Study of thermal properties of the medium produced in Au+Au collisions at sNN = 19.6GeV using a thermal model

In this paper, we present the thermal properties of the medium formed in ultra-relativistic heavy-ion collisions at chemical freeze-out using a thermal model. Experimental data of various hadron species from 0–5% most central Au[Formula: see text]Au collisions at [Formula: see text][Formula: see text]GeV from the STAR BES program are used to analyze the thermal properties, namely chemical freeze-out temperature, baryon chemical potential and strangeness chemical potential. A [Formula: see text] minimization technique is employed to obtain thermal properties. We also obtain thermal properties with strangeness conversation condition and at zero potentials [Formula: see text]. We compared particle ratios from the thermal model with the experimental data. The thermal model describes particle ratios within [Formula: see text]2 standard deviations and [Formula: see text] between 1–2. We discuss collision energy dependence of thermodynamic properties of the medium at freeze-out and compare results with the published STAR results and other thermal model calculations.