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We study the finite-temperature phase structure and the transition temperature of QCD with two flavors of dynamical quarks on a lattice with the temporal size $N_t=4$, using a renormalization group improved gauge action and the Wilson quark…

We study the chiral phase transition of the two flavor Nambu-Jona-Lasinio (NJL) model in a sphere with the MIT boundary condition. We find that the MIT boundary condition results in much stronger finite size effects than the antiperiodic…

高能物理 - 唯象学 · 物理学 2020-02-19 Zheng Zhang , Chao Shi , Hongshi Zong

The Polyakov loop and the chiral condensate are used as order parameters to explore analytically the possible phase structure of finite temperature QCD. Nambu-Jona-Lasinio models in a background temporal gauge field are combined with a…

高能物理 - 格点 · 物理学 2009-10-28 Peter N. Meisinger , Michael C. Ogilvie

We investigate the chiral phase transition at finite temperature (T) in colour SU(3) Quantum Chromodynamics (QCD) with six species of fermions (Nf = 6) in the fundamental representation. The simulations have been performed by using lattice…

高能物理 - 格点 · 物理学 2011-11-07 Kohtaroh Miura , Maria Paola Lombardo , Elisabetta Pallante

In order to avoid unphysical causality-violating effects any rigidly rotating system must be bounded in directions transverse to the axis of rotation. We demonstrate that this requirement implies substantial dependence of properties of…

高能物理 - 理论 · 物理学 2017-05-24 M. N. Chernodub , Shinya Gongyo

The quark antiquark components of the U(3) lightest scalar meson nonet are investigated by considering the Nambu-Jona-Lasinio model with flavor-dependent coupling constants that were derived by considering (non-perturbative) gluon…

高能物理 - 唯象学 · 物理学 2023-08-02 Fabio L. Braghin

We study the quark-hadron phase transition by using a three flavor Nambu-Jona-Lasinio model with the Polyakov loop at zero chemical potential, extending our previous work with two flavor model. We show that the equation of state at low…

高能物理 - 唯象学 · 物理学 2015-06-17 Kanako Yamazaki , T. Matsui

The possible formation of tensor condensates originated from a tensor-type interaction between quarks is investigated in the three-flavor Nambu-Jona-Lasinio model including the Kobayashi-Maskawa-'t Hooft interaction, which leads to flavor…

高能物理 - 唯象学 · 物理学 2020-08-26 A. Kagawa , M. Morimoto , Y. Tsue , J. da Providencia , C. Providencia , M. Yamamura

Charge-conjugation and parity violation in strong interaction for cold dense quark matter is studied with axions of quantum chromodynamic within the three flavor Nambu--Jona-Lasinio model that includes the coupling of axions to quarks. We…

高能物理 - 唯象学 · 物理学 2025-03-25 Deepak Kumar , Hiranmaya Mishra

Both in heavy-ion collisions as in magnetars very strong magnetic fields are produced, which has its influence on the phases of matter involved. In this paper we investigate the effect of strong magnetic fields (B = 5 m_pi^2 /e = 1.7 x…

高能物理 - 唯象学 · 物理学 2010-04-14 Jorn K. Boomsma , Daniel Boer

In this work, we explore the ground state of QCD system and the relevant collective modes in a parallel electromagnetic (EM) field within the effective three-flavor Nambu--Jona-Lasinio model. From the features of neutral chiral condensates,…

核理论 · 物理学 2020-06-24 Gaoqing Cao

The restoration of chiral symmetry at finite density and/or temperature is investigated in a wide class of one-gluon exchange models in the instantaneous approximation. If the effective quark interaction is less divergent than $1/k^2$ for…

高能物理 - 唯象学 · 物理学 2009-10-28 Kurt Langfeld , Hugo Reinhardt

With the two flavor Nambu-Jona-Lasinio (NJL) model we carry out a phenomenological study on the chiral phase structure, mesonic properties and transport properties in a momentum-space anisotropic quark matter. To calculate transport…

高能物理 - 唯象学 · 物理学 2022-01-13 He-Xia Zhang , Yu-Xin Xiao , Jin-Wen Kang , Ben-Wei Zhang

We study magnetic field effect on chiral phase transition in a Nambu--Jona-Lasinio model. In comparison with mean field approximation containing quarks only, including mesons as quantum fluctuations in the model leads to a transition from…

高能物理 - 理论 · 物理学 2016-08-31 Shijun Mao

We present the bulk thermodynamic properties and phase diagram of strongly interacting matter in an extension of the 3-flavor NJL and PNJL models of QCD. Using a three momentum cut-off scheme, we have extended the multiquark interaction…

高能物理 - 唯象学 · 物理学 2014-11-20 Abhijit Bhattacharyya , Paramita Deb , Sanjay K. Ghosh , Rajarshi Ray

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…

高能物理 - 唯象学 · 物理学 2013-11-20 Pablo G. Allen , Norberto N. Scoccola

We extend the Polyakov-loop improved Nambu--Jona-Lasinio (PNJL) model to 2+1 flavor case to study the chiral and deconfinement transitions of strongly interacting matter at finite temperature and nonzero chemical potential. The…

高能物理 - 唯象学 · 物理学 2008-11-26 Wei-jie Fu , Zhao Zhang , Yu-xin Liu

In this letter, taking the Nambu--Jona--Lasinio model as an example, we propose a new self-consistent mean field approximation method by means of Fierz transformation. This new self-consistent mean field approximation introduces a new free…

核理论 · 物理学 2019-09-04 Fei Wang , Yakun Cao , Yonghui Dia , Hongshi Zong

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

The renormalisation group flow of the chiral Nambu--Jona-Lasinio (NJL) model with one fermion flavor is mapped out in the symmetric phase with the help of the Functional Renormalisation Group (FRG) method using a physically motivated…

高能物理 - 理论 · 物理学 2020-06-24 A. Jakovac , A. Patkos