upsilon cross section in p plus p collisions at root s=200 GeV

doi:10.1103/PhysRevD.82.012004

	upsilon cross section in p plus p collisions at root s=200 GeV
	Abelev, B. I.1; Aggarwal, M. M.31; Ahammed, Z.48; Alakhverdyants, A. V.17; Anderson, B. D.18; Arkhipkin, D.4; Averichev, G. S.17; Balewski, J.22; Barnby, L. S.3; Baumgart, S.53
刊名	PHYSICAL REVIEW D
	2010-07-29
卷号	82 页码:17
ISSN号	1550-7998
DOI	10.1103/PhysRevD.82.012004
英文摘要	We report on a measurement of the gamma(1S + 2S + 3S) -> e(+)e(-) cross section at midrapidity in p + p collisions at root s = 200 GeV. We find the cross section to be 114 +/- 38(stat + fit)(-24)(+23)(syst) pb. Perturbative QCD calculations at next-to-leading order in the color evaporation model are in agreement with our measurement, while calculations in the color singlet model underestimate it by 2 sigma. Our result is consistent with the trend seen in world data as a function of the center-of-mass energy of the collision and extends the availability of gamma data to RHIC energies. The dielectron continuum in the invariant-mass range near the gamma is also studied to obtain a combined yield of e(+)e(-) pairs from the sum of the Drell-Yan process and b-(b) over bar production.
资助项目	RHIC ; RCF at BNL ; NERSC Center at LBNL ; Open Science Grid consortium ; U.S. DOE Office of Science ; U.S. NSF ; Sloan Foundation ; DFG cluster of excellence "Origin and Structure of the Universe'' of Germany ; CNRS/IN2P3 ; STFC ; EPSRC, United Kingdom ; FAPESP CNPq of Brazil ; Ministry of Education and Science of the Russian Federation ; NNSFC ; CAS ; MoST ; MoE of China ; GA ; MSMT of the Czech Republic ; FOM ; NWO of the Netherlands ; DAE ; DST ; CSIR of India ; Polish Ministry of Science and Higher Education ; Korea Research Foundation ; Ministry of Science, Education and Sports of the Republic Of Croatia ; Russian Ministry of Science and Technology ; RosAtom of Russia
WOS关键词	NUCLEUS-NUCLEUS COLLISIONS ; QUARK-GLUON PLASMA ; J-PSI ; SUPPRESSION ; RESONANCES ; DIMUON ; GAMMA
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000280475500002
资助机构	RHIC ; RCF at BNL ; NERSC Center at LBNL ; Open Science Grid consortium ; U.S. DOE Office of Science ; U.S. NSF ; Sloan Foundation ; DFG cluster of excellence "Origin and Structure of the Universe'' of Germany ; CNRS/IN2P3 ; STFC ; EPSRC, United Kingdom ; FAPESP CNPq of Brazil ; Ministry of Education and Science of the Russian Federation ; NNSFC ; CAS ; MoST ; MoE of China ; GA ; MSMT of the Czech Republic ; FOM ; NWO of the Netherlands ; DAE ; DST ; CSIR of India ; Polish Ministry of Science and Higher Education ; Korea Research Foundation ; Ministry of Science, Education and Sports of the Republic Of Croatia ; Russian Ministry of Science and Technology ; RosAtom of Russia
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/32906]
专题	中国科学院近代物理研究所
通讯作者	Abelev, B. I.
作者单位	1.Univ Illinois, Chicago, IL 60607 USA 2.Argonne Natl Lab, Argonne, IL 60439 USA 3.Univ Birmingham, Birmingham, W Midlands, England 4.Brookhaven Natl Lab, Upton, NY 11973 USA 5.Univ Calif Berkeley, Berkeley, CA 94720 USA 6.Univ Calif Davis, Davis, CA 95616 USA 7.Univ Calif Los Angeles, Los Angeles, CA 90095 USA 8.Univ Estadual Campinas, Sao Paulo, Brazil 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	Abelev, B. I.,Aggarwal, M. M.,Ahammed, Z.,et al. upsilon cross section in p plus p collisions at root s=200 GeV[J]. PHYSICAL REVIEW D,2010,82:17.
APA	Abelev, B. I..,Aggarwal, M. M..,Ahammed, Z..,Alakhverdyants, A. V..,Anderson, B. D..,...&Zoulkarneeva, Y..(2010).upsilon cross section in p plus p collisions at root s=200 GeV.PHYSICAL REVIEW D,82,17.
MLA	Abelev, B. I.,et al."upsilon cross section in p plus p collisions at root s=200 GeV".PHYSICAL REVIEW D 82(2010):17.