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Hadronization within the non-extensive approach and the evolution of the parameters

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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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Authors and Affiliations

  1. Wigner Research Center for Physics of the HAS, 29-33 Konkoly-Thege Miklós Street, 1121, Budapest, Hungary

    Keming Shen, Gergely Gábor Barnaföldi & Tamás Sándor Biró

Authors
  1. Keming Shen
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  2. Gergely Gábor Barnaföldi
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  3. Tamás Sándor Biró
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Correspondence to Keming Shen.

Additional information

Communicated by A. Peshier

Data Availability Statement

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

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