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Title: Elliptic flow in Au+Au collisions at √(sNN) = 130 GeV.

Journal Article · · Physical Review Letters
 [1];  [2];  [3];  [4];  [4];  [5];  [5];  [5];  [5];  [5];  [5];  [5];  [5];  [5];  [6]
  1. Max-Planck-Institut fuer Physik, Munich (Germany)
  2. Rice Univ., Houston, TX (United States)
  3. Univ. of Frankfurt, Frankfurt (Germany)
  4. Purdue Univ., West Lafayette, IN (United States)
  5. Argonne National Lab. (ANL), Argonne, IL (United States)
  6. Brookhaven National Lab. (BNL), Upton, NY (United States)

Elliptic flow from nuclear collisions is a hadronic observable sensitive to the early stages of system evolution. We report first results on elliptic flow of charged particles at midrapidity in Au+Au collisions at √(sNN) = 130 GeV using the STAR Time Projection Chamber at the Relativistic Heavy Ion Collider. The elliptic flow signal, v₂, averaged over transverse momentum, reaches values of about 6% for relatively peripheral collisions and decreases for the more central collisions. This can be interpreted as the observation of a higher degree of thermalization than at lower collision energies. Pseudorapidity and transverse momentum dependence of elliptic flow are also presented.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Contributing Organization:
STAR Collaboration
DOE Contract Number:
AC02-06CH11357
OSTI ID:
943085
Report Number(s):
ANL-HEP-PR-00-105; PRLTAO; TRN: US1000549
Journal Information:
Physical Review Letters, Vol. 86, Issue 3 ; Jan. 15, 2001; ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
ENGLISH

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