Centrality dependence of charged hadron production in deuteron+gold and nucleon+gold collisions at {radical}(s{sub NN})=200 GeV

Journal Article · Tue Jan 15 04:00:00 EST 2008 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.77.014905· OSTI ID:21068066

Adler, S S; Aronson, S H; Chujo, T; David, G; Desmond, E J; Franz, A; Haggerty, J S; Harvey, M; Johnson, B M; Kistenev, E; Kroon, P J; Makdisi, Y I; Mioduszewski, S; Mitchell, J T; Morrison, D P; O'Brien, E; Pinkenburg, C; Pisani, R P; Purschke, M L; Shea, T K ^[1]

---

1. Brookhaven National Laboratory, Upton, New York 11973-5000 (United States)

We present transverse momentum (p{sub T}) spectra of charged hadrons measured in deuteron-gold and nucleon-gold collisions at {radical}(s{sub NN})=200 GeV for four centrality classes. Nucleon-gold collisions were selected by tagging events in which a spectator nucleon was observed in one of two forward rapidity detectors. The spectra and yields were investigated as a function of the number of binary nucleon-nucleon collisions, {nu}, suffered by deuteron nucleons. A comparison of charged particle yields to those in p+p collisions show that yield per nucleon-nucleon collision saturates with {nu} for high momentum particles. We also present the charged hadron to neutral pion ratios as a function of p{sub T}.

• OSTI ID: 21068066
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 1 Vol. 77; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHARGED PARTICLES
COMPARATIVE EVALUATIONS
DEUTERON REACTIONS
GEV RANGE
GOLD 197 TARGET
NUCLEAR REACTION YIELD
NUCLEON REACTIONS
PARTICLE PRODUCTION
PARTICLE RAPIDITY
PIONS NEUTRAL
PROTON-PROTON INTERACTIONS
TRANSVERSE MOMENTUM