Non-zero chemical potential and the shape of the pT-distribution of hadrons in heavy-ion collisions
- 28 June 1990
- journal article
- Published by Elsevier BV in Physics Letters B
- Vol. 243 (3), 181-184
- https://doi.org/10.1016/0370-2693(90)90836-u
Abstract
The pT-spectra of negative particles from 200 GeV/nucleon O + Au and S + S collisions, measured at CERN by the NA35 collaboration, are fitted by a thermal distribution of massive pions which are strongly out of chemcial equilibrium. Both sets of data are consistent with the same values of temperature and chemical potential, T ≈ 165 MeV and μ ≈ 120 MeV. The low pT behaviour of the measured spectra seems to indicate that the transverse flow in these collisions is not strong.Keywords
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