Explore the QCD phase transition phenomena from a multiphase transport model

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英文篇名：Explore the QCD phase transition phenomena from a multiphase transport model 作者：XiaoHai ; Jin ; JinHui ; Chen ; ZiWei ; Lin ; GuoLiang ; Ma ; YuGang ; Ma ; Song ; Zhang 英文作者：XiaoHai Jin;JinHui Chen;ZiWei Lin;GuoLiang Ma;YuGang Ma;Song Zhang;Shanghai Institute of Applied Physics, Chinese Academy of Sciences;University of Chinese Academy of Sciences;Department of Physics, East Carolina University;Key Laboratory of Quarks and Lepton Physics (MOE) and Institute of Particle Physics, Central China Normal University; 英文关键词：QCD phase diagram;;parton density fluctuation;;AMPT model 中文刊名：JGXG 英文刊名：中国科学:物理学 力学 天文学(英文版) 机构：Shanghai Institute of Applied Physics, Chinese Academy of Sciences;University of Chinese Academy of Sciences;Department of Physics, East Carolina University;Key Laboratory of Quarks and Lepton Physics (MOE) and Institute of Particle Physics, Central China Normal University; 出版日期：2018-08-27 11:32 出版单位：Science China(Physics,Mechanics & Astronomy) 年：2019 期：v.62 基金：supported by the Major State Basic Research Development Program in China(Grant Nos.2014CB845400,and 2015CB856904);; the National Natural Science Foundation of China(Grant Nos.11775288,11421505,11628508,and 11520101004) 语种：英文; 页：JGXG201901007 页数：7 CN：01 ISSN：11-5849/N 分类号：46-52

摘要

We study the phase structure of QCD matter in the framework of a multiphase transport model by implementing a strong local parton density fluctuation scenario. Our calculations on the beam energy dependence of net-proton high moment show that local parton density fluctuation only has a small effect. But it becomes important when all baryons are included. We then study the effect on elliptic flow and find that an enhanced local parton density fluctuation leads to a significant effect on protons but a small effect on pions. Our study provides a reference of transport dynamics on QCD phase transition phenomena and will be relevant for the upcoming phase II of the beam energy scan program at RHIC.
        We study the phase structure of QCD matter in the framework of a multiphase transport model by implementing a strong local parton density fluctuation scenario. Our calculations on the beam energy dependence of net-proton high moment show that local parton density fluctuation only has a small effect. But it becomes important when all baryons are included. We then study the effect on elliptic flow and find that an enhanced local parton density fluctuation leads to a significant effect on protons but a small effect on pions. Our study provides a reference of transport dynamics on QCD phase transition phenomena and will be relevant for the upcoming phase II of the beam energy scan program at RHIC.

引文

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