Abstract.
We review transverse momentum distributions of various identified charged particles stemming from high energy collisions fitted by various non-extensive distributions as well as by the usual Boltzmann-Gibbs statistics. We investigate the best-fit formula with the obtained \( \chi^2/ndf\) values. We find that the physical mass and \( \sqrt{s}\) scaling become more explicit with heavier produced hadrons in both proton-proton and heavy-ion collisions. The spectral shape parameters, in particular the temperature T and the non-extensive Tsallis parameter q, do exhibit an almost linear dependence with the centrality-dependence in heavy-ion collisions.
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Communicated by A. Peshier
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This manuscript has no associated data or the data will not be deposited. [Authors’ comment: The experimental data in the figures or in this study is cited in the references and the fitting results have been listed in the context.]
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Shen, K., Barnaföldi, G.G. & Biró, T.S. Hadronization within the non-extensive approach and the evolution of the parameters. Eur. Phys. J. A 55, 126 (2019). https://doi.org/10.1140/epja/i2019-12813-4
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DOI: https://doi.org/10.1140/epja/i2019-12813-4