https://doi.org/10.1140/epjp/s13360-023-04851-z
Regular Article
Tsallis fits of 
and 
mesons in 
collisions
1
Department of Physics, Faculty of Sciences, International Islamic University(IIU), H-10, 44000, Islamabad, Pakistan
2
Department of Physics, COMSATS University Islamabad Campus, Park Road Chak Shahzad, 44000, Islamabad, Pakistan
3
Department of Physics, University of Science and Technology Bannu, 28100, Bannu, Khyber Pakhtunkhwa, Pakistan
a alamgir.phdphy106@iiu.edu.pk, alamgir054@yahoo.com
Received:
26
June
2023
Accepted:
26
December
2023
Published online:
25
January
2024
We have reported the production of and mesons as a function of 
in the range of 
GeV/c and 
GeV/c for collisions in the rapidity region of 
at 
and 8.16 GeV, respectively. The spectra for and mesons are generated by using PYTHIA8 tuned to parton showers (time-like, space-like, VINCIA and DIRE showers). The spectra for and mesons cannot be produced by time-like showers but give good agreement for remaining showers. Additionally, we also investigated the thermodynamic properties of and mesons in collisions extracted through the fitting of the Tsallis distribution function over the ALICE data. A comparison of the spectra produced by PYTHIA8 with ALICE data shows some deviations. Also, the ALICE data is used for fitting with the non extensive Tsallis distribution function to extract the effective temperature, 
, chemical potential, 
and value of non extensive parameter, q.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
