Parton/hadron dynamics in heavy-ion collisions at FAIR energies

被引：8
作者：
Cassing, W. [1 ]
Konchakovski, V. P. [1 ]
Palmese, A. [1 ]
Toneev, V. D. [2 ]
Bratkovskaya, E. L. [3 ]
机构：
[1] Univ Giessen, Inst Theoret Phys, Giessen, Germany
[2] Joint Inst Nucl Res, Dubna 141980, Russia
[3] Goethe Univ Frankfurt, Inst Theoret Phys, Frankfurt, Germany
来源：
3RD INTERNATIONAL CONFERENCE ON NEW FRONTIERS IN PHYSICS | 2015年 / 95卷
关键词：
PLUS AU COLLISIONS; NUCLEUS-NUCLEUS COLLISIONS; COLLECTIVE FLOW; ANTIKAON PRODUCTION; TRANSVERSE FLOW; DIRECTED FLOW; SIS; ANTIPROTONS; TRANSITION; HOT;
D O I：
10.1051/epjconf/20159501004
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Recent STAR data for the directed flow of protons, antiprotons and charged pions obtained within the beam energy scan program are analyzed within the Parton-Hadron-String-Dynamics (PHSD/HSD) transport models. Both versions of the kinetic approach are used to clarify the role of partonic degrees of freedom. The PHSD results, simulating a partonic phase and its coexistence with a hadronic one, are roughly consistent with the STAR data. Generally, the semi-qualitative agreement between the measured data and model results supports the idea of a crossover type of quark-hadron transition which softens the nuclear EoS but shows no indication of a first-order phase transition. Furthermore, the directed flow of kaons and antikaons is evaluated in the PHSD/HSD approaches from approximate to 3 - 200 GeV which shows a high sensitivity to hadronic potentials in the FAIR/NICA energy regime root(S)NN8 <= GeV.
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页数：12
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