학술논문
Pseudorapidity distributions of charged particles in d+Au and p+p collisions at
Document Type
Article
Author
Nouicer, Rachid; Collaboration), (for the PHOBOS; Back, B B; Baker, M D; Ballintijn, M; Barton, D S; Becker, B; Betts, R R; Bickley, A A; Bindel, R; Busza, W; Carroll, A; Decowski, M P; García, E; Gburek, T; George, N; Gulbrandsen, K; Gushue, S; Halliwell, C; Hamblen, J; Harrington, A S; Henderson, C; Hofman, D J; Hollis, R S; Hołyński, R; Holzman, B; Iordanova, A; Johnson, E; Kane, J L; Khan, N; Kulinich, P; Kuo, C M; Lee, J W; Lin, W T; Manly, S; Mignerey, A C; Olszewski, A; Pak, R; Park, I C; Pernegger, H; Reed, C
Source
Journal of Physics G: Nuclear and Particle Physics; August 1, 2004, Vol. 30 Issue: 8 pS1133-S1137, 5p
Subject
Language
ISSN
09543899; 13616471
Abstract
The measured pseudorapidity distributions of primary charged particles are presented for d+Au and p+p collisions at over a wide pseudorapidity range of |η| 5.4. The results for d+Au collisions are presented for minimum-bias events and as a function of collision centrality. The measurements for p+p collisions are shown for minimum-bias events. The ratio of the charged particle multiplicity in d+Au and p+A collisions relative to that for inelastic p+p collisions is found to depend only on 〈Npart〉, and it is remarkably independent of collision energy and system mass. The deuteron and gold fragmentation regions in d+Au collisions are in good agreement with proton nucleus data at lower energies.