Azimuthal Charged-Particle Correlations and Possible Local Strong Parity Violation

doi:10.1103/PhysRevLett.103.251601

	Azimuthal Charged-Particle Correlations and Possible Local Strong Parity Violation
	Abelev, B. I.1; Aggarwal, M. M.30; Ahammed, Z.47; Alakhverdyants, A. V.16; Anderson, B. D.17; Arkhipkin, D.1,4; Averichev, G. S.16; Balewski, J.21; Barannikova, O.1; Barnby, L. S.3
刊名	PHYSICAL REVIEW LETTERS
	2009-12-18
卷号	103 页码:7
ISSN号	0031-9007
DOI	10.1103/PhysRevLett.103.251601
英文摘要	Parity-odd domains, corresponding to nontrivial topological solutions of the QCD vacuum, might be created during relativistic heavy-ion collisions. These domains are predicted to lead to charge separation of quarks along the system's orbital momentum axis. We investigate a three-particle azimuthal correlator which is a P even observable, but directly sensitive to the charge separation effect. We report measurements of charged hadrons near center-of-mass rapidity with this observable in Au+Au and Cu+Cu collisions at s(NN)=200 GeV using the STAR detector. A signal consistent with several expectations from the theory is detected. We discuss possible contributions from other effects that are not related to parity violation.
资助项目	Offices of NP and HEP within the U.S. DOE Office of Science ; U.S. NSF ; Sloan Foundation ; DFG cluster of excellence ; CNRS/IN2P3 ; STFC and EPSRC of the United Kingdom ; FAPESP CNPq of Brazil ; Ministry of Ed. and Sci. of the Russian Federation ; NNSFC ; CAS ; MoST ; MoE of China ; GA and MSMT of the Czech Republic ; FOM and NOW of the Netherlands ; DAE ; DST ; CSIR of India ; Polish Ministry of Sci. and Higher Ed. ; Korea Research Foundation ; Ministry of Sci., Ed. and Sports of the Rep. Of Croatia ; Russian Ministry of Sci. and Tech ; RosAtom of Russia
WOS关键词	HEAVY-ION COLLISIONS ; NUCLEAR COLLISIONS ; HOT QCD
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000272958300007
资助机构	Offices of NP and HEP within the U.S. DOE Office of Science ; U.S. NSF ; Sloan Foundation ; DFG cluster of excellence ; CNRS/IN2P3 ; STFC and EPSRC of the United Kingdom ; FAPESP CNPq of Brazil ; Ministry of Ed. and Sci. of the Russian Federation ; NNSFC ; CAS ; MoST ; MoE of China ; GA and MSMT of the Czech Republic ; FOM and NOW of the Netherlands ; DAE ; DST ; CSIR of India ; Polish Ministry of Sci. and Higher Ed. ; Korea Research Foundation ; Ministry of Sci., Ed. and Sports of the Rep. Of Croatia ; Russian Ministry of Sci. and Tech ; RosAtom of Russia
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/31206]
专题	中国科学院近代物理研究所
通讯作者	Abelev, B. I.
作者单位	1.Univ Illinois, Chicago, IL 60607 USA 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.Creighton Univ, Omaha, NE 68178 USA 10.Czech Tech Univ, Fac Nucl Sci & Phys Engn, CR-11519 Prague, Czech Republic
推荐引用方式 GB/T 7714	Abelev, B. I.,Aggarwal, M. M.,Ahammed, Z.,et al. Azimuthal Charged-Particle Correlations and Possible Local Strong Parity Violation[J]. PHYSICAL REVIEW LETTERS,2009,103:7.
APA	Abelev, B. I..,Aggarwal, M. M..,Ahammed, Z..,Alakhverdyants, A. V..,Anderson, B. D..,...&Zuo, J. X..(2009).Azimuthal Charged-Particle Correlations and Possible Local Strong Parity Violation.PHYSICAL REVIEW LETTERS,103,7.
MLA	Abelev, B. I.,et al."Azimuthal Charged-Particle Correlations and Possible Local Strong Parity Violation".PHYSICAL REVIEW LETTERS 103(2009):7.