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相关论文: An innovative approach for sketching the QCD phase…

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QCD-based thermodynamics at zero and finite quark chemical potential is studied using an extended Nambu and Jona-Lasinio approach in which quarks couple simultaneously to the chiral condensate and to a background temporal gauge field…

核理论 · 物理学 2007-05-23 Claudia Ratti , Michael A. Thaler , Wolfram Weise

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 Nambu-Jona-Lasinio (NJL) model has been widely studied for investigating the chiral phase structure of strongly interacting matter. The study of the thermodynamics of field theories within the framework of Lattice Field Theory is…

高能物理 - 唯象学 · 物理学 2022-12-06 Alexander M. Czajka , Zhong-Bo Kang , Henry Ma , Fanyi Zhao

We study the critical point in the QCD phase diagram in the Nambu-Jona-Lasino (NJL) model by including a scalar-vector coupled interaction. We find that varying the strength of this interaction, which has no effect on the vacuum properties…

核理论 · 物理学 2021-01-13 Kai-Jia Sun , Che-Ming Ko , Shanshan Cao , Feng Li

We evaluate the next-to-leading order correction to the Nambu-Jona-Lasinio model starting from quantum chromodynamics. We show that a systematic expansion exists, starting from a given set of exact classical solutions, so that higher order…

高能物理 - 唯象学 · 物理学 2016-11-24 Marco Frasca

We investigate the phase diagram of the so-called Polyakov--Nambu--Jona-Lasinio model at finite temperature and non-zero 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 2014-11-21 Pedro Costa , M. C. Ruivo , C. A. de Sousa , H. Hansen

The QCD transition from a hadronic to a quark-gluon plasma phase is a cross-over at vanishing/small baryo-chemical potential, while at higher chemical potentials it is argued that it becomes of first order, ending with a critical end-point.…

高能物理 - 唯象学 · 物理学 2020-12-30 M. Motta , W. M. Alberico , A. Beraudo , P. Costa , R. Stiele

We investigate the dynamical chiral symmetry breaking and its restoration at finite density and temperature within the two-flavor Nambu-Jona-Lasinio model, and mainly focus on the critical behaviors near the critical end point (CEP) and…

高能物理 - 唯象学 · 物理学 2015-10-19 Ya Lu , Yi-Lun Du , Zhu-Fang Cui , Hong-Shi Zong

We review the Nambu-Jona-Lasinio (NJL) approach to the dynamical breaking of chiral symmetry in Quantum Chromodynamics (QCD). The subjects treated in Part I include the vacuum structure of QCD, mass spectra and coupling constants of…

高能物理 - 唯象学 · 物理学 2010-11-01 T. Hatsuda , T. Kunihiro

The formalism of Riemannian geometry is applied to study the phase transitions in Nambu -Jona Lasinio (NJL) model. Thermodynamic geometry reliably describes the phase diagram, both in the chiral limit and for finite quark masses. The…

核理论 · 物理学 2020-12-16 P. Castorina , D. Lanteri , S. Mancani

The chiral phase transition is studied in an extended Nambu--Jona-Lasinio model with eight-quark interactions. Equations for scalar and vector quark densities, derived in the mean field approximation, are nonlinear and mutually coupled. The…

In this talk I compare the knowledge on the critical end point of the QCD phase diagram grasped from lattice calculations, with that obtained from Nambu--Jona-Lasinio (NJL) model computations. The original publication is available at…

高能物理 - 唯象学 · 物理学 2014-11-20 Marco Ruggieri

We discuss in this note simultaneous existence of chiral symmetry breaking and color superconductivity at finite temperature and density in a Nambu-Jona-Lasinio type model. The methodology involves an explicit construction of a variational…

高能物理 - 唯象学 · 物理学 2009-10-31 Hiranmaya Mishra , Jitendra C. Parikh

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 investigate the phase diagram of the so-called Polyakov--Nambu--Jona-Lasinio (PNJL) model at finite temperature and nonzero chemical potential. The calculations are performed in the light and strange quark sectors ($u$, $d$, $s$), which…

高能物理 - 唯象学 · 物理学 2015-03-20 P. Costa , C. A. de Sousa , M. C. Ruivo , H. Hansen , O. Oliveira , P. J. Silva

A class of Polyakov-loop-modified Nambu--Jona-Lasinio (PNJL) models have been used to support a conjecture that numerical simulations of lattice-regularized quantum chromodynamics (QCD) defined with a chiral chemical potential can provide…

In this talk we discuss the role of inhomogeneous phases in the phase diagram of the Nambu-Jona-Lasinio (NJL) and the quark meson (QM) model. By means of a generalized Ginzburg-Landau (GL) expansion it is concluded that the critical point…

高能物理 - 唯象学 · 物理学 2014-11-20 Dominik Nickel

We investigate the phase diagram of strongly interacting matter as a function of temperature and baryonic density/chemical potential, within Nambu--Jona-Lasinio type models. We perform a systematic study concerning the existence, location,…

高能物理 - 唯象学 · 物理学 2008-11-26 Pedro Costa , M. C. Ruivo , C. A. de Sousa

The thermodynamic potential and thermal dependence of low lying mass spectra of scalars and pseudoscalars are evaluated in a generalized Nambu -- Jona-Lasinio model, which incorporates eight-quark interactions. These are necessary to…

高能物理 - 唯象学 · 物理学 2009-11-13 B. Hiller , A. A. Osipov , J. Moreira , A. H. Blin

We test the reliability of the the Polyakov-loop extended Nambu-Jona-Lasinio (PNJL) model, comparing the model result with the lattice data at nonzero imaginary chemical potential. The PNJL model with the vector-type four-quark and…

高能物理 - 唯象学 · 物理学 2009-08-21 Yuji Sakai , Kouji Kashiwa , Hiroaki Kouno , Masayuki Matsuzaki , Masanobu Yahiro
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