Measurement of inclusive J/psi polarization in p plus p collisions at root s=200 GeV by the STAR experiment

doi:10.1103/PhysRevD.102.092009

	Measurement of inclusive J/psi polarization in p plus p collisions at root s=200 GeV by the STAR experiment
	Adam, J.7; Adamczyk, L.3; Adams, J. R.39; Adkins, J. K.30; Agakishiev, G.28; Aggarwal, M. M.41; Ahammed, Z.61; Alekseev, I 4,35; Anderson, D. M.55; Aparin, A.28
刊名	PHYSICAL REVIEW D
	2020-11-20
卷号	102 期号:9 页码:15
ISSN号	2470-0010
DOI	10.1103/PhysRevD.102.092009
通讯作者	Adam, J.()
英文摘要	We report on new measurements of inclusive J/psi polarization at midrapidity in p + p collisions at root s = 200 GeV by the STAR experiment at the Relativistic Heavy Ion Collider. The polarization parameters, lambda(theta), lambda(phi), and lambda(theta phi), are measured as a function of transverse momentum (p(T)) in both the helicity and Collins-Soper (CS) reference frames within p(T) < 10 GeV/c. Except for lambda(0) in the CS frame at the highest measured p(T), all three polarization parameters are consistent with 0 in both reference frames without any strong p(T) dependence. Several model calculations are compared with data, and the one using the Color Glass Condensate effective field theory coupled with nonrelativistic QCD gives the best overall description of the experimental results, even though other models cannot be ruled out due to experimental uncertainties.
资助项目	RHIC Operations Group ; RCF at BNL ; NERSC Center at LBNL ; Open Science Grid consortium ; Office of Nuclear Physics within the U.S. DOE Office of Science ; U.S. National Science Foundation ; Ministry of Education and Science of the Russian Federation ; National Natural Science Foundation of China ; Chinese Academy of Science ; Ministry of Science and Technology of China ; Chinese Ministry of Education ; Higher Education Sprout Project by Ministry of Education at NCKU ; National Research Foundation of Korea ; Czech Science Foundation ; Ministry of Education, Youth and Sports of the Czech Republic ; Hungarian National Research, Development and Innovation Office ; New National Excellency Programme of the Hungarian Ministry of Human Capacities ; Department of Atomic Energy ; Department of Science and Technology of the Government of India ; National Science Centre of Poland ; Ministry of Science Education and Sports of the Republic of Croatia ; RosAtom of Russia ; German Bundesministerium fur Bildung, Wissenschaft, Forschung and Technologie (BMBF) ; Helmholtz Association ; Ministry of Education, Culture, Sports, Science, and Technology (MEXT) ; Japan Society for the Promotion of Science (JSPS)
WOS关键词	PRODUCTION CROSS-SECTION ; ANGULAR-DISTRIBUTION ; HADROPRODUCTION ; MULTIPLICITY
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000591182900001
资助机构	RHIC Operations Group ; RCF at BNL ; NERSC Center at LBNL ; Open Science Grid consortium ; Office of Nuclear Physics within the U.S. DOE Office of Science ; U.S. National Science Foundation ; Ministry of Education and Science of the Russian Federation ; National Natural Science Foundation of China ; Chinese Academy of Science ; Ministry of Science and Technology of China ; Chinese Ministry of Education ; Higher Education Sprout Project by Ministry of Education at NCKU ; National Research Foundation of Korea ; Czech Science Foundation ; Ministry of Education, Youth and Sports of the Czech Republic ; Hungarian National Research, Development and Innovation Office ; New National Excellency Programme of the Hungarian Ministry of Human Capacities ; Department of Atomic Energy ; Department of Science and Technology of the Government of India ; National Science Centre of Poland ; Ministry of Science Education and Sports of the Republic of Croatia ; RosAtom of Russia ; German Bundesministerium fur Bildung, Wissenschaft, Forschung and Technologie (BMBF) ; Helmholtz Association ; Ministry of Education, Culture, Sports, Science, and Technology (MEXT) ; Japan Society for the Promotion of Science (JSPS)
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/139473]
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.Creighton Univ, Omaha, NE 68178 USA 2.Abilene Christian Univ, Abilene, TX 79699 USA 3.AGH Univ Sci & Technol, FPACS, PL-30059 Krakow, Poland 4.NRC Kurchatov Inst, Alikhanov Inst Theoret & Expt Phys, Moscow 117218, Russia 5.Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA 6.Amer Univ Cairo, New Cairo 11835, Egypt 7.Brookhaven Natl Lab, Upton, NY 11973 USA 8.Univ Calif Berkeley, Berkeley, CA 94720 USA 9.Univ Calif Davis, Davis, CA 95616 USA 10.Univ Calif Los Angeles, Los Angeles, CA 90095 USA
推荐引用方式 GB/T 7714	Adam, J.,Adamczyk, L.,Adams, J. R.,et al. Measurement of inclusive J/psi polarization in p plus p collisions at root s=200 GeV by the STAR experiment[J]. PHYSICAL REVIEW D,2020,102(9):15.
APA	Adam, J..,Adamczyk, L..,Adams, J. R..,Adkins, J. K..,Agakishiev, G..,...&Zyzak, M..(2020).Measurement of inclusive J/psi polarization in p plus p collisions at root s=200 GeV by the STAR experiment.PHYSICAL REVIEW D,102(9),15.
MLA	Adam, J.,et al."Measurement of inclusive J/psi polarization in p plus p collisions at root s=200 GeV by the STAR experiment".PHYSICAL REVIEW D 102.9(2020):15.