Physics, Nuclear

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Article Physics, Nuclear

Shadows and gravitational weak lensing by the Schwarzschild black hole in the string cloud background with quintessential field

G. Mustafa, Farruh Atamurotov, Ibrar Hussain, Sanjar Shaymatov, Ali Ovgun

Summary: In this study, we observe that, in the presence of the string cloud parameter a and the quintessence parameter gamma, by using the equation of state parameter

CHINESE PHYSICS C (2022)

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Article Astronomy & Astrophysics

Cosmology in f (R, Lm) gravity

Lakhan Jaybhaye, Raja Solanki, Sanjay Mandal, P. K. Sahoo

Summary: This letter investigates the cosmic expansion scenario in the framework of f (R, L-m) gravity theory. The non-linear f (R, L-m) model is considered, and the motion equations and exact solution for the flat FLRW universe are derived. The best fit ranges of model parameters are estimated using updated H(z) and Pantheon datasets. The physical behavior of density, deceleration parameter, and Om diagnostic parameter are analyzed, revealing a transition from deceleration to acceleration phases and quintessence type behavior. The stability of the cosmological model is also examined under observational constraint. The f (R, L-m) cosmological model agrees with recent observational studies and describes late time cosmic acceleration effectively.

PHYSICS LETTERS B (2022)

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Article Physics, Nuclear

Multi-reference many-body perturbation theory for nuclei

M. Frosini, T. Duguet, J-P Ebran, B. Bally, H. Hergert, T. R. Rodriguez, R. Roth, J. M. Yao, V Soma

Summary: This article presents the first realistic results of a novel multi-reference perturbation theory (PGCM-PT) that can accurately describe the ground and low-lying excited states of complex nuclei within a symmetry-conserving scheme. The study demonstrates that PGCM-PT(2) can reproduce the exact binding energies of closed and open-shell nuclei with high accuracy and can capture essential corrections to low-lying excitation energies by including dynamical correlations.

EUROPEAN PHYSICAL JOURNAL A (2022)

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Article Physics, Nuclear

Shadow and photon sphere of black hole in clouds of strings and quintessence

Aoyun He, Jun Tao, Yadong Xue, Lingkai Zhang

Summary: This study investigates the influence of string cloud model and quintessence on the specific intensity near a black hole using different impact parameters. The research also explores the impact of static and infalling spherical accretions on the profile and specific intensity of shadows.

CHINESE PHYSICS C (2022)

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Article Astronomy & Astrophysics

QNMs of branes, BHs and fuzzballs from quantum SW geometries

Massimo Bianchi, Dario Consoli, Alfredo Grillo, Francisco Morales

Summary: Quantum Normal Modes (QNMs) govern the linear response to perturbations of black holes, D-branes, and fuzzballs, as well as the gravitational wave signals in the ring-down phase of binary mergers. There is a remarkable connection between QNMs of neutral black holes in 4 dimensions and quantum Seiberg-Witten geometries describing the dynamics of N=2 Super Yang-Mills (SYM) theories. By extending the gauge/gravity dictionary, a wide range of gravity backgrounds related to N=2 SYM with a single SU(2) gauge group and fundamental matter are explored, including charged and rotating black holes, D3-branes, D1D5 'circular' fuzzballs, and smooth horizonless geometries. All examples share the common feature of photon-spheres associated with degenerations of classical elliptic Seiberg-Witten geometries, where a cycle pinches to zero size. Quantum effects resolve the singular geometry and result in a spectrum of quantized energies labeled by the overtone number n.

PHYSICS LETTERS B (2022)

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Article Astronomy & Astrophysics

Compatibility of muon g-2, Wmass anomaly in type-X 2HDM

Jongkuk Kim

Summary: The recently reported measurements of the W boson mass by the CDF II Collaboration deviate from the prediction of the Standard Model at a significance level of 7 sigma. Additionally, the recent measurement of the muon magnetic moment at FNAL shows a deviation of 4.2 sigma. To address these anomalies, researchers explore the type-X two Higgs doublet model (2HDM) and analyze the parameter space consistent with various experimental results.

PHYSICS LETTERS B (2022)

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Review Physics, Nuclear

Studying the QGP with Jets at the LHC and RHIC

Leticia Cunqueiro, Anne M. Sickles

Summary: This article reviews the current status of jet measurements in heavy-ion collisions at the LHC and RHIC, discussing how these measurements provide information about the quark-gluon plasma, and exploring future opportunities at both RHIC and the LHC.

PROGRESS IN PARTICLE AND NUCLEAR PHYSICS (2022)

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Article Astronomy & Astrophysics

Nucleon helicity generalized parton distribution at physical pion mass from lattice QCD

Huey-Wen Lin

Summary: In this study, the first lattice calculation of the nucleon isovector helicity generalized parton distributions (GPDs) at physical pion mass is presented. These calculations provide insights into the fundamental properties of the nucleon, such as its mass and spin, which arise from the underlying quark and gluon degrees of freedom.

PHYSICS LETTERS B (2022)

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Article Instruments & Instrumentation

Experimental evaluation of gamma radiation shielding characteristics of Polyvinyl Alcohol/Tungsten oxide composite: A comparison study of micro and nano sizes of the fillers

Mohammad Amin Hosseini, Shahryar Malekie, Farideh Kazemi

Summary: In this experimental work, Polyvinyl Alcohol-Tungsten oxide micro-and nanocomposites were fabricated in various weight percentages. The dispersion state of the inclusions into the polymeric matrix was studied through the SEM analyzes. It was shown that increasing the concentration of the WO3 fillers in the PVA matrix increased the attenuation coefficients of the composites significantly.

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT (2022)

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Article Physics, Nuclear

Multimessenger heavy-ion collision physics

Charles Gale, Jean-Francois Paquet, Bjorn Schenke, Chun Shen

Summary: This work investigates the production of direct photons and hadrons in relativistic nuclear collisions, covering the entire evolution from the initial instants to the final moments. A hybrid model is used to describe different stages of relativistic heavy-ion collisions, including the collision of nuclei, pre-equilibrium phase, relativistic viscous hydrodynamics, and hadronic afterburner. The study highlights the impact of the pre-equilibrium phase on photonic and hadronic observables, and explores the potential of photon observables to reveal the chemical equilibration time. Additionally, small collision systems are considered to probe the formation of quark-gluon plasma using hadronic and electromagnetic observables.

PHYSICAL REVIEW C (2022)

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Article Astronomy & Astrophysics

Effect of the magnetic charge on weak deflection angle and greybody bound of the black hole in Einstein-Gauss-Bonnet gravity

Wajiha Javed, Muhammad Aqib, Ali Ovgun

Summary: The objective of this paper is to analyze the weak deflection angle of Einstein-Gauss-Bonnet gravity in the presence of a plasma medium. The Gibbons and Werner approach is implemented, and the Gauss-Bonnet theorem is used to acquire the resulting deflection angle of a photon's ray in the weak field limit. The behavior of plasma and non-plasma mediums on the deflection of the photon's ray in the framework of Einstein-Gauss-Bonnet gravity is illustrated.

PHYSICS LETTERS B (2022)

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Article Physics, Nuclear

Evolution of Λ polarization in the hadronic phase of heavy-ion collisions

Yifeng Sun, Zhen Zhang, Che Ming Ko, Wenbin Zhao

Summary: Using a hybrid model, the study investigates the spin polarizations of Lambda hyperons in Au+Au collisions as a function of the freeze-out temperature. The results show that the spin polarizations of Lambda hyperons decrease as the freeze-out temperature decreases. This study highlights the importance of considering the evolution of spin degrees of freedom in relativistic heavy-ion collisions.

PHYSICAL REVIEW C (2022)

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Article Physics, Nuclear

First experiment at the Super Heavy Element Factory: High cross section of 288Mc in the 243Am+48Ca reaction and identification of the new isotope 264Lr

Yu. Ts. Oganessian, V. K. Utyonkov, N. D. Kovrizhnykh, F. Sh. Abdullin, S. N. Dmitriev, D. Ibadullayev, M. G. Itkis, D. A. Kuznetsov, O. V. Petrushkin, A. V. Podshibiakin, A. N. Polyakov, A. G. Popeko, R. N. Sagaidak, L. Schlattauer, I. V. Shirokovski, V. D. Shubin, M. V. Shumeiko, D. I. Solovyev, Yu. S. Tsyganov, A. A. Voinov, V. G. Subbotin, A. Yu. Bodrov, A. V. Sabel'nikov, A. V. Khalkin, V. B. Zlokazov, K. P. Rykaczewski, T. T. King, J. B. Roberto, N. T. Brewer, R. K. Grzywacz, Z. G. Gan, Z. Y. Zhang, M. H. Huang, H. B. Yang

Summary: Results of the first experiment on the synthesis of Mc isotopes were presented, where 55 new decay chains and several new isotopes were detected. The alpha decay of 268Db and the identification of 264Lr were reported for the first time.

PHYSICAL REVIEW C (2022)

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Article Astronomy & Astrophysics

Light nuclei collectivity from √sNN=3 GeV Au+Au collisions at RHIC

M. S. Abdallah, B. E. Aboona, J. Adam, L. Adamczyk, J. R. Adams, J. K. Adkins, G. Agakishiev, I Aggarwal, M. M. Aggarwal, Z. Ahammed, A. Aitbaev, I Alekseev, D. M. Anderson, A. Aparin, E. C. Aschenauer, M. U. Ashraf, F. G. Atetalla, G. S. Averichev, V Bairathi, W. Baker, J. G. Ball Cap, K. Barish, A. Behera, R. Bellwied, P. Bhagat, A. Bhasin, J. Bielcik, J. Bielcikova, I. G. Bordyuzhin, J. D. Brandenburg, A. Brandin, X. Z. Cai, H. Caines, M. Calderon de la Barca Sanchez, D. Cebra, I Chakaberia, P. Chaloupka, B. K. Chan, F-H Chang, Z. Chang, A. Chatterjee, S. Chattopadhyay, D. Chen, J. Chen, J. H. Chen, X. Chen, Z. Chen, J. Cheng, S. Choudhury, W. Christie, X. Chu, H. J. Crawford, M. Csanad, M. Daugherity, T. G. Dedovich, I. M. Deppner, A. A. Derevschikov, A. Dhamija, L. Di Carlo, L. Didenko, P. Dixit, X. Dong, J. L. Drachenberg, E. Duckworth, J. C. Dunlop, J. Engelage, G. Eppley, S. Esumi, O. Evdokimov, A. Ewigleben, O. Eyser, R. Fatemi, F. M. Fawzi, S. Fazio, C. J. Feng, Y. Feng, E. Finch, Y. Fisyak, A. Francisco, C. Fu, C. A. Gagliardi, T. Galatyuk, F. Geurts, N. Ghimire, A. Gibson, K. Gopal, X. Gou, D. Grosnick, A. Gupta, W. Guryn, A. Hamed, Y. Han, S. Harabasz, M. D. Harasty, J. W. Harris, H. Harrison, S. He, W. He, Y. He, S. Heppelmann, S. Heppelmann, N. Herrmann, E. Hoffman, L. Holub, C. Hu, Q. Hu, Y. Hu, H. Huang, H. Z. Huang, S. L. Huang, T. Huang, X. Huang, Y. Huang, T. J. Humanic, D. Isenhower, M. Isshiki, W. W. Jacobs, C. Jena, A. Jentsch, Y. Ji, J. Jia, K. Jiang, X. Ju, E. G. Judd, S. Kabana, M. L. Kabir, S. Kagamaster, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, H. W. Ke, D. Keane, A. Kechechyan, M. Kelsey, Y. Khyzhniak, B. Kimelman, D. Kincses, I Kisel, A. Kiselev, A. G. Knospe, H. S. Ko, L. Kochenda, A. Korobitsin, L. K. Kosarzewski, L. Kramarik, P. Kravtsov, L. Kumar, S. Kumar, R. Kunnawalkam Elayavalli, J. H. Kwasizur, R. Lacey, S. Lan, J. M. Landgraf, J. Lauret, A. Lebedev, R. Lednicky, J. H. Lee, Y. H. Leung, N. Lewis, C. Li, C. Li, W. Li, X. Li, Y. Li, X. Liang, Y. Liang, R. Licenik, T. Lin, Y. Lin, M. A. Lisa, F. Liu, H. Liu, H. Liu, P. Liu, T. Liu, X. Liu, Y. Liu, Z. Liu, T. Ljubicic, W. J. Llope, R. S. Longacre, E. Loyd, T. Lu, N. S. Lukow, X. F. Luo, L. Ma, R. Ma, Y. G. Ma, N. Magdy, D. Mallick, S. L. Manukhov, S. Margetis, C. Markert, H. S. Matis, J. A. Mazer, N. G. Minaev, S. Mioduszewski, B. Mohanty, M. M. Mondal, I Mooney, D. A. Morozov, A. Mukherjee, M. Nagy, J. D. Nam, Md Nasim, K. Nayak, D. Neff, J. M. Nelson, D. B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, R. Nishitani, L. Nogach, T. Nonaka, A. S. Nunes, G. Odyniec, A. Ogawa, S. Oh, V. A. Okorokov, K. Okubo, B. S. Page, R. Pak, J. Pan, A. Pandav, A. K. Pandey, Y. Panebratsev, P. Parfenov, A. Paul, B. Pawlik, D. Pawlowska, C. Perkins, L. S. Pinsky, J. Pluta, B. R. Pokhrel, J. Porter, M. Posik, V Prozorova, N. K. Pruthi, M. Przybycien, J. Putschke, H. Qiu, A. Quintero, C. Racz, S. K. Radhakrishnan, N. Raha, R. L. Ray, R. Reed, H. G. Ritter, M. Robotkova, O. Rogachevskiy, J. L. Romero, D. Roy, L. Ruan, A. K. Sahoo, N. R. Sahoo, H. Sako, S. Salur, E. Samigullin, J. Sandweiss, S. Sato, W. B. Schmidke, N. Schmitz, B. R. Schweid, F. Seck, J. Seger, R. Seto, P. Seyboth, N. Shah, E. Shahaliev, P. Shanmuganathan, M. Shao, T. Shao, R. Sharma, A. Sheikh, D. Y. Shen, S. S. Shi, Y. Shi, Q. Y. Shou, E. P. Sichtermann, R. Sikora, J. Singh, S. Singha, P. Sinha, M. J. Skoby, N. Smirnov, Y. Soehngen, W. Solyst, Y. Song, H. M. Spinka, B. Srivastava, T. D. S. Stanislaus, M. Stefaniak, D. J. Stewart, M. Strikhanov, B. Stringfellow, A. A. P. Suaide, M. Sumbera, B. Summa, X. M. Sun, X. Sun, Y. Sun, Y. Sun, B. Surrow, D. N. Svirida, Z. W. Sweger, P. Szymanski, A. H. Tang, Z. Tang, A. Taranenko, T. Tarnowsky, J. H. Thomas, A. R. Timmins, D. Tlusty, T. Todoroki, M. Tokarev, C. A. Tomkiel, S. Trentalange, R. E. Tribble, P. Tribedy, S. K. Tripathy, T. Truhlar, B. A. Trzeciak, O. D. Tsai, Z. Tu, T. Ullrich, D. G. Underwood, I Upsal, G. Van Buren, J. Vanek, A. N. Vasiliev, I Vassiliev, V. Verkest, F. Videbaek, S. Vokal, S. A. Voloshin, F. Wang, G. Wang, J. S. Wang, P. Wang, X. Wang, Y. Wang, Y. Wang, Z. Wang, J. C. Webb, P. C. Weidenkaff, G. D. Westfall, H. Wieman, S. W. Wissink, R. Witt, J. Wu, J. Wu, Y. Wu, B. Xi, Z. G. Xiao, G. Xie, W. Xie, H. Xu, N. Xu, Q. H. Xu, Y. Xu, Z. Xu, Z. Xu, G. Yan, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Ye, Z. Ye, L. Yi, K. Yip, Y. Yu, H. Zbroszczyk, W. Zha, C. Zhang, D. Zhang, J. Zhang, S. Zhang, S. Zhang, Y. Zhang, Y. Zhang, Y. Zhang, Z. J. Zhang, Z. Zhang, Z. Zhang, F. Zhao, J. Zhao, M. Zhao, C. Zhou, Y. Zhou, X. Zhu, M. Zurek, M. Zyzak

Summary: This study investigates partonic collectivity in high-energy heavy-ion collisions, specifically focusing on the constituent quark number scaling of elliptic flow anisotropy for identified hadrons. Measurements of the first- and second-order azimuthal anisotropic parameters of light nuclei produced in 3 GeV Au+Au collisions are reported, revealing an atomic mass number scaling in the first-order parameter and a strong rapidity dependence in the second-order parameter. Calculations by the Jet AA Microscopic Transport Model (JAM) suggest that baryonic interactions dominate the collective dynamics in these collisions.

PHYSICS LETTERS B (2022)

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Article Astronomy & Astrophysics

Baryon asymmetry from the generalized uncertainty principle

Saurya Das, Mitja Fridman, Gaetano Lambiase, Elias C. Vagenas

Summary: The paper discusses the unexplained baryon asymmetry in the Universe and proposes a new explanation framework that satisfies the Sakharov conditions and introduces the Generalized Uncertainty Principle and holographic principle to address this issue.

PHYSICS LETTERS B (2022)

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Article Astronomy & Astrophysics

Topology of Born-Infeld AdS black holes in 4D novel Einstein-Gauss-Bonnet gravity

Pavan Kumar Yerra, Chandrasekhar Bhamidipati

Summary: This study investigates the topological classification of critical points of black holes in 4D Einstein-Gauss-Bonnet gravity coupled to Born-Infeld theory. Born-Infeld corrections affect the topological charge of critical points of the charged AdS black hole system independently, while Gauss-Bonnet corrections do not. However, the topological charge of the Einstein-Gauss-Bonnet theory remains unchanged in the presence of Born-Infeld coupling in the combined system.

PHYSICS LETTERS B (2022)

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Article Astronomy & Astrophysics

Reconstruction of ΛCDM universe in f (Q) gravity

Gaurav N. Gadbail, Sanjay Mandal, P. K. Sahoo

Summary: In this article, the authors present explicit reconstructions for f(Q) gravity based on the background of FLRW evolution, revealing the relationship between more general functions of Q and the Lambda CDM expansion history. The study demonstrates that adding extra degrees of freedom to the matter sector is necessary to achieve the desired behavior of the scale factor, and provides a cosmological reconstruction for modified f(Q) gravity based on e-folding. Furthermore, the authors reconstruct the well-known cosmological evolution for specific examples of Lambda CDM cosmology.

PHYSICS LETTERS B (2022)

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Article Astronomy & Astrophysics

NANOGrav signal from the end of inflation and the LIGO mass and heavier primordial black holes

Amjad Ashoorioon, Kazem Rezazadeh, Abasalt Rostami

Summary: The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) has recently released 12.5-year pulsar timing array data, reporting evidence for the detection of a stochastic gravitational wave background (SGWB) for the first time. The study investigates the possibility of generating the observed signal through a first-order phase transition during the end of double-field inflation.

PHYSICS LETTERS B (2022)

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Article Physics, Nuclear

Pseudorapidity dependence of the pT spectra of charged hadrons in pp collisions at √S=0.9 and 2.36 TeV

Pei-Pin Yang, M. Ajaz, M. Waqas, Fu-Hu Liu, M. K. Suleymanov

Summary: This study compares the predictions of different Monte Carlo event generators (including HUING, Pythia, and QGSJETII) with experimental data obtained from the CMS Collaboration at CERN. Results show that Pythia reproduces the experimental data more accurately in most cases, while HUING and QGSJETII can only reproduce the data within a limited range. Additionally, parameter values relevant to the study of bulk properties of hadronic matter at high energy were extracted using two analytic functions, and it was found that the values extracted from the RUING and Pythia models are closer to the experimental data than those extracted from the QGSJETII model.

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS (2022)

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Article Nuclear Science & Technology

Commissioning of a high-resolution collinear laser spectroscopy apparatus with a laser ablation ion source

Shi-Wei Bai, Xiao-Fei Yang, Shu-Jing Wang, Yong-Chao Liu, Peng Zhang, Yin-Shen Liu, Han-Rui Hu, Yang-Fan Guo, Jin Wang, Ze-Yu Du, Zhou Yan, Yun-Kai Zhang, Yan-Lin Ye, Qi-Te Li, Yu-Cheng Ge, Chuang-Ye He

Summary: Collinear laser spectroscopy is a powerful tool for studying nuclear properties, and our developed apparatus successfully measured the optical spectra of Ca isotopes with excellent agreement compared to literature values. The system is now ready for use at radioactive ion beam facilities and paves the way for further development of higher-sensitivity collinear resonance ionization spectroscopy techniques.

NUCLEAR SCIENCE AND TECHNIQUES (2022)

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