Observation of Transverse Spin-Dependent Azimuthal Correlations of Charged Pion Pairs in p(up arrow) + p at root s=200 GeV

doi:10.1103/PhysRevLett.115.242501

	Observation of Transverse Spin-Dependent Azimuthal Correlations of Charged Pion Pairs in p(up arrow) + p at root s=200 GeV
	Adamczyk, L.1; Adkins, J. K.20; Agakishiev, G.18; Aggarwal, M. M.30; Ahammed, Z.47; Alekseev, I.16; Alford, J.19; Aparin, A.18; Arkhipkin, D.3; Aschenauer, E. C.3
刊名	PHYSICAL REVIEW LETTERS
	2015-12-08
卷号	115 页码:7
ISSN号	0031-9007
DOI	10.1103/PhysRevLett.115.242501
英文摘要	We report the observation of transverse polarization-dependent azimuthal correlations in charged pion pair production with the STAR experiment in p(up arrow) + p collisions at RHIC. These correlations directly probe quark transversity distributions. We measure signals in excess of 5 standard deviations at high transverse momenta, at high pseudorapidities eta > 0.5, and for pair masses around the mass of the rho meson. This is the first direct transversity measurement in p + p collisions.
资助项目	Office of Nuclear Physics within the U.S. DOE Office of Science ; U.S. NSF ; Ministry of Education and Science of the Russian Federation ; NNSFC ; CAS ; MoST ; MoE of China ; Korean Research Foundation ; GA and MSMT of the Czech Republic ; FIAS of Germany ; DAE ; DST ; UGC of India ; National Science Centre of Poland ; National Research Foundation ; Ministry of Science, Education and Sports of the Republic of Croatia ; RosAtom of Russia
WOS关键词	DISTRIBUTIONS ; POLARIZATION ; NUCLEON ; QCD
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000366106700003
资助机构	Office of Nuclear Physics within the U.S. DOE Office of Science ; U.S. NSF ; Ministry of Education and Science of the Russian Federation ; NNSFC ; CAS ; MoST ; MoE of China ; Korean Research Foundation ; GA and MSMT of the Czech Republic ; FIAS of Germany ; DAE ; DST ; UGC of India ; National Science Centre of Poland ; National Research Foundation ; Ministry of Science, Education and Sports of the Republic of Croatia ; RosAtom of Russia
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/41193]
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.Brookhaven Natl Lab, Upton, NY 11973 USA 4.Univ Calif Berkeley, Berkeley, CA 94720 USA 5.Univ Calif Davis, Davis, CA 95616 USA 6.Univ Calif Los Angeles, Los Angeles, CA 90095 USA 7.Cent China Normal Univ HZNU, Wuhan 430079, Peoples R China 8.Univ Illinois, Chicago, IL 60607 USA 9.Creighton Univ, Omaha, NE 68178 USA 10.Czech Tech Univ, FNSPE, Prague 11519, Czech Republic
推荐引用方式 GB/T 7714	Adamczyk, L.,Adkins, J. K.,Agakishiev, G.,et al. Observation of Transverse Spin-Dependent Azimuthal Correlations of Charged Pion Pairs in p(up arrow) + p at root s=200 GeV[J]. PHYSICAL REVIEW LETTERS,2015,115:7.
APA	Adamczyk, L..,Adkins, J. K..,Agakishiev, G..,Aggarwal, M. M..,Ahammed, Z..,...&Zyzak, M..(2015).Observation of Transverse Spin-Dependent Azimuthal Correlations of Charged Pion Pairs in p(up arrow) + p at root s=200 GeV.PHYSICAL REVIEW LETTERS,115,7.
MLA	Adamczyk, L.,et al."Observation of Transverse Spin-Dependent Azimuthal Correlations of Charged Pion Pairs in p(up arrow) + p at root s=200 GeV".PHYSICAL REVIEW LETTERS 115(2015):7.