2015/08/06 by Inam-ul Bashir, Saeed Uddin, Riyaz Ahmed Bhat +1
Mathematics · Physics and Astronomy · #High-Energy Particle Collisions Research #Quantum Chromodynamics and Particle Interactions #Statistical Methods and Bayesian Inference
paper · doi:10.1142/s0217751x15501390
openalex publication_date 2015/08/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Midrapidity results on multiplicity density [Formula: see text] and transverse momentum distributions [Formula: see text] of pions, kaons and protons in Au + Au collisions at [Formula: see text] are reproduced by using our earlier proposed Unified Statistical Thermal Freeze-out Model (USTFM). The calculated results are found to be in fairly good agreement with the experimental data points taken from STAR experiment. Freeze-out conditions in terms of a transverse flow velocity parameter and the thermal freeze-out temperature are extracted from the fits of transverse momentum spectra of the particles at different collision centralities. A large value of midrapidity chemical potential reveals the effects of almost complete stopping in the center-of-mass frame of the system produced. The resonance decay contributions are found to have a negligible effect on the transverse momentum spectra of the particles while these are found to be significant for determining the shape of the rapidity spectra.