Antiproton Production in 11.5A GeV/c Au+Pb Nucleus-Nucleus Collisions

Journal Article · Sat Nov 01 04:00:00 EST 1997 · Physical Review Letters

OSTI ID:544975

De Cataldo, G; Giglietto, N; Raino, A; Spinelli, P ^[1]; Dover, C B ^[2]; Huang, H Z ^[3]; Hill, J C; Libby, B; Wohn, F K ^[4]; Rabin, M S ^[5]; Haridas, P; Pless, I A; Van Buren, G ^[6]; Armstrong, T A; Lewis, R A; Reid, J D; Smith, G A; Toothacker, W S ^[7]; Davies, R; Hirsch, A S ; Porile, N T; Rimai, A; Scharenberg, R P; Srivastava, B K; Tincknell, M L ^[8]; Greene, S V ^[9]; Bennett, S J; Cormier, T M; Dee, P; Fachini, P; Kim, B; Li, Q; Li, Y; Munhoz, M G; Pruneau, C A; Wilson, W K; Zhao, K ^[10]; Barish, K N; Bennett, M J; Chikanian, A; Coe, S D; Diebold, G E; Finch, L E; George, N K; Kumar, B S; Lajoie, J G; Majka, R D; Nagle, J L; Pope, J K; Rotondo, F S; Sandweiss, J; Slaughter, A J; Wolin, E J ^[11]

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1. University of Bari/INFN, Bari (Italy)
2. Brookhaven National Laboratory, Upton, New York 11973 (United States)
3. University of California at Los Angeles, Los Angeles, California 90024 (United States)
4. Iowa State University, Ames, Iowa 50011 (United States)
5. University of Massachusetts, Amherst, Massachusetts 01003 (United States)
6. Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)
7. Pennsylvania State University, University Park, Pennsylvania 16802 (United States)
8. Purdue University, West Lafayette, Indiana 47907 (United States)
9. Vanderbilt University, Nashville, Tennessee 37235 (United States)
10. Wayne State University, Detroit, Michigan 48201 (United States)
11. Yale University, New Haven, Connecticut 06520 (United States)

We present the first results from the E864 Collaboration on the production of antiprotons in 10{percent} central 11.5A GeV /c Au+Pb nucleus collisions at the Brookhaven Alternating Gradient Synchrotron. We report invariant multiplicities for antiproton production in the kinematic region 1.4{lt}y{lt}2.2 and 50{lt} p{sub T}{lt} 300 MeV/c , and compare our data with a first collision scaling model and previously published results from the E878 Collaboration. The differences between the E864 and E878 antiproton measurements and the implications for antihyperon production are discussed. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 544975
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 18 Vol. 79; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANTIPROTONS
GOLD
HEAVY ION REACTIONS
HYPERONS
LEAD
MULTIPLICITY
PARTICLE PRODUCTION
SCALING
TEV RANGE 01-10