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The effect of anomalous magnetic moment of quarks on thermodynamic properties of the chiral condensate is studied, using of a two-flavor Nambu--Jona-Lasinio model at finite temperature $T$, chemical potential $\mu$, and in the presence of a…

高能物理 - 唯象学 · 物理学 2016-01-20 Sh. Fayazbakhsh , N. Sadooghi

We investigate the possible existence of spin polarization and color superconductivity in the Nambu--Jona-Lasinio model with a tensor-type interaction at finite density and temperature. The thermodynamic potential is calculated by the…

高能物理 - 唯象学 · 物理学 2017-04-05 Hiroaki Matsuoka , Yasuhiko Tsue , Joao da Providencia , Constancia Providencia , Masatoshi Yamamura

We derive the analytic expression for the one-loop $SU(N_{c})$ QCD effective potential including $N_{f}$ flavor quarks which non-linearly interact with the chromo-magnetic background field and the external $U(1)_{em}$ magnetic field. After…

高能物理 - 唯象学 · 物理学 2014-03-26 Sho Ozaki

The stable chromomagnetic vacuum for SU(2) Yang-Mills theory found earlier is shown to give a model for confinement in QCD, using Wilson loop, and a linear potential (in the leading order) for quark-antiquark interaction. The coefficient…

高能物理 - 理论 · 物理学 2015-05-18 R. Parthasarathy

We investigate three-colour QCD thermodynamics at finite quark chemical potential. Lattice QCD results are compared with a generalized Nambu Jona-Lasinio model in which quarks couple simultaneously to the chiral condensate and to a…

高能物理 - 唯象学 · 物理学 2008-11-26 C. Ratti , M. A. Thaler , W. Weise

We study the response of the QCD vacuum to an external abelian chromomagnetic field in the framework of a non local Nambu-Jona Lasinio model with the Polyakov loop. We use the Lattice results on the deconfinement temperature of the pure…

高能物理 - 唯象学 · 物理学 2009-09-29 Leonardo Campanelli , Marco Ruggieri

Thermodynamics of the three-flavor quark-meson model with axial anomaly is studied in the presence of external magnetic fields. The nonperturbative functional renormalization group is employed in order to incorporate quantum and thermal…

高能物理 - 唯象学 · 物理学 2015-02-26 Kazuhiko Kamikado , Takuya Kanazawa

We estimate here chiral susceptibility at finite temperature within the framework of the Nambu-Jona-Lasinio model (NJL) using the Wigner function approach. We also estimate it in the presence of chiral chemical potential ($\mu_5$) as well…

高能物理 - 唯象学 · 物理学 2019-12-04 Arpan Das , Deepak Kumar , Hiranmaya Mishra

In this paper, the deconfinement and chiral restoration transitions in strong magnetic field is realized at zero temperature in the Polyakov Nambu$-$Jona-Lasinio model. We provide the thermodynamic treatment to mimic the deconfinement phase…

高能物理 - 唯象学 · 物理学 2022-04-14 Yuan Wang , Xin-Jian Wen

The thermodynamics of quarks and gluons strongly depends on the vacuum colormagnetic field, which grows with the temperature $T$, so that spatial string tension $\sigma_s ={\rm const}~ g^4 (T) T^2$. We investigate below what happens when…

高能物理 - 唯象学 · 物理学 2018-07-04 M. A. Andreichikov , Yu. A. Simonov

We compute the combined effect of confinement, an external magnetic field and temperature on the vacuum of the charged scalar field using Schwinger's formula for the effective action in the imaginary time formalism. The final result…

高能物理 - 理论 · 物理学 2007-05-23 M. V. Cougo-Pinto , C. Farina , M. R. Negrao

The quasiparticle model is employed to investigate the quark matter at finite chemical potential. The effective bag constant is derived to be dependent on both the chemical potential and the magnetic field. The self-consistent…

高能物理 - 唯象学 · 物理学 2025-01-14 Xin-Jian Wen , Xiao-Wen Jiang

According to the gauge/gravity duality, we use an Einstein-Maxwell-dilaton(EMD) model to study the running coupling constant at finite chemical potential and magnetic field. First, we calculate the effect of temperature on the running…

高能物理 - 唯象学 · 物理学 2022-07-13 Xun Chen , Lin Zhang , Defu Hou

Magnetic field dependent corrections for the coupling constant of the Nambu-Jona-Lasinio model are calculated by considering the one-loop background field method. These coupling constants turn out to break chiral and flavor symmetries and…

高能物理 - 唯象学 · 物理学 2022-06-22 Thiago H. Moreira , Fabio L. Braghin

In this short note we address the issue of obtaining the temperature dependence of the QCD conformal anomaly from a top-down holographic dual consistent with very recent lattice results for both, T<Tc and T>Tc. As the holographic dual, we…

高能物理 - 理论 · 物理学 2020-08-26 Aalok Misra , Charles Gale

We study the QCD topology and axion properties at finite temperature and chemical potential in the framework of the two-flavor Nambu$-$Jona-Lasinio model. We find that the behaviors of the two lowest cumulants of the QCD topological charge…

高能物理 - 唯象学 · 物理学 2024-11-27 Hong-Fang Gong , Qi Lu , Zhen-Yan Lu , Lu-Meng Liu , Xun Chen , Shu-Peng Wang

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…

高能物理 - 唯象学 · 物理学 2021-07-28 Alejandro Ayala , Luis A. Hernández , Marcelo Loewe , Cristian Villavicencio

The color neutral two-flavor superconducting (2SC) phase of cold and dense quark matter is studied in the presence of constant magnetic fields and at moderate baryon densities. In the first part of the paper, a two-flavor effective…

高能物理 - 唯象学 · 物理学 2011-08-17 Sh. Fayazbakhsh , N. Sadooghi

We present reversible magnetization measurements on MgB2 single crystals in magnetic fields up to 2.5 T applied parallel to the crystal's c-axis. This magnetization is analyzed in terms of the Hao-Clem model, and various superconducting…

超导电性 · 物理学 2009-11-10 Byeongwon Kang , Heon-Jung Kim , min-Seok Park , Kyung-Hee Kim , Sung-Ik Lee

We study the behavior of a hadronic matter in the presence of an external magnetic field within the van der Waals hadron resonance gas model, considering both attractive and repulsive interactions among the hadrons. Various thermodynamic…

高能物理 - 唯象学 · 物理学 2023-11-01 Bhagyarathi Sahoo , Kshitish Kumar Pradhan , Dushmanta Sahu , Raghunath Sahoo