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Hadron Spectra Parameters within the Non-Extensive Approach

Wigner Research Center for Physics of HAS, 29-33 Konkoly-Thege Miklós Street, 1121 Budapest, Hungary
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
This paper is based on my talk at the 18th Zimányi School, Budapest, Hungary, 3–7 December 2018.
Universe 2019, 5(5), 122;
Received: 8 April 2019 / Revised: 18 May 2019 / Accepted: 20 May 2019 / Published: 21 May 2019
(This article belongs to the Special Issue The Zimányi School and Analytic Hydrodynamics in High Energy Physics)
We investigate how the non-extensive approach works in high-energy physics. Transverse momentum ( p T ) spectra of several hadrons are fitted by various non-extensive momentum distributions and by the Boltzmann–Gibbs statistics. It is shown that some non-extensive distributions can be transferred one into another. We find explicit hadron mass and center-of-mass energy scaling both in the temperature and in the non-extensive parameter, q, in proton–proton and heavy-ion collisions. We find that the temperature depends linearly, but the Tsallis q follows a logarithmic dependence on the collision energy in proton–proton collisions. In the nucleus–nucleus collisions, on the other hand, T and q correlate linearly, as was predicted in our previous work. View Full-Text
Keywords: transverse momentum spectra; non-extensive; heavy-ion collisions transverse momentum spectra; non-extensive; heavy-ion collisions
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Shen, K.; Barnaföldi, G.G.; Biró, T.S. Hadron Spectra Parameters within the Non-Extensive Approach. Universe 2019, 5, 122.

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