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Motivated by the anisotropic momentum distribution of particles in heavy-ion collisions, we study the angular dependence of quark average momentum and quark distribution function in the Polyakov-Nambu--Jona-Lasinio (PNJL) quark model. We…

High Energy Physics - Phenomenology · Physics 2023-12-27 Wei-bo He , Guo-yun Shao

The quark-hadron phase transition at finite baryon chemical potential is investigated in the extended Nambu-Jona-Lasinio model in which the scalar-vector eight-point interaction is included holding the chiral symmetry. By comparing a…

High Energy Physics - Phenomenology · Physics 2015-03-13 Y. Tsue , J. da Providencia , C. Providencia , M. Yamamura

Using a relativistic transport model to describe the evolution of the quantum chromodynamic matter produced in Au+Au collisions at $\sqrt{s_{NN}}=3-200$ GeV, we study the effect of a first-order phase transition in the equation of state of…

Nuclear Theory · Physics 2022-05-24 Kai-Jia Sun , Wen-Hao Zhou , Lie-Wen Chen , Che Ming Ko , Feng Li , Rui Wang , Jun Xu

By considering baryons as clusters of three quarks, we extend the Nambu-Jona-Lasinio (NJL) model to describe baryonic matter, quark matter, and their transitions in a unified manner, where the Dirac sea and spontaneous chiral symmetry…

Nuclear Theory · Physics 2024-09-20 Cheng-Jun Xia

Using an extended Polyakov-looped Nambu--Jona-Lasinio (PNJL) model to describe the baryon density fluctuations of quark matter along the isentropic trajectories corresponding to different $s/\rho_B$ values extracted from Au+Au collisions at…

Nuclear Theory · Physics 2025-11-27 He Liu , Kai-Jia Sun , Peng-Cheng Chu

Using a transport model that includes a first-order chiral phase transition between the partonic and the hadronic matter, we study the development of density fluctuations in the matter produced in heavy ion collisions as it undergoes the…

Nuclear Theory · Physics 2021-12-01 Kai-Jia Sun , Che Ming Ko , Feng Li , Jun Xu , Lie-Wen Chen

The spinodal amplification of density fluctuations is treated perturbatively within dissipative fluid dynamics for the purpose of elucidating the prospects for this mechanism to cause a phase separation to occur during a relativistic…

Nuclear Theory · Physics 2014-11-21 Jorgen Randrup

In this talk I discuss how a first order phase transition may proceed in rapidly expanding partonic matter produced in a relativistic heavy-ion collision. The resulting picture is that a strong collective flow of matter will lead to the…

High Energy Physics - Phenomenology · Physics 2015-06-25 I. N. Mishustin

We consider the (3+1) dimensional expansion and cooling of the chirally-restored and deconfined matter at finite net-baryon densities as expected in heavy-ion collisions at moderate energies. In our approach, we consider chiral fields and…

Nuclear Theory · Physics 2014-07-23 Christoph Herold , Marlene Nahrgang , Igor Mishustin , Marcus Bleicher

Using the Polyakov-Nambu-Jona-Lasinia (PNJL) model, we study the spinodal instability of a baryon-rich quark-gluon plasma in the linear response theory. We find that the spinodal unstable region in the temperature and density plane shrinks…

Nuclear Theory · Physics 2016-03-30 Feng Li , Che Ming Ko

Based on a multi-phase transport model for relativistic heavy-ion collisions, effects of the parton scatterings on the production of strangeness in relativistic heavy-ion collisions are studied. It is found that the distributions of strange…

Nuclear Theory · Physics 2023-07-06 Gao-Chan Yong

The two-Equation of State (Two-EoS) model is used to describe the hadron-quark phase transition in dense-hot matter formed in heavy-ion collisions. The non-linear Walecka model is used to describe the hadronic phase. For the quark phase,…

Nuclear Theory · Physics 2015-05-28 G. Y. Shao , M. Di Toro , V. Greco , M. Colonna , S. Plumari , B. Liu , Y. X. Liu

We discuss the isospin effect on the possible phase transition from hadronic to quark matter at high baryon density and finite temperatures. The two-Equation of State (Two-EoS) model is adopted to describe the hadron-quark phase transition…

Nuclear Theory · Physics 2016-09-21 Massimo Di Toro , Maria Colonna , Vincenzo Greco , Guo-Yun Shao

Solutions of hydrodynamical equations are presented for the equation of state of the Var der Waals type allowing for the first order phase transition. Attention is focused on description of the hadron-quark phase transition in heavy ion…

Nuclear Theory · Physics 2009-11-10 V. V. Skokov , D. N. Voskresensky

We study the transition from hadronic matter to a mixed phase of quarks and hadrons at high baryon and isospin densities reached in heavy ion collisions. We focus our attention on the role played by the nucleon symmetry energy at high…

Nuclear Theory · Physics 2008-11-26 M. Di Toro , A. Drago , T. Gaitanos , V. Greco , A. Lavagno

The time evolution of particle number fluctuations in nuclear collisions at intermediate energies ($E_{\rm lab} = 1.23-10A$ GeV) is studied by means of the UrQMD-3.5 transport model. The transport description incorporates baryonic…

High Energy Physics - Phenomenology · Physics 2023-03-10 O. Savchuk , R. V. Poberezhnyuk , A. Motornenko , J. Steinheimer , M. I. Gorenstein , V. Vovchenko

The two-Equation of State (EoS) model is used to describe the hadron-quark phase transition in asymmetric matter formed at high density in heavy-ion collisions. For the quark phase, the three-flavor Nambu--Jona-Lasinio (NJL) effective…

Nuclear Theory · Physics 2011-06-08 G. Y. Shao , M. Di Toro , B. Liu , M. Colonna , V. Greco , Y. X. Liu , S. Plumari

The region of large net-baryon densities in the QCD phase diagram is expected to exhibit a first-order phase transition. Experimentally, its study will be one of the primaryobjectives for the upcoming FAIR accelerator. We model the…

High Energy Physics - Phenomenology · Physics 2015-06-23 Christoph Herold , Marlene Nahrgang , Yupeng Yan , Chinorat Kobdaj

The stability of an expanding parton plasma is analyzed within quasi-particle models. The effective mass of the parton is calculated self-consistently from a gap equation which is either obtained from the Nambu Jona-Lasinio Lagrangian or…

Nuclear Theory · Physics 2007-05-23 P. Bozek , Y. B. He , J. Huefner

To incorporate the effect of gluons on the evolution dynamics of the quark matter produced in relativistic heavy-ion collisions, we extend the 3-flavor Nambu-Jona-Lasinio (NJL) transport model to include the contribution from the Polyakov…

Nuclear Theory · Physics 2021-10-13 Wen-Hao Zhou , He Liu , Feng Li , Yi-Feng Sun , Jun Xu , Che Ming Ko
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