6533b830fe1ef96bd1296e9b

RESEARCH PRODUCT

Non-zero chemical potential and the shape of the pT-distribution of hadrons in heavy-ion collisions

M. KatajaP.v. Ruuskanen

subject

PhysicsNuclear and High Energy PhysicsLarge Hadron ColliderNuclear TheoryHadronZero (complex analysis)Spectral lineNuclear physicsTransverse planePionDistribution (mathematics)Atomic physicsNuclear ExperimentNucleon

description

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.

https://doi.org/10.1016/0370-2693(90)90836-u