中文
相关论文

相关论文: QCD Phase Boundary and Critical Point in a Bag Mod…

200 篇论文

One of the most promising possibilities may be the appearance of quark matter in astrophysical phenomena in the light of recent progress in observations. The mechanism of deconfinement is not well understood, but the thermodynamical aspects…

高能天体物理现象 · 物理学 2013-09-10 Nobutoshi Yasutake , Tsuneo Noda , Hajime Sotani , Toshiki Maruyama , Toshitaka Tatsumi

At the ultra-high densities existing in the core of neutron stars, it is expected that a phase transition from baryonic to deconfined quark matter may occur. Such a phase transition would affect the underlying equation of state (EoS) as…

高能天体物理现象 · 物理学 2023-12-15 Swarnim Shirke , Suprovo Ghosh , Debarati Chatterjee

We study the equation of state (EOS) of nuclear matter as function of density. We expand the energy per particle (E/A) of symmetric infinite nuclear matter in powers of the density to take into account 2,3,. . .,N-body forces. New EOS are…

核理论 · 物理学 2015-05-19 Ruslan Magana , Hua Zhenga , Aldo Bonasera

We study the equation of state (EOS) of kaon-condensed matter including the effects of temperature and trapped neutrinos. It is found that the order of the phase transition to a kaon-condensed phase, and whether or not Gibbs' rules for…

核理论 · 物理学 2009-11-06 J. A. Pons , S. Reddy , P. J. Ellis , M. Prakash , J. M. Lattimer

We use the linear sigma model with quarks to locate the critical end point in the effective QCD phase diagram accounting for fluctuations in temperature and quark chemical potential. For this purpose, we use the non-equilibrium formalism…

高能物理 - 唯象学 · 物理学 2020-04-29 Alejandro Ayala , Saul Hernandez-Ortiz , Luis A. Hernandez , Victor Knapp-Perez , Renato Zamora

We construct an effective model for the QCD equation of state, taking into account chiral symmetry restoration as well as the deconfinement phase transition. The correct asymptotic degrees of freedom at the high and low temperature limits…

高能物理 - 唯象学 · 物理学 2011-01-28 J. Steinheimer , S. Schramm , H. Stöcker

The space-time evolution of high energy non-central heavy ion collisions is studied with relativistic hydrodynamics. The results are very sensitive to the Equation of State(EoS). For an EoS with the QCD phase transition, an unusual matter…

核理论 · 物理学 2009-10-31 D. Teaney , E. V. Shuryak

It is argued that in relativistic heavy ion collisions, due to limited size of the formed matter, the reliable criterion of critical point is finite-size scaling, rather than non-monotonous behavior of observable. How to locate critical…

核理论 · 物理学 2009-04-08 Chen Lizhu , X. S. Chen , Wu Yuanfang

We present a strangeness-neutral equation of state for QCD that exhibits critical behavior and matches lattice QCD results for the Taylor-expanded thermodynamic variables up to fourth-order in $\mu_B/T$. It is compatible with the SMASH…

高能物理 - 唯象学 · 物理学 2021-03-16 J. M. Stafford , D. Mroczek , A. R. Nava Acuna , J. Noronha-Hostler , P. Parotto , D. R. P. Price , C. Ratti

It is shown that hadronic matter formed at high temperatures, according to the prescription of the statistical bootstrap principle, develops a critical point at nonzero baryon chemical potential. The location of the critical point in the…

高能物理 - 唯象学 · 物理学 2009-11-07 N. G. Antoniou , A. S. Kapoyannis

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,…

核理论 · 物理学 2015-05-28 G. Y. Shao , M. Di Toro , V. Greco , M. Colonna , S. Plumari , B. Liu , Y. X. Liu

It is shown how to embed a critical point in a smooth background equation of state so as to yield the critical exponents and critical amplitude ratios expected of a transition in the same universality class as the liquid-gas phase…

核理论 · 物理学 2022-10-20 Joseph Kapusta , Tom Welle , Christopher Plumberg

We study the QCD phase transition based on the statistical treatment with the bag-model picture of hadrons, and derive a phenomenological relation among the low-lying hadron masses, the hadron sizes and the critical temperature of the QCD…

高能物理 - 唯象学 · 物理学 2007-05-23 Noriyoshi Ishii , Hideo Suganuma

We explore the QCD equation of state at finite baryon density through an expansion in baryon number fugacity, making use of the recent lattice data on the four leading Fourier coefficients of the expansion. A state-of-the-art description of…

高能物理 - 唯象学 · 物理学 2019-05-06 Volodymyr Vovchenko , Jan Steinheimer , Owe Philipsen , Horst Stoecker

Matter described by Quantum Chromodynamics (QCD), the theory of strong interactions, may undergo phase transitions when its temperature and the chemical potentials are varied. QCD at finite temperature is studied in the laboratory by…

高能物理 - 唯象学 · 物理学 2011-06-24 Sourendu Gupta , Xiaofeng Luo , Bedangadas Mohanty , Hans Georg Ritter , Nu Xu

Understanding the phases of quantum chromodynamics (QCD) at finite temperature and baryon density is crucial for describing matter in heavy-ion collisions and the interior of neutron stars. While the transition from the confined phase to…

高能物理 - 理论 · 物理学 2025-09-08 Masanori Hanada , Jack Holden , Hiromasa Watanabe

I review arguments for the existence of a critical point in the QCD phase diagram as a function of temperature and baryon chemical potential. I describe how heavy ion collision experiments at the SPS and RHIC can discover the tell-tale…

高能物理 - 唯象学 · 物理学 2014-11-17 Krishna Rajagopal

Baryon number fluctuations are sensitive to the QCD phase transition and QCD critical point. According to the Feynman rules of finite-temperature field theory, we calculated various order moments and cumulants of the baryon number…

核理论 · 物理学 2017-04-07 Ameng Zhao , Xiaofeng Luo , Hongshi Zong

In this work, we discuss the deconfinement phase transition to quark matter in hot/dense matter. We {examine} the effect that different charge fractions, isospin fractions, net strangeness, and chemical equilibrium with respect to leptons…

We investigate the baryon number susceptibilities up to fourth order along different freeze-out lines in a holographic QCD model with the critical end point (CEP), and we propose that the peaked baryon number susceptibilities along the…

高能物理 - 唯象学 · 物理学 2017-11-15 Zhibin Li , Yidian Chen , Danning Li , Mei Huang