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Study of thermal properties of the medium produced in Au+Au collisions at sNN = 19.6GeV using a thermal modelстатья
- Авторы: Bairathi V., Blaschke D., Bravina L., Brooks W.K., Chhabra T., Kabana S., Vitiuk O., Zabrodin E., Zherebtsova E.
- Журнал: International Journal of Modern Physics E
- Том: 33
- Номер: 12
- Год издания: 2024
- Издательство: World Scientific Publishing Co
- Местоположение издательства: Singapore
- Номер статьи: 2442003
- DOI: 10.1142/s0218301324420035
- Аннотация: 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 + Au collisions at √s_NN=19.6 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 χ^2 minimization technique is employed to obtain thermal properties. We also obtain thermal properties with strangeness conversation condition and at zero potentials μ_B∕T=μ_S∕T=0. We compared particle ratios from the thermal model with the experimental data. The thermal model describes particle ratios within ±2 standard deviations and χ^2∕NDF 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.
- Добавил в систему: Забродин Евгений Евгеньевич