2015/10/20 by Inam-ul Bashir, Bashir, Inam-ul, Saeed Uddin +1
Mathematics · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Nuclear Theory (nucl-th) #Statistical Mechanics and Entropy #Stochastic processes and statistical mechanics
paper · pdf · doi:10.48550/arxiv.1510.05882
openalex publication_date 2015/10/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study the identified particle ratios produced at mid-rapidity in heavy ion\ncollisions, along with their correlations with the collision energy. We employ\nour earlier proposed Unified Statistical Thermal Freeze-out Model (USTFM),\nwhich incorporates the effects of both longitudinal as well as transverse\nhydrodynamic flow in the hot hadronic system. A fair agreement seen between the\nexperimental data and our model results confirms that the particle production\nin these collisions is of statistical nature. The variation of the chemical\nfreeze-out temperature and the baryon chemical potential with respect to\ncollision energies is studied. The chemical freeze-out temperature is found to\nbe almost constant beyond the RHIC energy and is found to be close to the QCD\npredicted phase transition temperature suggesting that the chemical freeze-out\noccurs soon after the hadronization takes place. The vanishing value of\nchemical potential at LHC indicates very high degree of nuclear transparency in\nthe collision.\n