Nuclear Modification Factors for Hadrons At Forward and Backward Rapidities in Deuteron-Gold Collisions at $\sqrt S_{NN}$ = 200 GeV - Archive ouverte HAL Access content directly
Journal Articles Physical Review Letters Year : 2005

Nuclear Modification Factors for Hadrons At Forward and Backward Rapidities in Deuteron-Gold Collisions at $\sqrt S_{NN}$ = 200 GeV

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S.S. Adler
  • Function : Author
S. Afanasiev
  • Function : Author
C. Aidala
  • Function : Author
N.N. Ajitanand
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Y. Akiba
  • Function : Author
J. Alexander
  • Function : Author
Laurent Aphecetche
S.H. Aronson
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R. Averbeck
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T.C. Awes
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V. Babintsev
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K.N. Barish
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B. Bassalleck
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V. Baublis
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F. Bauer
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A. Bazilevsky
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S. Belikov
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M.T. Bjorndal
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J.G. Boissevain
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H. Borel
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M.L. Brooks
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D.S. Brown
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N. Bruner
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D. Bucher
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H. Buesching
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V. Bumazhnov
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G. Bunce
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J.M. Burward-Hoy
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S. Butsyk
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X. Camard
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P. Chand
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W.C. Chang
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S. Chernichenko
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C.Y. Chi
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J. Chiba
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M. Chiu
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I.J. Choi
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J. Choi
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R.K. Choudhury
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T. Chujo
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V. Cianciolo
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Y. Cobigo
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B.A. Cole
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P. Constantin
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M. Csanad
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T. Csörgö
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D. d'Enterria
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K. Das
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G. David
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A. Denisov
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A. Deshpande
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E.J. Desmond
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O. Dietzsch
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J.L. Drachenberg
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A. Drees
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A. Durum
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D. Dutta
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V. Dzhordzhadze
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Y.V. Efremenko
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H. En'Yo
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D.E. Fields
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C. Finck
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J.E. Frantz
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A. Franz
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A.D. Frawley
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Y. Fukao
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S.Y. Fung
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Marie Germain
A. Glenn
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J. Gosset
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Y. Goto
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R. Granier de Cassagnac
N. Grau
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M. Grosse Perdekamp
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H.A. Gustafsson
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A. Khanzadeev
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E. Kinney
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A. Kiss
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P.J. Kroon
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C.H. Kuberg
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K. Kurita
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M.J. Kweon
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R. Lacey
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A. A. Lebedev
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S. Leckey
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D.M. Lee
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Y.I. Makdisi
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A. Malakhov
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Gines Martinez Garcia
H. Masui
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T. Matsumoto
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M.C. Mccain
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P.L. Mcgaughey
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A.K. Mohanty
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J. Newby
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A.S. Nyanin
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J. Nystrand
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E. O'Brien
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C.A. Ogilvie
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I.D. Ojha
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K. Okada
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A. Oskarsson
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I. Otterlund
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K. Oyama
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K. Ozawa
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A.P.T. Palounek
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V.S. Pantuev
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V. Papavassiliou
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J. Park
S.F. Pate
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H. Pei
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J.C. Peng
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H. Pereira
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K.F. Read
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K. Reygers
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V. Riabov
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Y. Riabov
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S.S.E. Rosendahl
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R. Seto
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S.P. Stoll
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V.-N. Tram
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A.A. Vinogradov
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J. Zimanyi
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H.W. Vanhecke
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Abstract

We report on charged hadron production in deuteron-gold reactions at $\sqrt S_{NN}$ = 200 GeV. Our measurements in the deuteron-direction cover 1.4 < $\eta$ <$ 2.2, referred to as forward rapidity, and in the gold-direction -2.0$ <$\eta$ <$ -1.4, referred to as backward rapidity, and a transverse momentum range p$_T$ = 0.5-4.0 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.

Dates and versions

in2p3-00023513 , version 1 (04-01-2005)

Identifiers

Cite

S.S. Adler, S. Afanasiev, C. Aidala, N.N. Ajitanand, Y. Akiba, et al.. Nuclear Modification Factors for Hadrons At Forward and Backward Rapidities in Deuteron-Gold Collisions at $\sqrt S_{NN}$ = 200 GeV. Physical Review Letters, 2005, 94, pp.082302-6. ⟨10.1103/PhysRevLett.94.082302⟩. ⟨in2p3-00023513⟩
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