Mass hierarchy and energy scaling of the Tsallis--Pareto parameters in hadron productions at RHIC and LHC energies

Abstract

The latest, high-accuracy identified hadron spectra measurements in high-energy 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. The observed mass and $\sqrt{s}$ 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.

arXiv commentTalk given by G.Bíró at SQM 2017, Utrecht, 4 pages

References in corpus (13)

• Systematic Measurements of Identified Particle Spectra in pp, d+Au and Au+Au Collisions from STAR
• Enhanced production of multi-strange hadrons in high-multiplicity proton-proton collisions
• Multiplicity Dependence of Pion, Kaon, Proton and Lambda Production in p-Pb Collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Thermodynamic Derivation of the Tsallis and Rényi Entropy Formulas and the Temperature of Quark-Gluon Plasma
• Systematic Analysis of the Non-extensive Statistical Approach in High Energy Particle Collisions - Experiment vs. Theory
• Nuclear Modification Factor Using Tsallis Non-extensive Statistics
• Revealing the source of the radial flow patterns in proton--proton collisions using hard probes
• On the Use of the Tsallis Distribution at LHC Energies
• Application of the Non-extensive Statistical Approach to High Energy Particle Collisions
• System size dependence of the log-periodic oscillations of transverse momentum spectra
• A new two-component model for hadron production in heavy-ion collisions
• A 'soft+hard' model for Pion, Kaon, and Proton Spectra and $v_2$ measured in PbPb Collisions at $\sqrt{s}=2.76A$TeV
• Near and Far from Equilibrium Power-Law Statistics

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