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Related papers: Shear viscosity coefficient of magnetized QCD medi…

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We have studied the effect of the nonextensive Tsallis mechanism on the viscous properties of hot QCD matter in the presence of a strong magnetic field. The results are compared to the case of absence of magnetic field. The viscous…

High Energy Physics - Phenomenology · Physics 2024-02-07 Shubhalaxmi Rath , Sadhana Dash

We study the effect of a large magnetic field on the chiral and diquark condensates in a regime of moderately dense quark matter. Our focus is on the inter-dependence of the two condensates through non-perturbative quark mass and strong…

Nuclear Theory · Physics 2009-12-11 Tanumoy Mandal , Prashanth Jaikumar , Sanatan Digal

We investigate the effects of strong magnetic fields on the QCD phase structure at vanishing density by solving the gluon and quark gap equations, and by studying the dynamics of the quark scattering with the four-fermi coupling. The chiral…

High Energy Physics - Phenomenology · Physics 2015-05-14 Niklas Mueller , Jan M. Pawlowski

We review the main features of the QCD phase diagram description, at finite temperature, baryon density and in the presence of a magnetic field, from the point of view of effective models, whose main ingredient is chiral symmetry. We…

High Energy Physics - Phenomenology · Physics 2021-07-28 Alejandro Ayala , Luis A. Hernández , Marcelo Loewe , Cristian Villavicencio

In this work we make use of the Nambu-Jona-Lasinio model to investigate thermodynamic properties of magnetized three-flavor quark matter. The non-equilibrium Tsallis distribution is characterized by a dimensionless non-extensive parameter…

High Energy Physics - Phenomenology · Physics 2024-11-01 Jia Zhang , Xin-Jian Wen

We demonstrate that measurements of rapidity differential anisotropic flow in heavy ion collisions can constrain the temperature dependence of the shear viscosity to entropy density ratio {\eta}/s of QCD matter. Comparing results from…

Nuclear Theory · Physics 2016-06-01 Gabriel Denicol , Akihiko Monnai , Bjoern Schenke

Magnetic effects on chiral phase transition have been investigated in a modified soft-wall AdS/QCD model, in which the dilaton field is taken to be negative at the ultraviolet region and positive at the infrared region as in…

High Energy Physics - Theory · Physics 2017-03-08 Danning Li , Mei Huang , Yi Yang , Pei-Hung Yuan

We investigate the shear viscosity and butterfly velocity of a magnetic field-induced quantum phase transition in five dimensional Einstein-Maxwell-Chern-Simons theory, which is holographically dual to a class of strongly coupled quantum…

High Energy Physics - Theory · Physics 2025-10-21 Jun-Kun Zhao , Li Li

We investigate the chiral phase transition in the strong coupling lattice QCD at finite temperature and density with finite coupling effects. We adopt one species of staggered fermion, and develop an analytic formulation based on strong…

High Energy Physics - Lattice · Physics 2009-11-05 Kohtaroh Miura , Takashi Z. Nakano , Akira Ohnishi , Noboru Kawamoto

We have calculated the shear viscosity coefficient $\eta$ of the strongly interacting matter in the relaxation time approximation, where a quasi particle description of quarks with its dynamical mass is considered from NJL model. Due to the…

Nuclear Theory · Physics 2013-12-31 Sabyasachi Ghosh , Anirban Lahiri , Sarbani Majumder , Rajarshi Ray , Sanjay K. Ghosh

Because of relativistic off-center motion of the charged spectators and the local momentum-imbalance experienced by the participants, a huge magnetic field is likely generated in high-energy collisions. The influence of such short-lived…

High Energy Physics - Phenomenology · Physics 2017-01-09 Abdel Nasser Tawfik

The QCD phase diagram is studied, at finite magnetic field. Our calculations are based on the QCD effective model, the SU($3$) Polyakov linear sigma model (PLSM), in which the chiral symmetry is integrated in the hadron phase and in the…

High Energy Physics - Phenomenology · Physics 2021-07-05 Abdel Nasser Tawfik , Abdel Magied Diab

We study the behavior of strongly interacting matter under a uniform intense external magnetic field in the context of nonlocal extensions of the Polyakov-Nambu-Jona-Lasinio model. A detailed description of the formalism is presented,…

High Energy Physics - Phenomenology · Physics 2017-12-22 D. Gomez Dumm , M. F. Izzo Villafañe , S. Noguera , V. P. Pagura , N. N. Scoccola

The decrease of the chiral pseudocritical temperature $T_{\mathrm{pc}}$ with an applied strong magnetic field has been extensively investigated by various QCD low-energy effective models and lattice QCD at physical point. We find that this…

High Energy Physics - Phenomenology · Physics 2025-05-26 Yuanyuan Wang , Mamiya Kawaguchi , Shinya Matsuzaki , Akio Tomiya

Employing a field dependent three-momentum cut-off regularization technique, we study the phase structure and mesonic masses using the $2$-flavour Nambu-Jona Lasinio model at finite temperature and density in presence of arbitrary external…

Nuclear Theory · Physics 2019-07-10 Nilanjan Chaudhuri , Snigdha Ghosh , Sourav Sarkar , Pradip Roy

We have calculated the temperature dependence of shear $\eta$ and bulk $\zeta$ viscosities of quark matter due to quark-meson fluctuations. The quark thermal width originating from quantum fluctuations of quark-$\pi$ and quark-$\sigma$…

Nuclear Theory · Physics 2016-07-20 Sabyasachi Ghosh , Thiago C. Peixoto , Victor Roy , Fernando E. Serna , Gastão Krein

Shear viscosity becomes anisotropic in a rotating medium. It is discovered here that for rotating thermalized quantum systems such as those created in relativistic heavy-ion collisions, the coeffficient of shear viscosity breaks up into…

Nuclear Theory · Physics 2024-03-26 Cho Win Aung , Ashutosh Dwibedi , Jayanta Dey , Sabyasachi Ghosh

We have estimated parallel and perpendicular components of electrical conductivity and shear viscosity of quark matter at finite magnetic field and temperature by using their one-loop Kubo expressions in the framework of Nambu--Jona-Lasinio…

High Energy Physics - Phenomenology · Physics 2023-06-28 Aritra Bandyopadhyay , Snigdha Ghosh , Ricardo L. S. Farias , Sabyasachi Ghosh

We investigate the rotating quark matter in the three-flavor Nambu and Jona-Lasinio (NJL) model. The chiral condensation, spin polarization and number susceptibility of the light and strange quarks are carefully studied at finite…

High Energy Physics - Phenomenology · Physics 2021-11-24 Fei Sun , Anping Huang

Within a relaxation time approach using free nucleon-nucleon cross sections modified by the in-medium nucleon masses that are determined from an isospin- and momentum-dependent effective nucleon-nucleon interaction, we investigate the…

Nuclear Theory · Physics 2013-11-13 Jun Xu , Lie-Wen Chen , Che Ming Ko , Bao-An Li , Yu-Gang Ma