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相关论文: The QCD Mixed Phase: Shaken, not Stirred

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Baryon number fluctuations are believed to be good signatures of the QCD phase transition and its CP. Since the fluctuations are proportional to the various order baryon-number susceptibilities and the quark-number density is related to the…

高能物理 - 唯象学 · 物理学 2021-07-08 Ameng Zhao , Hongshi Zong

We present our results on transverse momentum fluctuations, multiplicity fluctuations and transverse momentum distributions for baryons and mesons in the framework of the clustering of color sources. We determine under what conditions the…

高能物理 - 唯象学 · 物理学 2008-05-23 L. Cunqueiro , J. Dias de Deus , E. G. Ferreiro , C. Pajares

Employing the Polyakov extended Nambu-Jona-Lasinio model, we determine the net-baryon number fluctuations of magnetized three-flavor quark matter. We show that the magnetic field changes the nature of the strange quark transition from…

高能物理 - 唯象学 · 物理学 2018-10-23 Márcio Ferreira , Pedro Costa , Constança Providência

We study the thermodynamic curvature, $R$, around the chiral phase transition at finite temperature and chemical potential, within the quark-meson model augmented with meson fluctuations. We study the effect of the fluctuations, pions and…

高能物理 - 唯象学 · 物理学 2021-01-04 Paolo Castorina , Daniele Lanteri , Marco Ruggieri

We show that the simultaneous measurement of yields and fluctuations is capable of falsifying and constraining the statistical hadronization model. We show how such a measurement can test for chemical non-equilibrium, and distinguish…

核理论 · 物理学 2016-09-08 Giorgio Torrieri , Sangyong Jeon , Johann Rafelski

Recent results from linear perturbation theory suggest that first-order cosmological quark-hadron phase transitions occurring as deflagrations may be ``borderline'' unstable, and those occurring as detonations may give rise to growing modes…

广义相对论与量子宇宙学 · 物理学 2009-11-10 P. Chris Fragile , Peter Anninos

We develop a dynamical model to describe critical fluctuations in heavy-ion collisions, incorporating the baryon diffusion current and chiral condensate as dynamical degrees of freedom, to address their nontrivial scale separation. The…

核理论 · 物理学 2025-02-26 Azumi Sakai , Koichi Murase , Hirotsugu Fujii , Tetsufumi Hirano

In the vicinity of the quark-hadron critical point, in the phase diagram of QCD, simple power-law relations constrain the mid-rapidity net-baryon density profile, for different heavy-ion processes, in a unifying scheme. The corresponding…

高能物理 - 唯象学 · 物理学 2007-05-23 N. G. Antoniou , F. K. Diakonos , A. S. Kapoyannis

We calculate the quadratic fluctuations of net baryon number, electric charge and strangeness as well as correlations among these conserved charges in (2+1)-flavor lattice QCD at zero chemical potential. Results are obtained using…

We analyze fluctuations of quark number and electric charge, in 2-flavour QCD at finite temperature and vanishing net baryon number density. In the hadronic phase we find that an enhancement of charge fluctuations arises from contributions…

高能物理 - 唯象学 · 物理学 2009-11-11 F. Karsch , S. Ejiri , K. Redlich

We suggest that the fluctuations of strange hadron multiplicity could be sensitive to the equation of state and microscopic structure of strongly interacting matter created at the early stage of high energy nucleus-nucleus collisions. They…

高能物理 - 唯象学 · 物理学 2009-11-10 M. I. Gorenstein , M. Gazdzicki , O. S. Zozulya

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…

高能物理 - 唯象学 · 物理学 2015-03-13 Y. Tsue , J. da Providencia , C. Providencia , M. Yamamura

The UrQMD model with a density dependent equation of state, including a first-order phase transition, is used to study the time dependence of baryon number and proton number susceptibilities up to third order in heavy ion reactions of…

高能物理 - 唯象学 · 物理学 2025-06-13 Thiranat Bumnedpan , Jan Steinheimer , Tom Reichert , Christoph Herold , Ayut Limphirat , Marcus Bleicher

In addition to signals for the critical point, evidence for a first order phase transition would indicate a nontrivial structure within the QCD phase diagram. Moreover, while not a direct measurement of the critical point, the presence of a…

核理论 · 物理学 2025-11-20 Jamie M. Karthein , Volker Koch , Claudia Ratti

We review some important results from the PHENIX experiment at RHIC. They were obtained in a unique environment for studying QCD bulk matter at temperatures and densities that sur- pass the limits where hadrons exist as individual entities,…

核实验 · 物理学 2019-08-21 Rachid Nouicer

The hadron resonance gas (HRG) model is often believed to correctly describe the confined phase of QCD. This assumption is the basis of many phenomenological works on QCD thermodynamics and of the analysis of hadron yields in relativistic…

The recent results on net-proton and net-charge multiplicity fluctuations from the beam energy scan program at RHIC have drawn much attention to explore the critical point in the QCD phase diagram. Experimentally measured protons contain…

核理论 · 物理学 2017-06-14 D. K. Mishra , P. Garg

The recent papers of Jeon and Koch [1] and Asakawa, Heinz, and Muller [2] argue that the event by event fluctuations of the ratio of the positively charged and negatively charged pions provide a distinct signal for a QGP at RHIC/LHC due to…

核理论 · 物理学 2007-05-23 S. J. Lindenbaum , R. S. Longacre

This thesis aims to elucidate the role of initial baryon stopping and its diffusion in heavy-ion collisions (HIC) using hydrodynamic model. In this regard, we have studied the observable-directed flow ($v_1$) of identified hadrons,…

核理论 · 物理学 2025-05-13 Tribhuban Parida

We present updated results on chiral phase structure in (2+1)-flavor ($N_f$=2+1) and 3-flavor ($N_f=3$) QCD based on the simulations using Highly Improved Staggered Quarks on lattices with temporal extent $N_\tau$ =6 at vanishing baryon…

高能物理 - 格点 · 物理学 2019-08-14 Heng-Tong Ding , Prasad Hegde
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