Thermal description of hadrons thermodynamics using Tsallis distribution | ||||
| Journal of Basic and Environmental Sciences | ||||
| Volume 5, Issue 4, October 2018, Page 342-348 PDF (419.98 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jbes.2018.370557 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| Mahmoud Hanafy | ||||
| Physics Department, Faculty of Science, Benha University, 13518, Benha, Egypt | ||||
| Abstract | ||||
| Thermodynamic quantities such as normalized pressure P/T 4 , normalized energy density ρ/T 4 and trace anomaly (ρ − 3P) /T 4 are calculated for hadrons in the framework of Tsallis distribution at different values of the baryon chemical potential, µb = 0, 170, 340, 425 MeV through temperatures spanning from 120 MeV to 200 MeV. The used values of Tsallis parameter q are 1.15, 1.12, 1.1 and 1.002. The obtained results are compared with the corresponding Lattice Quantum Chromodynamics (LQCD) data. At freezeout temperature of approximately ' .155 GeV and vanishing chemical potential, the calculated results are shown a good fit with the used lattice results where q = 1.15. At non-vanishing chemical potential, the fitting between Tsallis distribution and the lattice results becomes good at (µb, q) = (.170, 1.12), (.340, 1.1), and (.340, 1.002), where the values of µb is represented in GeV. The disagreement between the used model and the corresponding LQCD data alerts for more investigations with other models. | ||||
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