Underlying event measurements in p plus p collisions at root s=200 GeV at RHIC

doi:10.1103/PhysRevD.101.052004

	Underlying event measurements in p plus p collisions at root s=200 GeV at RHIC
	Adam, J.7; Adamczyk, L.3; Adams, J. R.40; Adkins, J. K.31; Agakishiev, G.29; Aggarwal, M. M.41; Ahammed, Z.59; Alekseev, I 4,36; Anderson, D. M.54; Aparin, A.29
刊名	PHYSICAL REVIEW D
	2020-03-10
卷号	101 期号:5 页码:9
ISSN号	2470-0010
DOI	10.1103/PhysRevD.101.052004
通讯作者	Adam, J.()
英文摘要	Particle production sensitive to nonfactorizable and nonperturbative processes that contribute to the underlying event associated with a high transverse momentum (p(T)) jet in proton thorn proton collisions at root s = 200 GeV is studied with the STAR detector. Each event is divided into three regions based on the azimuthal angle with respect to the highest-p(T) jet direction: in the leading jet direction ("Toward"), opposite to the leading jet ("Away"), and perpendicular to the leading jet ("Transverse"). In the Transverse region, the average charged particle density is found to be between 0.4 and 0.6 and the mean transverse momentum, < p(T)>, between 0.5 and 0.7 GeV/c for particles with p(T) > 0.2 GeV/c at mid-pseudorapidity (vertical bar eta vertical bar < 1) and jet p(T) > 15 GeV/c. Both average particle density and < p(T)> depend weakly on the leading jet p(T). Closer inspection of the Transverse region hints that contributions to the underlying event from initial- and final-state radiation are significantly smaller in these collisions than at the higher energies, up to 13 TeV, recorded at the LHC. Underlying event measurements associated with a high-p(T) jet will contribute to our understanding of QCD processes at hard and soft scales at RHIC energies, as well as provide constraints to modeling of underlying event dynamics.
资助项目	RHIC Operations Group at BNL ; 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 ; 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 of the Government of India ; 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
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000518818900001
资助机构	RHIC Operations Group at BNL ; 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 ; 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 of the Government of India ; 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
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/140918]
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.Univ Texas, Austin, TX 78712 USA 2.Abilene Christian Univ, Abilene, TX 79699 USA 3.AGH Univ Sci & Technol, FPACS, PL-30059 Krakow, Poland 4.Kurchatov Inst, Alikhanov Inst Theoret & Expt Phys NRC, 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. Underlying event measurements in p plus p collisions at root s=200 GeV at RHIC[J]. PHYSICAL REVIEW D,2020,101(5):9.
APA	Adam, J..,Adamczyk, L..,Adams, J. R..,Adkins, J. K..,Agakishiev, G..,...&Zyzak, M..(2020).Underlying event measurements in p plus p collisions at root s=200 GeV at RHIC.PHYSICAL REVIEW D,101(5),9.
MLA	Adam, J.,et al."Underlying event measurements in p plus p collisions at root s=200 GeV at RHIC".PHYSICAL REVIEW D 101.5(2020):9.