Evolution of the hot dense matter at LHC energies through light and heavy-flavor hadrons using non-extensive thermodynamics

Abstract

We investigate the formation and evolution of hot systems comprising charmed and light hadrons using non-extensive thermodynamics. We analyze data from pp, p--Pb, and Pb--Pb collisions at center-of-mass energies ranging from $\sqrt{s_{\mathrm{NN}}}=2.76$~TeV to 13~TeV, measured by the CERN LHC ALICE experiment. The hadron species examined include charged pions and kaons, ${\mathrm{K}}_{\mathrm{s}}^0$, (anti)protons, $\varphi$ mesons, ${\Lambda }^0$ hyperons, and D mesons. Employing our previously established methods, we determine the common Tsallis parameters $T_{\mathrm{eq}}$ and $q_{\mathrm{eq}}$ for each hadron type. While charm comes from earlier than light hadrons, we see that $T_{\mathrm{eq}}$ is ordered by mass, reflecting a similar ordering in the time-scale relevant for the spectrum. Our results also allow for constraining the heat capacity of the system. The current analysis thus enhances our understanding of hadron production dynamics and thermal properties in high-energy collisions.

References in corpus (6)

• Observation of long-range near-side angular correlations in proton-lead collisions at the LHC
• Measurement of ${\mathrm{D}}^0$, ${\mathrm{D}}^{+}$, ${\mathrm{D}}^{\ast +}$ and ${{\mathrm{D}}^{+}}_s$ production in pp collisions at $\sqrt{\text{s}}=5.02\mathbf{TeV}$ with ALICE
• Systematic Analysis of the Non-extensive Statistical Approach in High Energy Particle Collisions - Experiment vs. Theory
• Emergence of long-range angular correlations in low-multiplicity proton-proton collisions
• RHIC physics overview
• How far can we see back in time in high-energy collisions using charm hadrons?

Cited by in corpus (1)

• Effect of event classification on the Tsallis-thermometer