The rapidity and centrality dependence of nuclear modification factors at RHIC - what does bulk particle production tell us about the nuclear medium ?

I. Arsene; G. Bearden; D. Beavis; C. Besliu; B. Budick; H. Boggild; C. Chasman; C.H. Christensen; P. Christiansen; J. Cibor; R. Debbe; E. Enger; J.J. Gaardhoje; M. Germinario; K. Hagel; H. Ito; A. Jipa; F. Jundt; J.I. Jordre; C.E. Jorgensen; R. Karabowicz; E.J. Kim; T.M. Larsen; J.H. Lee; Y.K. Lee; S. Lindal; G. Lovhoiden; Z. Majka; A. Makeev; B. Mcbreen; M. Mikelsen; M. Murray; J. Natowitz; B. Neumann; B.S. Nielsen; J. Norris; D. Ouerdane; R. Planeta; F. Rami; C. Ristea; O. Ristea; D. Rohrich; D. Sandberg; S.J. Sanders; R.A. Scheetz; P. Staszel; T.S. Tveter; F. Videbaek; R. Wada; Z. Yin; I.S. Zgura

Conference Papers Year : 2004

The rapidity and centrality dependence of nuclear modification factors at RHIC - what does bulk particle production tell us about the nuclear medium ?

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I. Arsene

Function : Author

G. Bearden

Function : Author

D. Beavis

Function : Author

C. Besliu

Function : Author

B. Budick

Function : Author

H. Boggild

Function : Author

C. Chasman

Function : Author

C.H. Christensen

Function : Author

P. Christiansen

Function : Author

J. Cibor

Function : Author

R. Debbe

Function : Author

E. Enger

Function : Author

J.J. Gaardhoje

Function : Author

M. Germinario

Function : Author

K. Hagel

Function : Author

H. Ito

Function : Author

A. Jipa

Function : Author

F. Jundt

Function : Author

Institut de Recherches Subatomiques

J.I. Jordre

Function : Author

C.E. Jorgensen

Function : Author

R. Karabowicz

Function : Author

E.J. Kim

Function : Author

T.M. Larsen

Function : Author

J.H. Lee

Function : Author

Y.K. Lee

Function : Author

S. Lindal

Function : Author

G. Lovhoiden

Function : Author

Z. Majka

Function : Author

A. Makeev

Function : Author

B. Mcbreen

Function : Author

M. Mikelsen

Function : Author

M. Murray

Function : Author

J. Natowitz

Function : Author

B. Neumann

Function : Author
PersonId : 752411
IdHAL : barbara-guerra-neumann

B.S. Nielsen

Function : Author

J. Norris

Function : Author

D. Ouerdane

Function : Author

R. Planeta

Function : Author

F. Rami

Function : Author

Institut de Recherches Subatomiques

C. Ristea

Function : Author

O. Ristea

Function : Author

D. Rohrich

Function : Author

D. Sandberg

Function : Author

S.J. Sanders

Function : Author

R.A. Scheetz

Function : Author

P. Staszel

Function : Author

T.S. Tveter

Function : Author

F. Videbaek

Function : Author

R. Wada

Function : Author

Z. Yin

Function : Author

I.S. Zgura

Function : Author

Abstract

The BRAHMS experiment at RHIC has measured the production of charged hadrons as a function of pseudorapidity and transverse momentum in Au+Au, d + Au, and p+p collisions at a common energy of sqrt(s_NN)= 200 GeV, and from these spectra we construct the nuclear modification factors for both "hot" and "cold" nuclear matter. In this contribution I will show how these factors evolve with pseudorapidity and collision centrality. We see a Cronin-like enhancement in d+Au collisions at midrapidity, going to a strong suppression at eta >=2. In central Au+Au collisions we find a suppression both at mid-and forward rapidities that vanishes for peripheral collisions. We interpret this as signs of several different medium ralted effects modifying bulk particle production in Au+Au and d+Au collisions at RHIC energies.

Domains

Physics [physics] Nuclear Experiment [nucl-ex]

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https://hal.in2p3.fr/in2p3-00023178

Submitted on : Wednesday, October 6, 2004-11:20:03 AM

Last modification on : Tuesday, February 7, 2023-2:44:38 PM

Dates and versions

in2p3-00023178 , version 1 (06-10-2004)

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HAL Id : in2p3-00023178 , version 1
ARXIV : nucl-ex/0403058

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I. Arsene, G. Bearden, D. Beavis, C. Besliu, B. Budick, et al.. The rapidity and centrality dependence of nuclear modification factors at RHIC - what does bulk particle production tell us about the nuclear medium ?. 42th International Winter Meeting on Nuclear Physics, Jan 2004, Bormio, Italy. ⟨in2p3-00023178⟩

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The rapidity and centrality dependence of nuclear modification factors at RHIC - what does bulk particle production tell us about the nuclear medium ?

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