Observation of an Energy-Dependent Difference in Elliptic Flow between Particles and Antiparticles in Relativistic Heavy Ion Collisions

doi:10.1103/PhysRevLett.110.142301

	Observation of an Energy-Dependent Difference in Elliptic Flow between Particles and Antiparticles in Relativistic Heavy Ion Collisions
	Adamczyk, L.1; Adkins, J. K.23; Agakishiev, G.21; Aggarwal, M. M.34; Ahammed, Z.53; Alekseev, I.19; Alford, J.22; Anson, C. D.31; Aparin, A.21; Arkhipkin, D.4
刊名	PHYSICAL REVIEW LETTERS
	2013-04-02
卷号	110
ISSN号	0031-9007
DOI	10.1103/PhysRevLett.110.142301
文献子类	Article
英文摘要	Elliptic flow (v(2)) values for identified particles at midrapidity in Au + Au collisions, measured by the STAR experiment in the beam energy scan at RHIC at root s(NN) = 7.7-62.4 GeV, are presented. A beamenergy-dependent difference of the values of v(2) between particles and corresponding antiparticles was observed. The difference increases with decreasing beam energy and is larger for baryons compared to mesons. This implies that, at lower energies, particles and antiparticles are not consistent with the universal number-of-constituent-quark scaling of v(2) that was observed at root s(NN) = 200 GeV. DOI: 10.1103/PhysRevLett.110.142301
WOS关键词	NUCLEAR COLLISIONS
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000316959200011
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/48465]
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, Krakow, Poland 2.Argonne Natl Lab, Argonne, IL 60439 USA 3.Univ Birmingham, Birmingham, 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, 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. Observation of an Energy-Dependent Difference in Elliptic Flow between Particles and Antiparticles in Relativistic Heavy Ion Collisions[J]. PHYSICAL REVIEW LETTERS,2013,110.
APA	Adamczyk, L..,Adkins, J. K..,Agakishiev, G..,Aggarwal, M. M..,Ahammed, Z..,...&Star Collaboration.(2013).Observation of an Energy-Dependent Difference in Elliptic Flow between Particles and Antiparticles in Relativistic Heavy Ion Collisions.PHYSICAL REVIEW LETTERS,110.
MLA	Adamczyk, L.,et al."Observation of an Energy-Dependent Difference in Elliptic Flow between Particles and Antiparticles in Relativistic Heavy Ion Collisions".PHYSICAL REVIEW LETTERS 110(2013).