Evolution of the nuclear modification factors with rapidity and centrality in d+Au collisions at √NSN=200 GeV - art. no. 242303

被引：337

作者：

Arsene, I

Bearden, IG

Beavis, D

Besliu, C

Budick, B

Boggild, H

Chasman, C

Christensen, CH

Christiansen, P

Cibor, J

Debbe, R

Enger, E

Gaardhoje, JJ

Germinario, M

Hagel, K

Ito, H

Jipa, A

Jundt, F

Jordre, JI

Jorgensen, CE

Karabowicz, R

Kim, EJ

Kozik, T

Larsen, TM

Lee, JH

Lee, YK

Lindal, S

Lystad, R

Lovhoiden, G

Majka, Z

Makeev, A

Mikelsen, M

Murray, M

Natowitz, J

Neumann, B

Nielsen, BS

Ouerdane, D

Planeta, R

Rami, F

Ristea, C

Ristea, O

Röhrich, D

Samset, BH

Sandberg, D

Sanders, SJ

Scheetz, RA

Staszel, P

Tveter, TS

Videbæk, F

Wada, R

机构：

[1] Univ Bucharest, Bucharest, Romania

[2] Brookhaven Natl Lab, Upton, NY 11973 USA

[3] Inst Rech Subatom, Strasbourg, France

[4] Univ Strasbourg, Strasbourg, France

[5] Inst Nucl Phys, Krakow, Poland

[6] Jagiellonian Univ, Smoluchkowski Inst Phys, Krakow, Poland

[7] Johns Hopkins Univ, Baltimore, MD 21218 USA

[8] NYU, New York, NY 10003 USA

[9] Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark

[10] Texas A&M Univ, College Stn, TX USA

[11] Univ Bergen, Dept Phys, Bergen, Norway

[12] Univ Kansas, Lawrence, KS 66045 USA

[13] Univ Oslo, Dept Phys, Oslo, Norway

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.93.242303

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on a study of the transverse momentum dependence of nuclear modification factors R-dAu for charged hadrons produced in deuteron + gold collisions at roots(NN) = 200 GeV, as a function of collision centrality and of the pseudorapidity (eta=0, 1, 2.2, 3.2) of the produced hadrons. We find a significant and systematic decrease of R-dAu with increasing rapidity. The midrapidity enhancement and the forward rapidity suppression are more pronounced in central collisions relative to peripheral collisions. These results are relevant to the study of the possible onset of gluon saturation at energies reached at BNL RHIC.

引用

页数：4

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