Long range rapidity correlations and jet production in high energy nuclear collisions

doi:10.1103/PhysRevC.80.064912

	Long range rapidity correlations and jet production in high energy nuclear collisions
	Abelev, B. I.3; Aggarwal, M. M.29; Ahammed, Z.46; Alakhverdyants, A. V.14; Anderson, B. D.15; Arkhipkin, D.6; Averichev, G. S.14; Balewski, J.20; Barannikova, O.3; Barnby, L. S.5
刊名	PHYSICAL REVIEW C
	2009-12-01
卷号	80 页码:9
ISSN号	0556-2813
DOI	10.1103/PhysRevC.80.064912
英文摘要	The STAR Collaboration at the Relativistic Heavy Ion Collider presents a systematic study of high-transverse-momentum charged-di-hadron correlations at small azimuthal pair separation Delta phi in d+Au and central Au+Au collisions at s(NN)=200 GeV. Significant correlated yield for pairs with large longitudinal separation Delta eta is observed in central Au+Au collisions, in contrast to d+Au collisions. The associated yield distribution in Delta eta x Delta phi can be decomposed into a narrow jet-like peak at small angular separation which has a similar shape to that found in d+Au collisions, and a component that is narrow in Delta phi and depends only weakly on Delta eta, the "ridge." Using two systematically independent determinations of the background normalization and shape, finite ridge yield is found to persist for trigger p(t)>6 GeV/c, indicating that it is correlated with jet production. The transverse-momentum spectrum of hadrons comprising the ridge is found to be similar to that of bulk particle production in the measured range (2 < p(t)< 4 GeV/c).
资助项目	Science and Technology Facilities Council[PP/F001061/1]
WOS关键词	QUARK-GLUON PLASMA ; COLLABORATION ; PERSPECTIVE ; RIDGE
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000273232700065
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/30631]
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.Moscow Engn Phys Inst, Moscow 115409, Russia 2.Creighton Univ, Omaha, NE 68178 USA 3.Univ Illinois, Chicago, IL 60607 USA 4.Argonne Natl Lab, Argonne, IL 60439 USA 5.Univ Birmingham, Birmingham, W Midlands, England 6.Brookhaven Natl Lab, Upton, NY 11973 USA 7.Univ Calif Davis, Davis, CA 95616 USA 8.Univ Calif Los Angeles, Los Angeles, CA 90095 USA 9.Inst Phys, Bhubaneswar 751005, Orissa, India 10.Indian Inst Technol, Bombay 400076, Maharashtra, India
推荐引用方式 GB/T 7714	Abelev, B. I.,Aggarwal, M. M.,Ahammed, Z.,et al. Long range rapidity correlations and jet production in high energy nuclear collisions[J]. PHYSICAL REVIEW C,2009,80:9.
APA	Abelev, B. I..,Aggarwal, M. M..,Ahammed, Z..,Alakhverdyants, A. V..,Anderson, B. D..,...&Zuo, J. X..(2009).Long range rapidity correlations and jet production in high energy nuclear collisions.PHYSICAL REVIEW C,80,9.
MLA	Abelev, B. I.,et al."Long range rapidity correlations and jet production in high energy nuclear collisions".PHYSICAL REVIEW C 80(2009):9.