Measurement of the cross section and longitudinal double-spin asymmetry for dijet production in polarized pp collisions at root s=200 GeV

doi:10.1103/PhysRevD.95.071103

	Measurement of the cross section and longitudinal double-spin asymmetry for dijet production in polarized pp collisions at root s=200 GeV
	Adamczyk, L.1; Adkins, J. K.19; Agakishiev, G.17; Aggarwal, M. M.31; Ahammed, Z.; Ajitanand, N. N.40; Alekseev, I.15,26; Anderson, D. M.42; Aoyama, R.46; Aparin, A.17
刊名	PHYSICAL REVIEW D
	2017-04-28
卷号	95 页码:8
ISSN号	2470-0010
DOI	10.1103/PhysRevD.95.071103
英文摘要	We report the first measurement of the longitudinal double-spin asymmetry A(LL) for midrapidity dijet production in polarized pp collisions at a center-of-mass energy of root s = 200 GeV. The dijet cross section was measured and is shown to be consistent with next-to-leading order (NLO) perturbative QCD predictions. A(LL) results are presented for two distinct topologies, defined by the jet pseudorapidities, and are compared to predictions from several recent NLO global analyses. The measured asymmetries, the first such correlation measurements, support those analyses that find positive gluon polarization at the level of roughly 0.2 over the region of Bjorken-x > 0.05.
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 ; NSFC ; CAS ; MoST ; MoE of China ; National Research Foundation of Korea ; NCKU (Taiwan) ; 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	PARTON DISTRIBUTIONS ; UNCERTAINTIES ; SCATTERING ; LHC
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000400254500001
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 ; NSFC ; CAS ; MoST ; MoE of China ; National Research Foundation of Korea ; NCKU (Taiwan) ; 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/113462/45316]
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, FPACS, 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, Wuhan 430079, Hunan, 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. Measurement of the cross section and longitudinal double-spin asymmetry for dijet production in polarized pp collisions at root s=200 GeV[J]. PHYSICAL REVIEW D,2017,95:8.
APA	Adamczyk, L..,Adkins, J. K..,Agakishiev, G..,Aggarwal, M. M..,Ahammed, Z..,...&Zyzak, M..(2017).Measurement of the cross section and longitudinal double-spin asymmetry for dijet production in polarized pp collisions at root s=200 GeV.PHYSICAL REVIEW D,95,8.
MLA	Adamczyk, L.,et al."Measurement of the cross section and longitudinal double-spin asymmetry for dijet production in polarized pp collisions at root s=200 GeV".PHYSICAL REVIEW D 95(2017):8.