Evidence for low freeze-out temperature and large transverse flow in central collisions of Pb + Pb at 158 AGeV
Abstract
Utilizing a hydrodynamical model for the freeze-out stage in heavy-ion reactions, we extract from resolved transverse hadron spectra at midrapidity an inverse slope parameter (temperature) TPb = 120 MeV and an averaged transverse flow velocity v Pbaver = 0.43 c in central collisions of Pb + Pb at 158 AGeV.
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