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Nuclear modification factors for hadrons at forward and backward rapidities in deuteron-gold collisions at √SNN = 200 GeV

  • S. S. Adler
  • , S. Afanasiev
  • , C. Aidala
  • , N. N. Ajitanand
  • , Y. Akiba
  • , A. Al-Jamel
  • , J. Alexander
  • , K. Aoki
  • , L. Aphecetche
  • , R. Armendariz
  • , S. H. Aronson
  • , R. Averbeck
  • , T. C. Awes
  • , V. Babintsev
  • , A. Baldisseri
  • , K. N. Barish
  • , P. D. Barnes
  • , B. Bassalleck
  • , S. Bathe
  • , S. Batsouli
  • V. Baublis, F. Bauer, A. Bazilevsky, S. Belikov, M. T. Bjorndal, J. G. Boissevain, H. Borel, M. L. Brooks, D. S. Brown, N. Bruner, D. Bucher, H. Buesching, V. Bumazhnov, G. Bunce, J. M. Burward-Hoy, S. Butsyk, X. Camard, P. Chand, W. C. Chang, S. Chernichenko, C. Y. Chi, J. Chiba, M. Chiu, I. J. Choi, R. K. Choudhury, T. Chujo, V. Cianciolo, Y. Cobigo, B. A. Cole, M. P. Comets, P. Constantin, M. Csanád, T. Csörgo, J. P. Cussonneau, D. D'Enterria, K. Das, G. David, F. Deák, H. Delagrange, A. Denisov, A. Deshpande, E. J. Desmond, A. Devismes, O. Dietzsch, J. L. Drachenberg, O. Drapier, A. Drees, A. Durum, D. Dutta, V. Dzhordzhadze, Y. V. Efremenko, H. En'yo, B. Espagnon, S. Esumi, D. E. Fields, C. Finck, F. Fleuret, S. L. Fokin, B. D. Fox, Z. Fraenkel, J. E. Frantz, A. Franz, A. D. Frawley, Y. Fukao, S. Y. Fung, S. Gadrat, M. Germain, A. Glenn, M. Gonin, J. Gosset, Y. Goto, R. Granier De Cassagnac, N. Grau, S. V. Greene, M. Grosse Perdekamp, H. Å Gustafsson, T. Hachiya, J. S. Haggerty, H. Hamagaki
  • Brookhaven National Laboratory
  • Joint Institute for Nuclear Research, Dubna
  • Columbia University
  • Stony Brook University
  • High Energy Accelerator Research Organization (KEK)
  • Riken
  • New Mexico State University
  • Kyoto University
  • SUBATECH
  • Oak Ridge National Laboratory
  • Kurchatov Institute
  • Institut Pierre Simon Laplace, CNRS and CEA
  • University of California, Riverside
  • MST-8, Los Alamos National Laboratory
  • University of New Mexico
  • University of Münster
  • Petersburg Nuclear Physics Institute (PNPI)
  • Riken BNL Research Center
  • Iowa State University
  • Lawrence Livermore National Laboratory
  • Bhabha Atomic Research Centre
  • Academia Sinica, Institute Of Physics
  • Yonsei University
  • Université Paris-Saclay
  • Eötvös Loránd University
  • Wigner Research Centre for Physics
  • Florida State University
  • University of São Paulo
  • Abilene Christian University
  • University of Tennessee
  • University of Tsukuba
  • Kurchatov Institute
  • Weizmann Institute of Science Israel
  • Université Blaise Pascal
  • Vanderbilt University
  • University of Illinois at Urbana-Champaign
  • Lund University
  • Hiroshima University
  • University of Tokyo

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

87 Citations (Scopus)

Résumé

We report on charged hadron production in deuteron-gold reactions at √SNN = 200 GeV. Our measurements in the deuteron direction cover 1.4 < η < 2.2, referred to as forward rapidity, and in the gold direction -2.0 < η < -1.4, referred to as backward rapidity, and a transverse momentum range PT = 0.5-.0 GeV/c. We compare the relative yields for different deuteron-gold collision centrality classes. We observe a suppression relative to binary collision scaling at forward rapidity, sensitive to low momentum fraction (x) partons in the gold nucleus, and an enhancement at backward rapidity, sensitive to high momentum fraction partons in the gold nucleus.

langue originaleAnglais
Numéro d'article082302
Pages (de - à)1-6
Nombre de pages6
journalPhysical Review Letters
Volume94
Numéro de publication8
Les DOIs
étatPublié - 4 mars 2005

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