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Related papers: Quark matter under strong magnetic fields

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We investigate the thermodynamic properties of cold magnetized quark matter within a nonlocal Nambu Jona Lasinio (nlNJL) model. Our study addresses the equation of state, anisotropic pressures, quark density, speed of sound, and magnetic…

High Energy Physics - Phenomenology · Physics 2025-11-11 S. A. Ferraris , J. P. Carlomagno , G. A. Contrera , A. G. Grunfeld

In the present work we use the mean field approximation to investigate quark matter described by the su(3) Nambu-Jona-Lasinio model subject to a strong magnetic field. We consider two cases: pure quark matter and quark matter in…

Nuclear Theory · Physics 2009-12-31 D. P. Menezes , M. Benghi Pinto , S. S. Avancini , C. Providencia

In the present work we use the large-$N_c$ approximation to investigate quark matter described by the SU(2) Nambu--Jona-Lasinio model subject to a strong magnetic field. The Landau levels are filled in such a way that usual kinks appear in…

Nuclear Theory · Physics 2009-04-28 D. P. Menezes , M. Benghi Pinto , S. S. Avancini , A. Perez Martinez , C. Providencia

The phase structure of magnetized cold quark matter is analyzed in the framework of the two-flavor Nambu-Jona-Lasinio models paying special attention to its dependence on the model parameters as different values within the phenomenological…

High Energy Physics - Phenomenology · Physics 2013-11-20 Pablo G. Allen , Norberto N. Scoccola

In this article, we calculate the magnetization and other thermodynamical quantities for strongly magnetized quark matter within the Nambu-Jona-Lasinio model at zero temperature. We assume two scenarios, chemically equilibrated charge…

High Energy Physics - Phenomenology · Physics 2018-04-04 Sidney S. Avancini , Veronica Dexheimer , Ricardo L. S. Farias , Varese S. Timóteo

We compare the mass-radius relationship of strange stars obtained in two theoretical frameworks describing the color-flavor-locking state of dense quark matter: The semi-empirical MIT model and a self-consistent approach using the…

Nuclear Theory · Physics 2013-11-21 L Paulucci , E J Ferrer , J E Horvath , V de la Incera

The chiral model is used to describe quark matter under strong magnetic fields and compared to other models, the MIT bag model and the two flavors Nambu-Jona-Lasinio model. The effect of vacuum corrections due to the magnetic field is…

Nuclear Theory · Physics 2011-05-13 Aziz Rabhi , Constança Providência

The compressibility of magnetized quark matter is investigated in the SU(2) NJL model. The increases of the chemical potential and the temperature can reduce the compressibility, and lead to the much stiffer equation of state. The variation…

High Energy Physics - Phenomenology · Physics 2021-12-22 Li Yang , Xin-Jian Wen

We investigate the chiral phase transition within a sphere under a uniform background magnetic field. The Nambu--Jona-Lasinio (NJL) model is employed and the MIT boundary condition is imposed for the spherical confinement. Using the wave…

Nuclear Theory · Physics 2024-01-29 Bing-Jun Zuo , Zheng Zhang , Chao Shi , Yong-Feng Huang

Strong transient magnetic fields are generated in non-central relativistic heavy-ion collisions. These fields induce anisotropy within the strongly interacting medium that, in principle, can affect the thermodynamic properties of the…

High Energy Physics - Phenomenology · Physics 2024-04-16 Kangkan Goswami , Dushmanta Sahu , Jayanta Dey , Raghunath Sahoo , Reinhard Stock

We have calculated electrical conductivity in the presence of a magnetic field by using the Nambu-Jona-Lasinio model.

High Energy Physics - Phenomenology · Physics 2020-01-17 Jayanta Dey , Sabyasachi Ghosh , Aritra Bandyopadhyay , Ricardo L. S. Farias , Gastao Krein

In the SU(3) Nambu-Jona-Lasinio (NJL) model of a thermally magnetized medium, the regularization methods adopted for the thermodynamic potential and the mass gap equation are utilized to calculate the relevant thermodynamic quantities in…

Nuclear Theory · Physics 2025-06-05 Xiang-Qiong Liu

In the present work we are interested in understanding various properties of quark matter subject to strong magnetic fields described by the Nambu-Jona-Lasinio model with Polyakov loop. We start by analysing the differences arising from two…

We investigate the behavior of cold quark matter under strong magnetic fields in the frame of a nonlocal NJL model in the chiral limit. Our analysis focuses on deconfinement, chiral symmetry restoration, and the anisotropy in pressure…

High Energy Physics - Phenomenology · Physics 2025-01-31 S. A. Ferraris , J. P. Carlomagno , G. A. Contrera , A. G. Grunfeld

We study the regularization dependence of the Nambu-Jona--Lasinio model (NJL) predictions for some properties of magnetized quark matter at zero temperature (and baryonic density) in the mean field approximation. The model parameter…

High Energy Physics - Phenomenology · Physics 2019-07-22 Sidney S. Avancini , Ricardo L. S. Farias , Norberto N. Scoccola , William R. Tavares

We consider the simplest versions of the Nambu--Jona-Lasinio (NJL) model and the Linear Sigma Model (LSM), in the Mean Field Approximation (MFA), in order to analyze hot and dense two flavor quark matter subject to strong magnetic fields.…

High Energy Physics - Phenomenology · Physics 2015-06-05 Gabriel N. Ferrari , Andre F. Garcia , Marcus B. Pinto

Anomalous magnetic moment (AMM) of quarks in presence of an external magnetic field has been explored using a nonlocal Nambu\textemdash Jona-Lasinio (NJL) model. Various strengths of AMM differing in orders of magnitude are used in the…

High Energy Physics - Phenomenology · Physics 2023-02-03 Chowdhury Aminul Islam , Mahammad Sabir Ali , Mei Huang

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 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 have investigated shear viscosity of quark matter in presence of a strong uniform magnetic field background where Nambu-Jona-Lasinio model has been considered to describe the magneto-thermodynamical properties of the medium. In presence…

High Energy Physics - Phenomenology · Physics 2019-09-04 Sabyasachi Ghosh , Bhaswar Chatterjee , Payal Mohanty , Arghya Mukharjee , Hiranmaya Mishra
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