Beam-Energy Dependence of Charge Separation along the Magnetic Field in Au plus Au Collisions at RHIC

doi:10.1103/PhysRevLett.113.052302

	Beam-Energy Dependence of Charge Separation along the Magnetic Field in Au plus Au Collisions at RHIC
	Adamczyk, L.1; Adkins, J. K.23; Agakishiev, G.21; Aggarwal, M. M.35; Ahammed, Z.53; Alekseev, I.19; Alford, J.22; Anson, C. D.32; Aparin, A.21; Arkhipkin, D.4
刊名	PHYSICAL REVIEW LETTERS
	2014-07-30
卷号	113
ISSN号	0031-9007
DOI	10.1103/PhysRevLett.113.052302
文献子类	Article
英文摘要	Local parity-odd domains are theorized to form inside a quark-gluon plasma which has been produced in high-energy heavy-ion collisions. The local parity-odd domains manifest themselves as charge separation along the magnetic field axis via the chiral magnetic effect. The experimental observation of charge separation has previously been reported for heavy-ion collisions at the top RHIC energies. In this Letter, we present the results of the beam-energy dependence of the charge correlations in Au + Au collisions at midrapidity for center-of-mass energies of 7.7, 11.5, 19.6, 27, 39, and 62.4 GeV from the STAR experiment. After background subtraction, the signal gradually reduces with decreased beam energy and tends to vanish by 7.7 GeV. This implies the dominance of hadronic interactions over partonic ones at lower collision energies.
资助项目	National Research Foundation[NRF-2012004024]
WOS关键词	HEAVY-ION COLLISIONS ; PARITY VIOLATION ; HOT QCD
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000339969600004
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/49567]
专题	中国科学院近代物理研究所
通讯作者	Adamczyk, L.
作者单位	1.AGH Univ Sci & Technol, PL-30059 Krakow, Poland 2.Argonne Natl Lab, Argonne, IL 60439 USA 3.Univ Birmingham, Birmingham B15 2TT, W Midlands, England 4.Brookhaven Natl Lab, Upton, NY 11973 USA 5.Univ Calif Berkeley, Berkeley, CA 94720 USA 6.Univ Calif Davis, Davis, CA 95616 USA 7.Univ Calif Los Angeles, Los Angeles, CA 90095 USA 8.Univ Estadual Campinas, BR-13131 Sao Paulo, Brazil 9.Cent China Normal Univ HZNU, Wuhan 430079, Peoples R China 10.Univ Illinois, Chicago, IL 60607 USA
推荐引用方式 GB/T 7714	Adamczyk, L.,Adkins, J. K.,Agakishiev, G.,et al. Beam-Energy Dependence of Charge Separation along the Magnetic Field in Au plus Au Collisions at RHIC[J]. PHYSICAL REVIEW LETTERS,2014,113.
APA	Adamczyk, L..,Adkins, J. K..,Agakishiev, G..,Aggarwal, M. M..,Ahammed, Z..,...&STAR Collaboration.(2014).Beam-Energy Dependence of Charge Separation along the Magnetic Field in Au plus Au Collisions at RHIC.PHYSICAL REVIEW LETTERS,113.
MLA	Adamczyk, L.,et al."Beam-Energy Dependence of Charge Separation along the Magnetic Field in Au plus Au Collisions at RHIC".PHYSICAL REVIEW LETTERS 113(2014).