Phys. Rev. Lett.
91,
072303
(2003)
[6 pages]
Absence of Suppression in Particle Production at Large Transverse Momentum in √sNN=200 GeV d+Au Collisions
S. S. Adler et al. PHENIX Collaboration
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S. S. Adler4, S. Afanasiev19, C. Aidala9, N. N. Ajitanand43, Y. Akiba20,39, A. Al-Jamel34, J. Alexander43, K. Aoki24, L. Aphecetche45, R. Armendariz34, S. H. Aronson4, R. Averbeck44, T. C. Awes35, V. Babintsev16, A. Baldisseri10, K. N. Barish5, P. D. Barnes27, B. Bassalleck33, S. Bathe5,30, S. Batsouli9, V. Baublis38, F. Bauer5, A. Bazilevsky4,40, S. Belikov18,16, M. T. Bjorndal9, J. G. Boissevain27, H. Borel10, M. L. Brooks27, D. S. Brown34, N. Bruner33, D. Bucher30, H. Buesching4,30, V. Bumazhnov16, G. Bunce4,40, J. M. Burward-Hoy27,26, S. Butsyk44, X. Camard45, P. Chand3, W. C. Chang2, S. Chernichenko16, C. Y. Chi9, J. Chiba20, M. Chiu9, I. J. Choi52, R. K. Choudhury3, T. Chujo4, V. Cianciolo35, Y. Cobigo10, B. A. Cole9, M. P. Comets36, P. Constantin18, M. Csanád12, T. Csörgő21, J. P. Cussonneau45, D. d’Enterria9, K. Das13, G. David4, F. Deák12, H. Delagrange45, A. Denisov16, A. Deshpande40, E. J. Desmond4, A. Devismes44, O. Dietzsch41, J. L. Drachenberg1, O. Drapier25, A. Drees44, A. Durum16, D. Dutta3, V. Dzhordzhadze46, Y. V. Efremenko35, H. En’yo39,40, B. Espagnon36, S. Esumi48, D. E. Fields33,40, C. Finck45, F. Fleuret25, S. L. Fokin23, B. D. Fox40, Z. Fraenkel51, J. E. Frantz9, A. Franz4, A. D. Frawley13, Y. Fukao24,39,40, S.-Y. Fung5, S. Gadrat28, M. Germain45, A. Glenn46, M. Gonin25, J. Gosset10, Y. Goto39,40, R. Granier de Cassagnac25, N. Grau18, S. V. Greene49, M. Grosse Perdekamp17,40, H.-Å. Gustafsson29, T. Hachiya15, J. S. Haggerty4, H. Hamagaki7, A. G. Hansen27, E. P. Hartouni26, M. Harvey4, K. Hasuko39, R. Hayano7, X. He14, M. Heffner26, T. K. Hemmick44, J. M. Heuser39, P. Hidas21, H. Hiejima17, J. C. Hill18, R. Hobbs33, W. Holzmann43, K. Homma15, B. Hong22, A. Hoover34, T. Horaguchi39,40,47, T. Ichihara39,40, V. V. Ikonnikov23, K. Imai24,39, M. Inuzuka7, D. Isenhower1, L. Isenhower1, M. Issah43, A. Isupov19, B. V. Jacak44, J. Jia44, O. Jinnouchi39,40, B. M. Johnson4, S. C. Johnson26, K. S. Joo31, D. Jouan36, F. Kajihara7, S. Kametani7,50, N. Kamihara39,47, M. Kaneta40, J. H. Kang52, K. Katou50, T. Kawabata7, A. Kazantsev23, S. Kelly8,9, B. Khachaturov51, A. Khanzadeev38, J. Kikuchi50, D. J. Kim52, E. Kim42, G.-B. Kim25, H. J. Kim52, E. Kinney8, A. Kiss12, E. Kistenev4, A. Kiyomichi39, C. Klein-Boesing30, H. Kobayashi40, V. Kochetkov16, R. Kohara15, B. Komkov38, M. Konno48, D. Kotchetkov5, A. Kozlov51, P. J. Kroon4, C. H. Kuberg1, G. J. Kunde27, K. Kurita39, M. J. Kweon22, Y. Kwon52, G. S. Kyle34, R. Lacey43, J. G. Lajoie18, Y. Le Bornec36, A. Lebedev18,23, S. Leckey44, D. M. Lee27, M. J. Leitch27, M. A. L. Leite41, X. Li6, X. H. Li5, H. Lim42, A. Litvinenko19, M. X. Liu27, C. F. Maguire49, Y. I. Makdisi4, A. Malakhov19, V. I. Manko23, Y. Mao37,39, G. Martinez45, H. Masui48, F. Matathias44, T. Matsumoto7,50, M. C. McCain1, P. L. McGaughey27, Y. Miake48, T. E. Miller49, A. Milov44, S. Mioduszewski4, G. C. Mishra14, J. T. Mitchell4, A. K. Mohanty3, D. P. Morrison4, J. M. Moss27, D. Mukhopadhyay51, M. Muniruzzaman5, S. Nagamiya20, J. L. Nagle8,9, T. Nakamura15, J. Newby46, A. S. Nyanin23, J. Nystrand29, E. O’Brien4, C. A. Ogilvie18, H. Ohnishi39, I. D. Ojha49, H. Okada24,39, K. Okada39,40, A. Oskarsson29, I. Otterlund29, K. Oyama7, K. Ozawa7, D. Pal51, A. P. T. Palounek27, V. Pantuev44, V. Papavassiliou34, J. Park42, W. J. Park22, S. F. Pate34, H. Pei18, V. Penev19, J.-C. Peng17, H. Pereira10, V. Peresedov19, A. Pierson33, C. Pinkenburg4, R. P. Pisani4, M. L. Purschke4, A. K. Purwar44, J. Qualls1, J. Rak18, I. Ravinovich51, K. F. Read35,46, M. Reuter44, K. Reygers30, V. Riabov38, Y. Riabov38, G. Roche28, A. Romana25, M. Rosati18, S. Rosendahl29, P. Rosnet28, V. L. Rykov39, S. S. Ryu52, N. Saito24,39,40, T. Sakaguchi7,50, S. Sakai48, V. Samsonov38, L. Sanfratello33, R. Santo30, H. D. Sato24,39, S. Sato4,48, S. Sawada20, Y. Schutz45, V. Semenov16, R. Seto5, T. K. Shea4, I. Shein16, T.-A. Shibata39,47, K. Shigaki15, M. Shimomura48, A. Sickles44, C. L. Silva41, D. Silvermyr27, K. S. Sim22, A. Soldatov16, R. A. Soltz26, W. E. Sondheim27, S. Sorensen46, I. V. Sourikova4, F. Staley10, P. W. Stankus35, E. Stenlund29, M. Stepanov34, A. Ster21, S. P. Stoll4, T. Sugitate15, J. P. Sullivan27, S. Takagi48, E. M. Takagui41, A. Taketani39,40, K. H. Tanaka20, Y. Tanaka32, K. Tanida39, M. J. Tannenbaum4, A. Taranenko43, P. Tarján11, T. L. Thomas33, M. Togawa24,39, J. Tojo39, H. Torii24,40, R. S. Towell1, V-N. Tram25, I. Tserruya51, Y. Tsuchimoto15, H. Tydesjö29, N. Tyurin16, T. J. Uam31, H. W. van Hecke27, J. Velkovska4, M. Velkovsky44, V. Veszprémi11, A. A. Vinogradov23, M. A. Volkov23, E. Vznuzdaev38, X. R. Wang14, Y. Watanabe39,40, S. N. White4, N. Willis36, F. K. Wohn18, C. L. Woody4, W. Xie5, A. Yanovich16, S. Yokkaichi39,40, G. R. Young35, I. E. Yushmanov23, W. A. Zajc9,*, C. Zhang9, S. Zhou6, J. Zimányi21, L. Zolin19, and X. Zong18 (PHENIX Collaboration)
1Abilene Christian University, Abilene, Texas 79699, USA
2Institute of Physics, Academia Sinica, Taipei 11529, Taiwan
3Bhabha Atomic Research Centre, Bombay 400 085, India
4Brookhaven National Laboratory, Upton, New York 11973-5000, USA
5University of California–Riverside, Riverside, California 92521, USA
6China Institute of Atomic Energy (CIAE), Beijing, People’s Republic of China
7Center for Nuclear Study, Graduate School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
8University of Colorado, Boulder, Colorado 80309, USA
9Columbia University, New York, New York 10027, USA, and Nevis Laboratories, Irvington, New York 10533, USA
10Dapnia, CEA Saclay, F-91191, Gif-sur-Yvette, France
11Debrecen University, H-4010 Debrecen, Egyetem tér 1, Hungary
12ELTE, Eötvös Loránd University, H-1117 Budapest, Pázmány P. s. 1/A, Hungary
13Florida State University, Tallahassee, Florida 32306, USA
14Georgia State University, Atlanta, Georgia 30303, USA
15Hiroshima University, Kagamiyama, Higashi-Hiroshima 739-8526, Japan
16Institute for High Energy Physics (IHEP), Protvino, Russia
17University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
18Iowa State University, Ames, Iowa 50011, USA
19Joint Institute for Nuclear Research, 141980 Dubna, Moscow Region, Russia
20KEK, High Energy Accelerator Research Organization, Tsukuba-shi, Ibaraki-ken 305-0801, Japan
21KFKI Research Institute for Particle and Nuclear Physics (RMKI), H-1525 Budapest 114, P.O. Box 49, Hungary
22Korea University, Seoul, 136-701, Korea
23Russian Research Center, “Kurchatov Institute,” Moscow, Russia
24Kyoto University, Kyoto 606, Japan
25Laboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS-IN2P3, Route de Saclay, F-91128, Palaiseau, France
26Lawrence Livermore National Laboratory, Livermore, California 94550, USA
27Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
28LPC, Université Blaise Pascal, CNRS-IN2P3, Clermont-Fd, 63177 Aubiere Cedex, France
29Department of Physics, Lund University, Box 118, SE-221 00 Lund, Sweden
30Institut fuer Kernphysik, University of Muenster, D-48149 Muenster, Germany
31Myongji University, Yongin, Kyonggido 449-728, Korea
32Nagasaki Institute of Applied Science, Nagasaki-shi, Nagasaki 851-0193, Japan
33University of New Mexico, Albuquerque, New Mexico, USA
34New Mexico State University, Las Cruces, New Mexico 88003, USA
35Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
36IPN-Orsay, Universite Paris Sud, CNRS-IN2P3, BP1, F-91406, Orsay, France
37Peking University, Beijing, People’s Republic of China
38PNPI, Petersburg Nuclear Physics Institute, Gatchina, Russia
39RIKEN (The Institute of Physical and Chemical Research), Wako, Saitama 351-0198, Japan
40RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
41Universidade de São Paulo, Instituto de Física, Caixa Postal 66318, São Paulo CEP05315-970, Brazil
42System Electronics Laboratory, Seoul National University, Seoul, South Korea
43Chemistry Department, Stony Brook University, SUNY, Stony Brook, New York 11794-3400, USA
44Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794, USA
45SUBATECH (Ecole des Mines de Nantes, CNRS-IN2P3, Université de Nantes) BP 20722-44307, Nantes, France
46University of Tennessee, Knoxville, Tennessee 37996, USA
47Department of Physics, Tokyo Institute of Technology, Tokyo, 152-8551, Japan
48Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305, Japan
49Vanderbilt University, Nashville, Tennessee 37235, USA
50Waseda University, Advanced Research Institute for Science and Engineering, 17 Kikui-cho, Shinjuku-ku, Tokyo 162-0044, Japan
51Weizmann Institute, Rehovot 76100, Israel
52Yonsei University, IPAP, Seoul 120-749, Korea
Received 18 June 2003; published 15 August 2003
Transverse momentum spectra of charged hadrons with pT<8 GeV/c and neutral pions with pT<10 GeV/c have been measured at midrapidity by the PHENIX experiment at BNL RHIC in d+Au collisions at √sNN=200 GeV. The measured yields are compared to those in p+p collisions at the same √sNN scaled up by the number of underlying nucleon-nucleon collisions in d+Au. The yield ratio does not show the suppression observed in central Au+Au collisions at RHIC. Instead, there is a small enhancement in the yield of high momentum particles.
© 2003 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.91.072303
DOI:
10.1103/PhysRevLett.91.072303
*PHENIX spokesperson. Email address: zajc@nevis.columbia.edu
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