https://doi.org/10.1051/epjconf/201817114008
Mass hierarchy and energy scaling of the Tsallis – Pareto parameters in hadron productions at RHIC and LHC energies
1
Wigner Research Centre for Physics of the H.A.S., P.O. Box, H-1525 Budapest, Hungary
2
Institute of Physics, Eötvös University, 1/A Pázmány P. Sétány, H-1117 Budapest, Hungary
3
Key Laboratory of Quark & Lepton Physics and Institute of Particle Physics, Central China Normal University, Wuhan 430079, China
* e-mail: biro.gabor@wigner.mta.hu
Published online: 2 February 2018
The latest, high-accuracy identified hadron spectra measurements in highenergy nuclear collisions led us to the investigation of the strongly interacting particles and collective effects in small systems. Since microscopical processes result in a statistical Tsallis – Pareto distribution, the fit parameters q and T are well suited for identifying system size scalings and initial conditions. Moreover, parameter values provide information on the deviation from the extensive, Boltzmann – Gibbs statistics in finite-volumes. We apply here the fit procedure developed in our earlier study for proton-proton collisions [1, 2]. The observed mass and center-of-mass energy trends in the hadron production are compared to RHIC dAu and LHC pPb data in different centrality/multiplicity classes. Here we present new results on mass hierarchy in pp and pA from light to heavy hadrons.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
