Hadron Spectra Parameters within the Non-Extensive Approach

Universe

TamásSándor Biró¹  GergelyGábor Barnaföldi¹  Keming Shen¹ 

[1] Wigner Research Center for Physics of HAS, 29-33 Konkoly-Thege Miklós Street, 1121 Budapest, Hungary;

关键词: transverse momentum spectra;    non-extensive;    heavy-ion collisions;   

DOI  :  10.3390/universe5050122

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown