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We present the thermodynamic properties of strongly interacting matter in finite volume in the framework of Polyakov loop enhanced Nambu$-$Jona-lasinio model within mean field approximation. We considered both the 2 flavor and 2+1 flavor…

高能物理 - 唯象学 · 物理学 2013-04-17 Abhijit Bhattacharyya , Paramita Deb , Sanjay K. Ghosh , Rajarshi Ray , Subrata Sur

We consider the two flavor version of the Linear Sigma Model as well as of the Nambu Jona-Lasinio model, at finite temperature and quark chemical potential, beyond the Mean Field Approximation. Using parameter values for the pion and quark…

核理论 · 物理学 2010-12-23 Lorenzo Ferroni , Volker Koch , Marcus B. Pinto

We investigate the isospin symmetry breaking effects within a recently derived Nambu-Jona-Lasinio related model by fitting the measured pseudoscalar meson masses and weak decay couplings $f_\pi$, $f_K$. Our model contains the next to…

高能物理 - 唯象学 · 物理学 2016-06-29 Alexander A. Osipov , Brigitte Hiller , Alex H. Blin

We investigate the effects of realistic quark masses and local color neutrality on quark pairing in the three-flavor Polyakov--Nambu--Jona-Lasinio model. While prior studies have indicated the presence of light flavor quark (2SC) or…

高能物理 - 唯象学 · 物理学 2013-07-16 Philip D. Powell , Gordon Baym

The effect of Polyakov loop on the QCD phase diagram at high density is studied within the Nambu-Jona Lasinio model with Polyakov loop (PNJL model). We point out that the color neutrality is missing in the standard PNJL model at finite…

高能物理 - 唯象学 · 物理学 2009-01-14 H. Abuki

Correlations and fluctuations of physical quantities are known to play an important role in phase transitions and critical phenomena. In recent years some experimental attempts were made in the scope of the Beam Energy Scan program to…

核理论 · 物理学 2018-09-11 Andre Garcia , Volker Koch , Marcus Benghi Pinto

The phase diagram of strongly interacting matter is studied within a three-flavor Nambu--Jona-Lasinio model, which contains the coupling between chiral and diquark condensates through the axial anomaly. Our results show that it is essential…

高能物理 - 唯象学 · 物理学 2010-12-13 Hannes Basler , Michael Buballa

We obtain improved bounds on both the flavor-independent and -dependent vector interactions in a $2+1$-flavor Nambu\textendash Jona-Lasinio (NJL) model using the latest precise LQCD results of the curvature coefficients of the chiral…

核理论 · 物理学 2025-12-30 Mahammad Sabir Ali , Deeptak Biswas , Chowdhury Aminul Islam

Phase transitions in the imaginary chemical potential region are studied by the Polyakov loop extended Nambu-Jona-Lasinio (PNJL) model that possesses the extended Z3 symmetry. The extended Z3 invariant quantities such as the partition…

高能物理 - 唯象学 · 物理学 2008-11-26 Yuji Sakai , Kouji Kashiwa , Hiroaki Kouno , Masanobu Yahiro

We consider the NJL model as an effective quark theory to describe the interaction which is responsible for the quark flavor dynamics at intermediate energies. In addition to the usual ultraviolet cut-off which is necessary since the model…

高能物理 - 唯象学 · 物理学 2009-10-28 D. Ebert , T. Feldmann , H. Reinhardt

Quark number susceptibility on the lattice, obtained by merely adding a $\mu N$ term with $\mu$ as the chemical potential and $N$ as the conserved quark number, has a quadratic divergence in the cut-off $a$. We show that such a divergence…

高能物理 - 格点 · 物理学 2015-08-06 Rajiv V. Gavai , Sayantan Sharma

We investigate the phase diagram of the so-called Polyakov--Nambu--Jona-Lasinio model at finite temperature and nonzero chemical potential with three quark flavors. Chiral and deconfinement phase transitions are discussed, and the relevant…

高能物理 - 唯象学 · 物理学 2015-08-10 Pedro Costa , C. A. de Sousa , M. C. Ruivo , H. Hansen

The responses of quark condensates to the chemical potential, as a function of temperature T and chemical potential \mu, are calculated within the Nambu--Jona-Lasinio (NJL) model. We compare our results with those from the recent lattice…

高能物理 - 格点 · 物理学 2011-04-20 O. Miyamura , S. Choe , Y. Liu , T. Takaishi , A. Nakamura

We study the phase diagram of strongly interacting matter in the framework of a non-local SU(2) chiral quark model which includes wave function renormalization and coupling to the Polyakov loop. Both non-local interactions based on the…

高能物理 - 唯象学 · 物理学 2014-11-21 G. A. Contrera , M. Orsaria , N. N. Scoccola

We study quark-hadron phase transition at finite temperature with zero net baryon density by the Nambu-Jona-Lasinio model for interacting quarks in uniform background temporal color gauge fields. At low temperatures, unphysical thermal…

高能物理 - 唯象学 · 物理学 2015-07-01 Kanako Yamazaki , T. Matsui

We extend the SU(3) (Polyakov) Nambu Jona-Lasinio in two ways: We introduce the next to leading order contribution (in $N_c$) in the partition function. This contribution contains explicit mesonic terms. We introduce a coupling between the…

高能物理 - 唯象学 · 物理学 2020-10-16 David Fuseau , Thorsten Steinert , Joerg Aichelin

We study the thermodynamics and the susceptibilities of quark matter in the framework of two-flavor Nambu-Jona-Lasinio model at finite isospin chemical potential and temperature. Isospin number density, normalized energy density and trace…

高能物理 - 唯象学 · 物理学 2020-07-03 Zhen-Yan Lu , Cheng-Jun Xia , Marco Ruggieri

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

We study QED corrections to the chiral symmetry breaking in Nambu-Jona-Lasinio (NJL) model with two flavors of quarks. In the model the isospin symmetry is broken by differences of the current quark masses and the electromagnetic charges…

高能物理 - 唯象学 · 物理学 2017-08-23 Takahiro Fujihara , Tomohiro Inagaki , Daiji Kimura

Recent work on QCD-like theories has shown that the addition of adjoint fermions obeying periodic boundary conditions to gauge theories on $R^{3}\times S^{1}$ can lead to a restoration of center symmetry and confinement for sufficiently…

高能物理 - 格点 · 物理学 2010-04-06 Hiromichi Nishimura , Michael C. Ogilvie