Elliptic flow splitting between protons and antiprotons from hadronic potentials

doi:10.1142/S0217732320502892

	Elliptic flow splitting between protons and antiprotons from hadronic potentials
	Li, Pengcheng 2,3; Wang, Yongjia 3; Steinheimer, Jan 1; Li, Qingfeng 3,4; Zhang, Hongfei 2
刊名	MODERN PHYSICS LETTERS A
	2020-11-20
卷号	35 期号:35 页码:14
关键词	Heavy ion collisions elliptic flow mean field potential
ISSN号	0217-7323
DOI	10.1142/S0217732320502892
通讯作者	Li, Qingfeng(liqf@zjhu.edu.cn)
英文摘要	The difference in elliptic flow between protons and antiprotons, produced in Au-197 +Au-197 collisions at center-of-mass energies root s(NN) = 5-12GeV, is studied within a modified version of the ultra-relativistic quantum molecular dynamics (UrQMD) model. Two different model scenarios are compared: the cascade mode and the mean field mode which includes potential interactions for both formed and pre-formed hadrons. The model results for the elliptic flow of protons and the relative elliptic flow difference between protons and antiprotons obtained from the mean field mode agree with the available experimental data, while the elliptic flow difference is near zero for the cascade mode. Our results show that the elliptic flow splitting, observed for particles and antiparticles, can be explained by the inclusion of proper hadronic interactions. In addition, the difference in elliptic flow between protons and antiprotons depends on the centrality and the rapidity window. With smaller centrality and/or rapidity acceptance, the observed elliptic flow splitting is more sensitive to the beam energy, indicating a strong net baryon density dependence of the effect. We propose to confirm this splitting at the upcoming experiments from Beam Energy Scan (BES) Phase-II at Relativistic Heavy Ion Collider (RHIC), the Compressed Baryonic Matter (CBM) at Facility for Antiproton and Ion Research (FAIR), High Intensity heavy ion Accelerator Facility (HIAF) and Nuclotron-based Ion Collider fAcility (NICA).
资助项目	National Natural Science Foundation of China[11875125] ; National Natural Science Foundation of China[11947410] ; National Natural Science Foundation of China[11675066] ; Zhejiang Provincial Natural Science Foundation of China[LY19A050001] ; Zhejiang Provincial Natural Science Foundation of China[LY18A050002] ; Ten Thousand Talent Program of Zhejiang province ; Samson AG ; Walter Greiner Gesellschaft zur Forderung der physikalischen Grundlagenforschung e.V.
WOS关键词	QUANTUM MOLECULAR-DYNAMICS ; NUCLEAR-EQUATION ; COLLISIONS ; STATE ; DENSITY
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
出版者	WORLD SCIENTIFIC PUBL CO PTE LTD
WOS记录号	WOS:000599872300006
资助机构	National Natural Science Foundation of China ; Zhejiang Provincial Natural Science Foundation of China ; Ten Thousand Talent Program of Zhejiang province ; Samson AG ; Walter Greiner Gesellschaft zur Forderung der physikalischen Grundlagenforschung e.V.
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/138465]
专题	中国科学院近代物理研究所
通讯作者	Li, Qingfeng
作者单位	1.Frankfurt Inst Adv Studies, Ruth Moufang Str 1, D-60438 Frankfurt, Germany 2.Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China 3.Huzhou Univ, Sch Sci, Huzhou 313000, Peoples R China 4.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Li, Pengcheng,Wang, Yongjia,Steinheimer, Jan,et al. Elliptic flow splitting between protons and antiprotons from hadronic potentials[J]. MODERN PHYSICS LETTERS A,2020,35(35):14.
APA	Li, Pengcheng,Wang, Yongjia,Steinheimer, Jan,Li, Qingfeng,&Zhang, Hongfei.(2020).Elliptic flow splitting between protons and antiprotons from hadronic potentials.MODERN PHYSICS LETTERS A,35(35),14.
MLA	Li, Pengcheng,et al."Elliptic flow splitting between protons and antiprotons from hadronic potentials".MODERN PHYSICS LETTERS A 35.35(2020):14.