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QCD equation of state for heavy ion collisions
Zhao, A. -Meng1; Shi, Yuan-Mei2,4; Li, Jian-Feng3,4; Zong, Hong-Shi4,5,6
2017-10-01
Source PublicationCHINESE PHYSICS C
ISSN1674-1137
Volume41Issue:10Pages:7
Corresponding AuthorZhao, A. -Meng(zhaoameng@cxxy.seu.edu.cn)
AbstractIn this work, we calculate the equation of state (EoS) of quark gluon-plasma (QGP) using the Cornwall-Jackiw- Tomboulis (CJT) effective action. We get the quark propagator by using the rank-1 separable model within the framework of the Dyson-Schwinger equations (DSEs). The results from CJT effective action are compared with lattice QCD data. We find that, when mu is small, our results generally fit the lattice QCD data when T > T-c, but show deviations at and below T-c. It can be concluded that the EoS of CJT is reliable when T > T-c. Then, by adopting the hydrodynamic code UVH2+1, we compare the CJT results of the multiplicity and elliptic flow v(2) with the PHENIX data and the results from the original EoS in UVH2+1. While the CJT results of multiplicities generally match the original UVH2+1 results and fit the experimental data, the CJT results of v(2) are slightly larger than the original UVH2+1 results for centralities smaller than 40% and smaller than the original UVH2+1 results for higher centralities.
Keywordheavy ion collisions equation of state multiplicity elliptic flow CJT effective action
DOI10.1088/1674-1137/41/10/103101
Indexed BySCI
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Nuclear ; Physics, Particles & Fields
WOS IDWOS:000412409900002
PublisherCHINESE PHYSICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/22737
Collection中国科学院紫金山天文台
Corresponding AuthorZhao, A. -Meng
Affiliation1.Southeast Univ, Dept Fdn, Chengxian Coll, Nanjing 210088, Jiangsu, Peoples R China
2.Nanjing Xiaozhuang Univ, Dept Phys & Elect Engn, Nanjing 211171, Jiangsu, Peoples R China
3.Nantong Univ, Coll Math & Phys, Nantong 226019, Peoples R China
4.Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China
5.Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China
6.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhao, A. -Meng,Shi, Yuan-Mei,Li, Jian-Feng,et al. QCD equation of state for heavy ion collisions[J]. CHINESE PHYSICS C,2017,41(10):7.
APA Zhao, A. -Meng,Shi, Yuan-Mei,Li, Jian-Feng,&Zong, Hong-Shi.(2017).QCD equation of state for heavy ion collisions.CHINESE PHYSICS C,41(10),7.
MLA Zhao, A. -Meng,et al."QCD equation of state for heavy ion collisions".CHINESE PHYSICS C 41.10(2017):7.
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