudes

Dai Ling-Yun et al.

COMMUNICATIONS IN THEORETICAL PHYSICS (2012)

Article Physics, Nuclear

Compositeness of dynamically generated states in a chiral unitary approach

Tetsuo Hyodo et al.

PHYSICAL REVIEW C (2012)

Article Astronomy & Astrophysics

Chiral dynamics in U(3) unitary chiral perturbation theory

Zhi-Hui Guo et al.

PHYSICS LETTERS B (2012)

Article Physics, Particles & Fields

Couplings of light I=0 scalar mesons to simple operators in the complex plane

B. Moussallam

EUROPEAN PHYSICAL JOURNAL C (2011)

Article Astronomy & Astrophysics

Resonances from meson-meson scattering in U(3) χPT

Zhi-Hui Guo et al.

PHYSICAL REVIEW D (2011)

Article Physics, Multidisciplinary

Precise Determination of the f0(600) and f0(980) Pole Parameters from a Dispersive Data Analysis

R. Garcia-Martin et al.

PHYSICAL REVIEW LETTERS (2011)

Article Physics, Nuclear

Interplay of quark and meson degrees of freedom in a near-threshold resonance

V. Baru et al.

EUROPEAN PHYSICAL JOURNAL A (2010)

Article Astronomy & Astrophysics

The φ(1020)a0(980) S-wave scattering and hints for a new vector-isovector resonance

L. Alvarez-Ruso et al.

PHYSICAL REVIEW D (2010)

Article Astronomy & Astrophysics

Dynamical generation of pseudoscalar resonances

M. Albaladejo et al.

PHYSICAL REVIEW D (2010)

Article Astronomy & Astrophysics

φ(1020) f0(980) S-wave scattering and the Y(2175) resonance

L. Alvarez-Ruso et al.

PHYSICAL REVIEW D (2009)

Article Multidisciplinary Sciences

Tetraquark Spectroscopy: A Symmetry Analysis

Javier Vijande et al.

Symmetry-Basel (2009)

Review Physics, Nuclear

Two photons into π0 π0

J. A. Oller et al.

EUROPEAN PHYSICAL JOURNAL A (2008)

Article Physics, Multidisciplinary

Identification of a Scalar Glueball

M. Albaladejo et al.

PHYSICAL REVIEW LETTERS (2008)

Article Astronomy & Astrophysics

Improved dispersion relations for γγ → π0 π0

Jose A. Oller et al.

PHYSICS LETTERS B (2008)

Article Astronomy & Astrophysics

A theory of scalar mesons

G. 't Hooft et al.

PHYSICS LETTERS B (2008)

Article Physics, Nuclear

Non-perturbative study of the light pseudoscalar masses in chiral dynamics

J. A. Oller et al.

EUROPEAN PHYSICAL JOURNAL A (2007)

Review Physics, Multidisciplinary

Glueballs, hybrids, multiquarks - Experimental facts versus QCD inspired concepts

Eberhard Klempt et al.

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS (2007)

Article Astronomy & Astrophysics

Investigation of a0-f0 mixing

Christoph Hanhart et al.

PHYSICAL REVIEW D (2007)

Article Astronomy & Astrophysics

Scalar radius of the pion and zeros in the form factor

Jose A. Oller et al.

PHYSICS LETTERS B (2007)

Correction Astronomy & Astrophysics

Meson-meson interactions in a nonperturbative chiral approach (vol 59, art no 074001, 1999)

J. A. Oller et al.

PHYSICAL REVIEW D (2007)

Article Physics, Multidisciplinary

Nature of the f0(600) scalar meson from its Nc dependence at two loops in unitarized chiral perturbation theory

J. R. Pelaez et al.

PHYSICAL REVIEW LETTERS (2006)

Article Astronomy & Astrophysics

Dalitz plot analysis of the decay B±→K±K±K∓

B. Aubert et al.

PHYSICAL REVIEW D (2006)

Article Astronomy & Astrophysics

Partial wave analysis of χc0→π+π-K+K- -: art. no. 092002

M Ablikim et al.

PHYSICAL REVIEW D (2005)

Article Astronomy & Astrophysics

Evidence that the a0(980) and f0(980) are not elementary particles

V Baru et al.

PHYSICS LETTERS B (2004)

Article Astronomy & Astrophysics

A chiral (q)over-bar(q)over-barqq nonet?

M Napsuciale et al.

PHYSICS LETTERS B (2004)

Article Astronomy & Astrophysics

Chiral model for (q)over-barq and (qq)over-barqq mesons -: art. no. 094043

M Napsuciale et al.

PHYSICAL REVIEW D (2004)

Article Physics, Nuclear

The mixing angle of the lightest scalar nonet

JA Oller

NUCLEAR PHYSICS A (2003)

Review Physics, Nuclear

Scalar mesons above and below 1 GeV

FE Close et al.

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS (2002)

Article Physics, Nuclear

Aspects of a0-f0 mixing in the reaction (p)over-right-arrown→da0 -: art. no. 015207

AE Kudryavtsev et al.

PHYSICAL REVIEW C (2002)

Article Astronomy & Astrophysics

Unitarized pseudoscalar meson scattering amplitudes from three flavor linear sigma models

D Black et al.

PHYSICAL REVIEW D (2001)

Article Physics, Particles & Fields

Scalar mesons in QCD

S Narison

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS (2001)

Article Astronomy & Astrophysics

φ→π+π- decay within a chiral unitary approach -: art. no. 114017

JA Oller et al.

PHYSICAL REVIEW D (2000)

Article Physics, Particles & Fields

Large Nc in chiral perturbation theory

R Kaiser et al.

EUROPEAN PHYSICAL JOURNAL C (2000)

Article Physics, Particles & Fields

Nf dependence of the quark condensate from a chiral sum rule

B Moussallam

EUROPEAN PHYSICAL JOURNAL C (2000)