Measurement of charm and bottom production from semileptonic hadron decays in p plus p collisions at √s=200 GeV

被引:8
|
作者
Aidala, C. [41 ]
Akiba, Y. [53 ,54 ]
Alfred, M. [24 ]
Andrieux, V [41 ]
Apadula, N. [29 ]
Asano, H. [34 ,53 ]
Azmoun, B. [7 ]
Babintsev, V [25 ]
Bandara, N. S. [40 ]
Barish, K. N. [8 ]
Bathe, S. [5 ,54 ]
Bazilevsky, A. [7 ]
Beaumier, M. [8 ]
Belmont, R. [12 ,47 ]
Berdnikov, A. [56 ]
Berdnikov, Y. [56 ]
Blau, D. S. [33 ,44 ]
Bok, J. S. [46 ]
Brooks, M. L. [36 ]
Bryslawskyj, J. [5 ,8 ]
Bumazhnov, V [25 ]
Campbell, S. [13 ,14 ]
Roman, V. Canoa [59 ]
Cervantes, R. [59 ]
Chi, C. Y. [13 ,14 ]
Chiu, M. [7 ]
Choi, I. J. [26 ]
Choi, J. B. [10 ]
Citron, Z. [64 ]
Connors, M. [22 ,54 ]
Cronin, N. [59 ]
Csanad, M. [17 ]
Csorgo, T. [18 ,65 ]
Danley, T. W. [48 ]
Daugherity, M. S. [1 ]
David, G. [7 ,16 ,59 ]
DeBlasio, K. [45 ]
Dehmelt, K. [59 ]
Denisov, A. [25 ]
Deshpande, A. [7 ,54 ,59 ]
Desmond, E. J. [7 ]
Dion, A. [59 ]
Dixit, D. [59 ]
Do, J. H. [66 ]
Drees, A. [59 ]
Drees, K. A. [6 ]
Durham, J. M. [36 ]
Durum, A. [25 ]
Enokizono, A. [53 ,55 ]
En'yo, H. [53 ]
机构
[1] Abilene Christian Univ, Abilene, TX 79699 USA
[2] Augustana Univ, Dept Phys, Sioux Falls, SD 57197 USA
[3] Banaras Hindu Univ, Dept Phys, Varanasi 221005, Uttar Pradesh, India
[4] Bhabha Atom Res Ctr, Bombay 400085, Maharashtra, India
[5] CUNY, Baruch Coll, New York, NY 10010 USA
[6] Brookhaven Natl Lab, Collider Accelerator Dept, Upton, NY 11973 USA
[7] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA
[8] Univ Calif Riverside, Riverside, CA 92521 USA
[9] Charles Univ Prague, Ovocny Trh 5, Prague 11636 1, Czech Republic
[10] Chonbuk Natl Univ, Jeonju 561756, South Korea
[11] Univ Tokyo, Ctr Nucl Study, Grad Sch Sci, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan
[12] Univ Colorado, Boulder, CO 80309 USA
[13] Columbia Univ, New York, NY 10027 USA
[14] Nevis Labs, Irvington, NY 10533 USA
[15] Czech Tech Univ, Zikova 4, Prague 16636 6, Czech Republic
[16] Debrecen Univ, Egyet Ter 1, H-4010 Debrecen, Hungary
[17] Eotvos Lorand Univ, ELTE, Pazmany Ps 1-A, H-1117 Budapest, Hungary
[18] Eszterhazy Karloy Univ, Karoly Robert Campus,Matrai Ut 36, H-3200 Gyongyos, Hungary
[19] Ewha Womans Univ, Seoul 120750, South Korea
[20] Florida A&M Univ, Tallahassee, FL 32307 USA
[21] Florida State Univ, Tallahassee, FL 32306 USA
[22] Georgia State Univ, Atlanta, GA 30303 USA
[23] Hiroshima Univ, Higashihiroshima 7398526, Japan
[24] Howard Univ, Dept Phys & Astron, Washington, DC 20059 USA
[25] State Res Ctr Russian Federat, Inst High Energy Phys, IHEP Protvino, Protvino 142281, Russia
[26] Univ Illinois, Urbana, IL 61801 USA
[27] Russian Acad Sci, Inst Nucl Res, Prospekt 60 Letiya Oktyabrya 7a, Moscow 117312, Russia
[28] Acad Sci Czech Republ, Inst Phys, Slovance 2, Prague 18221 8, Czech Republic
[29] Iowa State Univ, Ames, IA 50011 USA
[30] Japan Atom Energy Agcy, Adv Sci Res Ctr, 2-4 Shirakata Shirane, Tokai, Ibaraki 3191195, Japan
[31] High Energy Accelerator Res Org, KEK, Tsukuba, Ibaraki 3050801, Japan
[32] Korea Univ, Seoul 02841, South Korea
[33] Natl Res Ctr, Kurchatov Inst, Moscow 123098, Russia
[34] Kyoto Univ, Kyoto 6068502, Japan
[35] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA
[36] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
[37] Lund Univ, Dept Phys, Box 118, SE-22100 Lund, Sweden
[38] Univ Lyon 1, Univ Lyon, CNRS IN2P3, IPNL, F-69622 Villeurbanne, France
[39] Univ Maryland, College Pk, MD 20742 USA
[40] Univ Massachusetts, Dept Phys, Amherst, MA 01003 USA
[41] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA
[42] Muhlenberg Coll, Allentown, PA 18104 USA
[43] Nara Womens Univ, Nishi, Nara 6308506, Japan
[44] Natl Res Nucl Univ, Moscow Engn Phys Inst, MEPhI, Moscow 115409, Russia
[45] Univ New Mexico, Albuquerque, NM 87131 USA
[46] New Mexico State Univ, Las Cruces, NM 88003 USA
[47] Univ North Carolina Greensboro, Phys & Astron Dept, Greensboro, NC 27412 USA
[48] Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA
[49] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA
[50] Univ Paris Saclay, Univ Paris Sud, IPN Orsay, CNRS IN2P3, BP 1, F-91406 Orsay, France
基金
以色列科学基金会; 日本学术振兴会; 美国国家科学基金会;
关键词
LARGE TRANSVERSE-MOMENTUM; ROOT-S(NN)=200 GEV; AU COLLISIONS;
D O I
10.1103/PhysRevD.99.092003
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Measurements of the differential production of electrons from open-heavy-flavor hadrons with charm-and bottom-quark content in p + p collisions at root s = 200 GeV are presented. The measurements proceed through displaced-vertex analyses of electron tracks from the semileptonic decay of charm and bottom hadrons using the PHENIX silicon-vertex detector. The relative contribution of electrons from bottom decays to inclusive heavy-flavor-electron production is found to be consistent with fixed-order-plus-next-to-leading-log perturbative-QCD calculations within experimental and theoretical uncertainties. These new measurements in p + p collisions provide a precision baseline for comparable forthcoming measurements in A + A collisions.
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页数:21
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