TY - JOUR
T1 - Nuclear modification factors for hadrons at forward and backward rapidities in deuteron gold collisions at root s(NN) = 200 GeV.
AU - Adler, S.S.
AU - Gustafsson, Hans-Åke
AU - Nystrand, Joakim
AU - Oskarsson, Anders
AU - Otterlund, Ingvar
AU - Rosendahl, Sarah
AU - Stenlund, Evert
AU - Tydesjö, Henrik
PY - 2005
Y1 - 2005
N2 - We report on charged hadron production in deuteron-gold reactions at roots(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.
AB - We report on charged hadron production in deuteron-gold reactions at roots(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.
U2 - 10.1103/PhysRevLett.94.082302
DO - 10.1103/PhysRevLett.94.082302
M3 - Article
C2 - 15783879
SN - 1079-7114
VL - 94
JO - Physical Review Letters
JF - Physical Review Letters
IS - 8
M1 - 082302
ER -