Cold-Nuclear-Matter Effects on Heavy-Quark Production at Forward and Backward Rapidity in d + Au Collisions at √sNN = GeV

被引：52

作者：

Adare, A. ^{[13
]}

Aidala, C. ^{[40
,44
,45
]}

Ajitanand, N. N. ^{[62
]}

Akiba, Y. ^{[57
,58
]}

Akimoto, R. ^{[12
]}

Al-Bataineh, H. ^{[51
]}

Al-Ta'ani, H. ^{[51
]}

Alexander, J. ^{[62
]}

Andrews, K. R. ^{[1
]}

Angerami, A. ^{[14
,15
]}

Aoki, K. ^{[36
,57
]}

Apadula, N. ^{[63
]}

Appelt, E. ^{[67
]}

Aramaki, Y. ^{[12
,57
]}

Armendariz, R. ^{[8
]}

Aschenauer, E. C. ^{[7
]}

Atomssa, E. T. ^{[37
]}

Averbeck, R. ^{[63
]}

Awes, T. C. ^{[53
]}

Azmoun, B. ^{[7
]}

Babintsev, V. ^{[25
]}

Bai, M. ^{[6
]}

Baksay, G. ^{[20
]}

Baksay, L. ^{[20
]}

Bannier, B. ^{[63
]}

Barish, K. N. ^{[8
]}

Bassalleck, B. ^{[50
]}

Basye, A. T. ^{[1
]}

Bathe, S. ^{[5
,8
,58
]}

Baublis, V. ^{[56
]}

Baumann, C. ^{[46
]}

Bazilevsky, A. ^{[7
]}

Belikov, S. ^{[7
]}

Belmont, R. ^{[67
]}

Ben-Benjamin, J. ^{[47
]}

Bennett, R. ^{[63
]}

Bhom, J. H. ^{[71
]}

Blau, D. S. ^{[35
]}

Bok, J. S. ^{[71
]}

Boyle, K. ^{[58
,63
]}

Brooks, M. L. ^{[40
]}

Broxmeyer, D. ^{[47
]}

Buesching, H. ^{[7
]}

Bumazhnov, V. ^{[25
]}

Bunce, G. ^{[7
,58
]}

Butsyk, S. ^{[40
]}

Campbell, S. ^{[63
]}

Caringi, A. ^{[47
]}

Castera, P. ^{[63
]}

Chen, C. -H. ^{[63
]}

机构：

[1] Abilene Christian Univ, Abilene, TX 79699 USA

[2] Augustana Coll, 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 Bernard M 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, CR-11636 Prague 1, Czech Republic

[10] Chonbuk Natl Univ, Jeonju 561756, South Korea

[11] China Inst Atom Energy, Sci & Technol Nucl Data Lab, Beijing 102413, Peoples R China

[12] Univ Tokyo, Grad Sch Sci, Ctr Nucl Study, Bunkyo Ku, Tokyo 1130033, Japan

[13] Univ Colorado, Boulder, CO 80309 USA

[14] Columbia Univ, New York, NY 10027 USA

[15] Nevis Labs, Irvington, NY 10533 USA

[16] Czech Tech Univ, Prague 16636 6, Czech Republic

[17] CEA Saclay, F-91191 Gif Sur Yvette, France

[18] Eotvos Lorand Univ, ELTE, H-1117 Budapest, Hungary

[19] Ewha Womans Univ, Seoul 120750, South Korea

[20] Florida Inst Technol, Melbourne, FL 32901 USA

[21] Florida State Univ, Tallahassee, FL 32306 USA

[22] Georgia State Univ, Atlanta, GA 30303 USA

[23] Hanyang Univ, Seoul 133792, South Korea

[24] Hiroshima Univ, Higashihiroshima 7398526, Japan

[25] Inst High Energy Phys, State Res Ctr Russian Federat, IHEP Protvino, Protvino 142281, Russia

[26] Univ Illinois, Urbana, IL 61801 USA

[27] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia

[28] Acad Sci Czech Republ, Inst Phys, Prague 18221 8, Czech Republic

[29] Iowa State Univ, Ames, IA 50011 USA

[30] Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan

[31] Helsinki Inst Phys, FI-40014 Jyvaskyla, Finland

[32] Univ Jyvaskyla, FI-40014 Jyvaskyla, Finland

[33] High Energy Accelerator Res Org, KEK, Tsukuba, Ibaraki 3050801, Japan

[34] Korea Univ, Seoul 136701, South Korea

[35] Kurchatov Inst, Russian Res Ctr, Moscow 123098, Russia

[36] Kyoto Univ, Kyoto 6068502, Japan

[37] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France

[38] Lahore Univ Management Sci, Dept Phys, Lahore 54792, Pakistan

[39] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[40] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[41] Univ Blaise Pascal, CNRS, IN2P3, LPC, F-63177 Aubiere, France

[42] Lund Univ, Dept Phys, SE-22100 Lund, Sweden

[43] Univ Maryland, College Pk, MD 20742 USA

[44] Univ Massachusetts, Dept Phys, Amherst, MA 01003 USA

[45] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA

[46] Univ Munster, Inst Kernphys, D-48149 Munster, Germany

[47] Muhlenberg Coll, Allentown, PA 18104 USA

[48] Myongji Univ, Yongin 449728, Kyonggido, South Korea

[49] Nagasaki Inst Appl Sci, Nagasaki 8510193, Japan

[50] Univ New Mexico, Albuquerque, NM 87131 USA

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 112卷 / 25期

基金：

日本学术振兴会; 新加坡国家研究基金会; 美国国家科学基金会; 以色列科学基金会;

关键词：

40;

D O I：

10.1103/PhysRevLett.112.252301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The PHENIX experiment has measured open heavy-flavor production via semileptonic decay over the transverse momentum range 1 < p(T) < 6 GeV/c at forward and backward rapidity (1.4 < vertical bar y vertical bar < 2.0) in d + Au and p + p collisions at root s(NN) = 200 GeV. In central d + Au collisions, relative to the yield in p + p collisions scaled by the number of binary nucleon-nucleon collisions, a suppression is observed at forward rapidity (in the d-going direction) and an enhancement at backward rapidity (in the Au-going direction). Predictions using nuclear-modified-parton-distribution functions, even with additional nuclear-p(T) broadening, cannot simultaneously reproduce the data at both rapidity ranges, which implies that these models are incomplete and suggests the possible importance of final-state interactions in the asymmetric d + Au collision system. These results can be used to probe cold-nuclear-matter effects, which may significantly affect heavy-quark production, in addition to helping constrain the magnitude of charmonia-breakup effects in nuclear matter.

引用

页数：8

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