Transverse spin transfer to Lambda and (Lambda)over-bar hyperons in polarized proton-proton collisions at root s=200 GeV

doi:10.1103/PhysRevD.98.091103

	Transverse spin transfer to Lambda and (Lambda)over-bar hyperons in polarized proton-proton collisions at root s=200 GeV
	Adam, J.12; Adamczyk, L.2; Adams, J. R.35; Adkins, J. K.26; Agakishiev, G.24; Aggarwal, M. M.37; Ahammed, Z.57; Alekseev, I.3,31; Anderson, D. M.51; Aoyama, R.54
刊名	PHYSICAL REVIEW D
	2018-11-29
卷号	98
ISSN号	2470-0010
DOI	10.1103/PhysRevD.98.091103
英文摘要	The transverse spin transfer from polarized protons to Lambda and (Lambda) over bar hyperons is expected to provide sensitivity to the transversity distribution of the nucleon and to the transversely polarized fragmentation functions. We report the first measurement of the transverse spin transfer to Lambda and (Lambda) over bar along the polarization direction of the fragmenting quark, D-TT, in transversely polarized proton-proton collisions at root s = 200 GeV with the STAR detector at RHIC. The data correspond to an integrated luminosity of 18 pb(-1) and cover the pseudorapidity range vertical bar eta vertical bar < 1.2 and transverse momenta p(T) up to 8 GeV/c. The dependence on p(T) and eta are presented. The D-TT results are found to be comparable with a model prediction and are also consistent with zero within uncertainties.
资助项目	Major State Basic Research Development Program in China[2014CB845406]
WOS关键词	PP COLLISIONS
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000451598800001
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/64466]
专题	中国科学院近代物理研究所
通讯作者	Adam, J.
作者单位	1.Abilene Christian Univ, Abilene, TX 79699 USA 2.AGH Univ Sci & Technol, FPACS, PL-30059 Krakow, Poland 3.Alikhanov Inst Theoret & Expt Phys, Moscow 117218, Russia 4.Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA 5.Brookhaven Natl Lab, Upton, NY 11973 USA 6.Univ Calif Berkeley, Berkeley, CA 94720 USA 7.Univ Calif Davis, Davis, CA 95616 USA 8.Univ Calif Los Angeles, Los Angeles, CA 90095 USA 9.Univ Calif Riverside, Riverside, CA 92521 USA 10.Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Adam, J.,Adamczyk, L.,Adams, J. R.,et al. Transverse spin transfer to Lambda and (Lambda)over-bar hyperons in polarized proton-proton collisions at root s=200 GeV[J]. PHYSICAL REVIEW D,2018,98.
APA	Adam, J..,Adamczyk, L..,Adams, J. R..,Adkins, J. K..,Agakishiev, G..,...&STAR Collaboration.(2018).Transverse spin transfer to Lambda and (Lambda)over-bar hyperons in polarized proton-proton collisions at root s=200 GeV.PHYSICAL REVIEW D,98.
MLA	Adam, J.,et al."Transverse spin transfer to Lambda and (Lambda)over-bar hyperons in polarized proton-proton collisions at root s=200 GeV".PHYSICAL REVIEW D 98(2018).