Abstract
Au+Au collisions have been studied at center-of-mass energies of √sN N = 56 and 130 GeV using the PHOBOS detector at RHIC. Charged particle multiplicities have been measured as a function of center-of-mass energy, centrality and pseudo-rapidity, η. A total of 4100 ± 400 charged particles are observed in the pseudo-rapidity range -5.4 < η < 5.4 for the most central collisions. A strong elliptic flow signal is seen in peripheral collisions at η = 0. The measurement of an antiprotons to protons ratio of p̄/p = 0.60 ± 0.04(stat) ± 0.06(syst) indicates that a nearly baryon-free region is created at midrapidity.
Original language | English |
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Pages (from-to) | 225-235 |
Number of pages | 11 |
Journal | Acta Physica Hungarica, Series A: Heavy Ion Physics |
Volume | 15 |
Issue number | 3-4 |
DOIs | |
State | Published - 2002 |
Event | Proceedings of the 17th Winter Workshop on Nuclear Dynamics - Park City, UT, United States Duration: 10 Mar 2001 → 17 Mar 2001 |
Keywords
- Antiparticle - particle ratio
- Charged particle multiplicity
- Elliptic flow
- Relativistic heavy-ion collisions