Antiproton production and antideuteron production limits in relativistic heavy ion collisions

Authors
Armstrong, TA Barish, KN Batsoulli, 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 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., Antiproton production and antideuteron production limits in relativistic heavy ion collisions, PHYS REV C, 59(5), 1999, pp. 2699-2712
Citations number
38
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW C-NUCLEAR PHYSICS
ISSN journal
05562813 → ACNP
Volume
59
Issue
5
Year of publication
1999
Pages
2699 - 2712
Database
ISI
SICI code
0556-2813(199905)59:5<2699:APAAPL>2.0.ZU;2-A
Abstract
We present results from Experiment 864 for antiproton production and antide uteron limits in Au + Pb collisions at 11.5 GeV/e per nucleon. We have meas ured invariant multiplicities for antiprotons for rapidities 1.4<y <2.4 at low transverse momentum as a function of collision geometry. When compared with the results from Experiment 878 our measurements suggest a significant contribution to the measured antiproton yield from the decay of strange an tibaryons. We have also searched fdr antideuterons and see no statistically significant signal. Thus, we set upper limits on the production at approxi mately 3 x 10(-7) per 10% highest multiplicity Au + Pb interaction. [S0556- 2813(99)03305-1].