Evaluations of freeze-out parameters from dEₜ dη / dNch dη ratio measured at RHIC and SPS

الأصل · EN

In the presented paper curves of constant εₜ / ncharged are calculated in T-μB plane, in the framework of a single-freeze-out thermal hadron gas model. The ratio is a theoretical equivalent of dEₜ dη η=0 / dNch dη η=0 measured at RHIC and SPS. In both εₜ and ncharged decays of hadron resonances are taken into account. The freeze-out temperature Tf.ₒ.=156₋₁₁⁺¹⁴ MeV is obtained for RHIC, whereas Tf.ₒ.=134-140 MeV is evaluated for SPS.