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arXiv · 1905.05736

Hadronization within the Non-Extensive Approach and the Evolution of the Parameters

Keming Shen·Gergely Gábor Barnaföldi·Tamás Sándor Biró
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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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Keming Shen, Gergely Gábor Barnaföldi, Tamás Sándor Biró. 2019-05-14. Hadronization within the Non-Extensive Approach and the Evolution of the Parameters. https://doi.org/10.1140/epja%2Fi2019-12813-4

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