The QCD Phase Diagram from Statistical Model Analysis

被引：7
作者：
Stock, R. [1 ,2 ]
Becattini, F. [3 ,4 ]
Bleicher, M. [1 ,5 ]
Steinheimer, J. [1 ]
机构：
[1] Frankfurt Inst Adv Phys, Frankfurt, Germany
[2] Goethe Univ, Inst Kernphys, Frankfurt, Germany
[3] Univ Firenze, Florence, Italy
[4] INFN, Sez Firenze, Florence, Italy
[5] Goethe Univ, Inst Theoret Phys, Frankfurt, Germany
来源：
NUCLEAR PHYSICS A | 2019年 / 982卷
关键词：
D O I：
10.1016/j.nuclphysa.2018.11.019
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
In high multiplicity nucleus-nucleus collisions baryon-antibaryon annihilation and regeneration occur during the final hadronic expansion phase, thus distorting the initial equilibrium multiplicity ratios. We quantify the modifications employing the hybrid UrQMD transport model and apply them to the grand canonical partition functions of the Statistical Hadronization Model(SHM). We analyze minimum bias and central Pb+Pb collision data at SPS and LHC energy. We explain the Pion to Proton ratio puzzle. We also reproduce the deuteron to proton ratio at LHC energy by the SHM, and by UrQMD after attaching a phase space coalescence process. We discuss the resulting (T, mu(B)) diagram.
引用
收藏
页码：827 / 830
页数：4
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