Centrality and collision system dependence of antiproton production from p+A to Au+Au collisions at AGS energies
- Univ. of Tsukuba, Ibaraki (Japan)
- Massachusetts Inst. of Tech., Cambridge, MA (United States)
- KEK, Tanashi, Tokyo (Japan); and others
Antiproton production in heavy ion collisions reflects subtle interplay between initial production and absorption by nucleons. Because the AGS energies (10--20 A{center_dot}GeV/c) are close to the antiproton production threshold, antiproton may be sensitive to cooperative processes such as QGP and hadronic multi-step processes. On the other hand, antiproton has been proposed as a probe of baryon density due to large N{anti N} annihilation cross sections. Cascade models predict the maximum baryon density reaches about 10 times the normal nucleus density in central Au+Au collisions, where the strong antiproton absorption is expected. In this paper, the authors show systematic studies of antiproton production from p+A to Au+Au collisions.
- Research Organization:
- Columbia Univ., New York, NY (United States); Brookhaven National Lab. (BNL), Upton, NY (United States); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Univ. of California, Riverside, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research, Washington, DC (United States); National Aeronautics and Space Administration, Washington, DC (United States); Korea Science and Engineering Foundation (Korea, Republic of); Ministry of Education, Science and Culture (Japan)
- DOE Contract Number:
- FG02-86ER40281; AC02-98CH10886; AC02-76ER03069; FG03-86ER40271; W-7405-ENG-48
- OSTI ID:
- 645598
- Report Number(s):
- BNL-65375; CONF-971231-; ON: DE98004992; BR: KB0201000; CNN: Contract NASA NGR-05-003-513; Contract KOSEF 951-0202-032-2; TRN: 98:010234
- Resource Relation:
- Conference: Quark matter `97, Tsukuba (Japan), 1-5 Dec 1997; Other Information: PBD: Dec 1997
- Country of Publication:
- United States
- Language:
- English
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