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Measurement of inclusive antiprotons from Au+Au collisions at √(sNN) = 130 GeV.

Journal Article · · Physical Review Letters
 [1];  [2];  [3];  [4];  [4];  [5];  [5];  [5];  [5];  [5];  [5]
  1. Univ. of Frankfurt, Frankfurt (Germany)
  2. Purdue Univ., West Lafayette, IN (United States)
  3. Indiana Univ., Bloomington, IN (United States)
  4. Kent State Univ., Kent, OH (United States)
  5. Argonne National Lab. (ANL), Argonne, IL (United States)
We report the first measurement of inclusive antiproton production at midrapidity in Au+Au collisions at √(sNN) = 130 GeV by the STAR experiment at RHIC. The antiproton transverse mass distributions in the measured transverse momentum range of 0.25⊥<0.95 GeV/c are found to fall less steeply for more central collisions. The extrapolated antiproton rapidity density is found to scale approximately with the negative hadron multiplicity density.
Research Organization:
Argonne National Laboratory (ANL)
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
AC02-06CH11357
OSTI ID:
949465
Report Number(s):
ANL-HEP-PR--01-108
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 26 ; Dec. 24, 2001 Vol. 87; ISSN 0031-9007; ISSN PRLTAO
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
ENGLISH

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