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 < |y| < 2.0) in d+Au and p + p collisions at √sNN = 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.

Abilene Christian University Abilene Texas 79699 USA

Advanced Science Research Center Japan Atomic Energy Agency 2 4 Shirakata Shirane Tokai mura Naka gun Ibaraki ken 319 1195 Japan and Kyoto University Kyoto 606 8502 Japan and RIKEN Nishina Center for Accelerator Based Science Wako Saitama 351 0198 Japan

Baruch College City University of New York New York New York 10010 USA and University of California Riverside Riverside California 92521 USA and RIKEN BNL Research Center Brookhaven National Laboratory Upton New York 11973 5000 USA

Bhabha Atomic Research Centre Bombay 400 085 India

Center for Nuclear Study Graduate School of Science University of Tokyo 7 3 1 Hongo Bunkyo Tokyo 113 0033 Japan

Center for Nuclear Study Graduate School of Science University of Tokyo 7 3 1 Hongo Bunkyo Tokyo 113 0033 Japan and RIKEN Nishina Center for Accelerator Based Science Wako Saitama 351 0198 Japan

Center for Nuclear Study Graduate School of Science University of Tokyo 7 3 1 Hongo Bunkyo Tokyo 113 0033 Japan and Waseda University Advanced Research Institute for Science and Engineering 17 Kikui cho Shinjuku ku Tokyo 162 0044 Japan

Charles University Ovocný trh 5 Praha 1 116 36 Prague Czech Republic

Chemistry Department Stony Brook University SUNY Stony Brook New York 11794 3400 USA

Chonbuk National University Jeonju 561 756 Korea

Collider Accelerator Department Brookhaven National Laboratory Upton New York 11973 5000 USA

Columbia University New York New York 10027 and Nevis Laboratories Irvington New York 10533 USA

Columbia University New York New York 10027 and Nevis Laboratories Irvington New York 10533 USA and University of Illinois at Urbana Champaign Urbana Illinois 61801 USA

Czech Technical University Zikova 4 166 36 Prague 6 Czech Republic

Dapnia CEA Saclay F 91191 Gif sur Yvette France

Department of Physics and Astronomy Ohio University Athens Ohio 45701 USA and Department of Physics and Astronomy Stony Brook University SUNY Stony Brook New York 11794 3400 USA

Department of Physics and Astronomy Stony Brook University SUNY Stony Brook New York 11794 3400 USA

Department of Physics Augustana College Sioux Falls South Dakota 57197 USA and Columbia University New York New York 10027 and Nevis Laboratories Irvington New York 10533 USA

Department of Physics Banaras Hindu University Varanasi 221005 India

Department of Physics Lund University Box 118 SE 221 00 Lund Sweden

Department of Physics University of Massachusetts Amherst Massachusetts 01003 9337 USA

Department of Physics University of Massachusetts Amherst Massachusetts 01003 9337 USA and RIKEN BNL Research Center Brookhaven National Laboratory Upton New York 11973 5000 USA

ELTE Eötvös Loránd University H 1117 Budapest Pázmány P s 1 A Hungary

Ewha Womans University Seoul 120 750 Korea

Florida Institute of Technology Melbourne Florida 32901 USA

Florida State University Tallahassee Florida 32306 USA

Georgia State University Atlanta Georgia 30303 USA

Hanyang University Seoul 133 792 Korea

Helsinki Institute of Physics and University of Jyväskylä P O Box 35 FI 40014 Jyväskylä Finland

Hiroshima University Kagamiyama Higashi Hiroshima 739 8526 Japan

Hiroshima University Kagamiyama Higashi Hiroshima 739 8526 Japan and Institute of Physics University of Tsukuba Tsukuba Ibaraki 305 Japan

Hiroshima University Kagamiyama Higashi Hiroshima 739 8526 Japan and RIKEN Nishina Center for Accelerator Based Science Wako Saitama 351 0198 Japan

IHEP Protvino State Research Center of Russian Federation Institute for High Energy Physics Protvino 142281 Russia

Institut fur Kernphysik University of Muenster D 48149 Muenster Germany

Institut fur Kernphysik University of Muenster D 48149 Muenster Germany and Department of Physics and Astronomy Stony Brook University SUNY Stony Brook New York 11794 3400 USA

Institute for Nuclear Research of the Russian Academy of Sciences prospekt 60 letiya Oktyabrya 7a Moscow 117312 Russia and Department of Physics and Astronomy Stony Brook University SUNY Stony Brook New York 11794 3400 USA

Institute for Particle and Nuclear Physics Wigner Research Centre for Physics Hungarian Academy of Sciences H 1525 Budapest 114 P O Box 49 Budapest Hungary

Institute of Physics Academy of Sciences of the Czech Republic Na Slovance 2 182 21 Prague 8 Czech Republic

Institute of Physics University of Tsukuba Tsukuba Ibaraki 305 Japan

Iowa State University Ames Iowa 50011 USA

Iowa State University Ames Iowa 50011 USA and Department of Physics and Astronomy Stony Brook University SUNY Stony Brook New York 11794 3400 USA

IPN Orsay Universite Paris Sud CNRS IN2P3 BP1 F 91406 Orsay France

KEK High Energy Accelerator Research Organization Tsukuba Ibaraki 305 0801 Japan

Korea University Seoul 136 701 Korea

Kyoto University Kyoto 606 8502 Japan

Kyoto University Kyoto 606 8502 Japan and RIKEN Nishina Center for Accelerator Based Science Wako Saitama 351 0198 Japan

Kyoto University Kyoto 606 8502 Japan and RIKEN Nishina Center for Accelerator Based Science Wako Saitama 351 0198 Japan and RIKEN BNL Research Center Brookhaven National Laboratory Upton New York 11973 5000 USA and Seoul National University Seoul Korea

Laboratoire Leprince Ringuet Ecole Polytechnique CNRS IN2P3 Route de Saclay F 91128 Palaiseau France

Lawrence Livermore National Laboratory Livermore California 94550 USA

Los Alamos National Laboratory Los Alamos New Mexico 87545 USA

Los Alamos National Laboratory Los Alamos New Mexico 87545 USA and Department of Physics and Astronomy Stony Brook University SUNY Stony Brook New York 11794 3400 USA

Los Alamos National Laboratory Los Alamos New Mexico 87545 USA and Department of Physics University of Massachusetts Amherst Massachusetts 01003 9337 USA and Department of Physics University of Michigan Ann Arbor Michigan 48109 1040 USA

Los Alamos National Laboratory Los Alamos New Mexico 87545 USA and Peking University Beijing 100871 People's Republic of China

LPC Université Blaise Pascal CNRS IN2P3 Clermont Fd 63177 Aubiere Cedex France

Muhlenberg College Allentown Pennsylvania 18104 5586 USA

Myongji University Yongin Kyonggido 449 728 Korea

Nagasaki Institute of Applied Science Nagasaki shi Nagasaki 851 0193 Japan

New Mexico State University Las Cruces New Mexico 88003 USA

Oak Ridge National Laboratory Oak Ridge Tennessee 37831 USA

Oak Ridge National Laboratory Oak Ridge Tennessee 37831 USA and University of Tennessee Knoxville Tennessee 37996 USA

Peking University Beijing 100871 People's Republic of China

Peking University Beijing 100871 People's Republic of China and RIKEN Nishina Center for Accelerator Based Science Wako Saitama 351 0198 Japan

Physics Department Brookhaven National Laboratory Upton New York 11973 5000 USA

Physics Department Brookhaven National Laboratory Upton New York 11973 5000 USA and Chemistry Department Stony Brook University SUNY Stony Brook New York 11794 3400 USA

Physics Department Brookhaven National Laboratory Upton New York 11973 5000 USA and RIKEN BNL Research Center Brookhaven National Laboratory Upton New York 11973 5000 USA

Physics Department Brookhaven National Laboratory Upton New York 11973 5000 USA and Weizmann Institute Rehovot 76100 Israel

Physics Department Lahore University of Management Sciences Lahore 54792 Pakistan and University of New Mexico Albuquerque New Mexico 87131 USA

PNPI Petersburg Nuclear Physics Institute Gatchina Leningrad Region 188300 Russia

RIKEN BNL Research Center Brookhaven National Laboratory Upton New York 11973 5000 USA

RIKEN BNL Research Center Brookhaven National Laboratory Upton New York 11973 5000 USA and Department of Physics and Astronomy Stony Brook University SUNY Stony Brook New York 11794 3400 USA

RIKEN Nishina Center for Accelerator Based Science Wako Saitama 351 0198 Japan

RIKEN Nishina Center for Accelerator Based Science Wako Saitama 351 0198 Japan and Department of Physics Tokyo Institute of Technology Oh okayama Meguro Tokyo 152 8551 Japan

RIKEN Nishina Center for Accelerator Based Science Wako Saitama 351 0198 Japan and Institute of Physics University of Tsukuba Tsukuba Ibaraki 305 Japan

RIKEN Nishina Center for Accelerator Based Science Wako Saitama 351 0198 Japan and Physics Department Rikkyo University 3 34 1 Nishi Ikebukuro Toshima Tokyo 171 8501 Japan

RIKEN Nishina Center for Accelerator Based Science Wako Saitama 351 0198 Japan and RIKEN BNL Research Center Brookhaven National Laboratory Upton New York 11973 5000 USA

Russian Research Center Kurchatov Institute Moscow 123098 Russia

Science and Technology on Nuclear Data Laboratory China Institute of Atomic Energy Beijing 102413 People's Republic of China

Universidade de São Paulo Instituto de Física Caixa Postal 66318 São Paulo CEP05315 970 Brazil

University of California Riverside Riverside California 92521 USA

University of Colorado Boulder Colorado 80309 USA

University of Colorado Boulder Colorado 80309 USA and Department of Physics and Astronomy Stony Brook University SUNY Stony Brook New York 11794 3400 USA

University of Colorado Boulder Colorado 80309 USA and Florida State University Tallahassee Florida 32306 USA

University of Illinois at Urbana Champaign Urbana Illinois 61801 USA

University of Illinois at Urbana Champaign Urbana Illinois 61801 USA and RIKEN BNL Research Center Brookhaven National Laboratory Upton New York 11973 5000 USA

University of Illinois at Urbana Champaign Urbana Illinois 61801 USA and Yonsei University IPAP Seoul 120 749 Korea

University of Maryland College Park Maryland 20742 USA

University of New Mexico Albuquerque New Mexico 87131 USA

University of Tennessee Knoxville Tennessee 37996 USA

Vanderbilt University Nashville Tennessee 37235 USA

Waseda University Advanced Research Institute for Science and Engineering 17 Kikui cho Shinjuku ku Tokyo 162 0044 Japan

Weizmann Institute Rehovot 76100 Israel

Yonsei University IPAP Seoul 120 749 Korea

Citace poskytuje Crossref.org

Heavy-flavour and quarkonium production in the LHC era: from proton-proton to heavy-ion collisions