Measurements of neutrons in 11.5A GeV/c Au plus Pb heavy-ion collisions - art. no. 064903

Authors
Armstrong, TA Barish, KN Batsouli, S Bennett, SJ Chikanian, A Coe, SD Cormier, TM Davies, R Dover, CB Fachini, P Fadem, B Finch, LE George, NK Greene, SV Haridas, P Hill, JC Hirsch, AS Hoversten, R Huang, HZ Kumar, BS Lainis, T Lajoie, JG Lewis, RA Li, Q Libby, B Majka, RD Miller, TE Munhoz, MG Nagle, JL Pless, IA Pope, JK Porile, NT Pruneau, CA Rabin, MSZ Reid, JD Rimai, A Rose, A Rotondo, FS Sandweiss, J Scharenberg, RP Slaughter, AJ Smith, GA Tincknell, ML Toothacker, WS Van Buren, G Wohn, FK Xu, Z
Citation
Ta. Armstrong et al., Measurements of neutrons in 11.5A GeV/c Au plus Pb heavy-ion collisions - art. no. 064903, PHYS REV C, 6006(6), 1999, pp. 4903
Citations number
23
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW C-NUCLEAR PHYSICS
ISSN journal
05562813 → ACNP
Volume
6006
Issue
6
Year of publication
1999
Database
ISI
SICI code
0556-2813(199912)6006:6<4903:MONI1G>2.0.ZU;2-W
Abstract
We present measurements from Brookhaven AGS Experiment 864 of neutron invar iant multiplicity in 11.5A GeV/c Au+Pb collisions. The measurements span a rapidity range from center of mass to beam rapidity (y(beam) = 3.2) and are presented as a function of event centrality. The results are compared with E864 measurements of proton invariant multiplicity and an average n/p rati o at hadronic freeze-out of 1.19 +/- .08 is determined for the rapidity ran ge y = 1.6 to y = 2.4. We discuss briefly the implications of this ratio wi thin a simple equilibrium model of the collision system. [S0556-2813(99)021 12-3].