J/ψ production versus transverse momentum and rapidity in p+p collisions at √s=200 GeV

被引:168
作者
Adare, A. [1 ]
Afanasiev, S.
Aidala, C.
Ajitanand, N. N.
Akiba, Y.
Al-Bataineh, H.
Alexander, J.
Aoki, K.
Aphecetche, L.
Armendariz, R.
Aronson, S. H.
Asai, J.
Atomssa, E. T.
Averbeck, R.
Awes, T. C.
Azmoun, B.
Babintsev, V.
Baksay, G.
Baksay, L.
Baldisseri, A.
Barish, K. N.
Barnes, P. D.
Bassalleck, B.
Bathe, S.
Batsouli, S.
Baublis, V.
Bazilevsky, A.
Belikov, S.
Bennett, R.
Berdnikov, Y.
Bickley, A.
Boissevain, J. G.
Borel, H.
Boyle, K.
Brooks, M. L.
Buesching, H.
Bumazhnov, V.
Bunce, G.
Butsyk, S.
Campbell, S.
Chang, B. S.
Charvet, J. -L.
Chernichenko, S.
Chiba, J.
Chi, C. Y.
Chiu, M.
Choi, I. J.
Chujo, T.
Chung, P.
Churyn, A.
机构
[1] Univ Colorado, Boulder, CO 80309 USA
[2] Abilene Christian Univ, Abilene, TX 79699 USA
[3] Banaras Hindu Univ, Dept Phys, Varanasi 221005, Uttar Pradesh, India
[4] Brookhaven Natl Lab, Upton, NY 11973 USA
[5] Univ Calif Riverside, Riverside, CA 92521 USA
[6] Charles Univ Prague, CR-11636 Prague, Czech Republic
[7] China Inst Atom Energy, Beijing, Peoples R China
[8] Univ Tokyo, Grad Sch Sci, Ctr Nucl Study, Bunkyo Ku, Tokyo 1130033, Japan
[9] Columbia Univ, New York, NY 10027 USA
[10] Nevis Labs, New York, NY 10533 USA
[11] Czech Tech Univ, Prague 16636 6, Czech Republic
[12] CEA Saclay, Dapnia, F-91191 Gif Sur Yvette, France
[13] Debrecen Univ, H-4010 Debrecen, Hungary
[14] Eotvos Lorand Univ, ELTE, H-1117 Budapest, Hungary
[15] Florida Inst Technol, Melbourne, FL 32901 USA
[16] Florida State Univ, Tallahassee, FL 32306 USA
[17] Georgia State Univ, Atlanta, GA 30303 USA
[18] Hiroshima Univ, Higashihiroshima 7398526, Japan
[19] State Res Ctr Russian Federat, Inst High Energy Phys, IHEP Protvino, Protvino 142281, Russia
[20] Univ Illinois, Urbana, IL 61801 USA
[21] Acad Sci Czech Republic, Inst Phys, Prague 18221 8, Czech Republic
[22] Iowa State Univ, Ames, IA 50011 USA
[23] Joint Inst Nucl Res, Dubna 141980, Russia
[24] KEK, High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan
[25] Hungarian Acad Sci, KFKI Res Inst Particle & Nucl Phys, H-1525 Budapest 114, Hungary
[26] Korea Univ, Seoul 136701, South Korea
[27] Russian Res Ctr Kurchatov Inst, Moscow, Russia
[28] Kyoto Univ, Kyoto 6068502, Japan
[29] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France
[30] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA
[31] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
[32] Univ Blaise Pascal, CNRS, IN2P3, LPC, F-63177 Aubiere, France
[33] Lund Univ, Dept Phys, SE-22100 Lund, Sweden
[34] Univ Munster, Inst Kernphys, D-48149 Munster, Germany
[35] Myongji Univ, Yongin 449728, Kyonggido, South Korea
[36] Nagasaki Inst Appl Sci, Nagasaki 8510193, Japan
[37] Univ New Mexico, Albuquerque, NM 87131 USA
[38] New Mexico State Univ, Las Cruces, NM 88003 USA
[39] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA
[40] Univ Paris 11, CNRS, IN2P3, IPN Orsay, F-91406 Orsay, France
[41] Peking Univ, Beijing 100871, Peoples R China
[42] Petersburg Nucl Phys Inst, Gatchina 188300, Russia
[43] RIKEN, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan
[44] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA
[45] Rikkyo Univ, Dept Phys, Tokyo 1718501, Japan
[46] St Petersburg State Univ, St Petersburg, Russia
[47] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil
[48] Seoul Natl Univ, Syst Elect Lab, Seoul, South Korea
[49] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA
[50] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA
关键词
D O I
10.1103/PhysRevLett.98.232002
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
J/psi production in p+p collisions at root s=200 GeV has been measured by the PHENIX experiment at the BNL Relativistic Heavy Ion Collider over a rapidity range of -2.2 < y < 2.2 and a transverse momentum range of 0 < p(T)< 9 GeV/c. The size of the present data set allows a detailed measurement of both the p(T) and the rapidity distributions and is sufficient to constrain production models. The total cross section times the branching ratio is B-ll sigma(J/psi)(pp)=178 +/- 3(stat)+/- 53(sys)+/- 18(norm) nb.
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页数:6
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