Multiplicity dependence of the entropy and heat capacity for pp collisions at LHC energies
DOI:
https://doi.org/10.31349/RevMexFis.72.010802Keywords:
ultrarelativistic collisions, entropy, heat capacity, nonextensivity, pT spectrumAbstract
We investigate the multiplicity dependence of the transverse momentum spectrum of the charged particle production in pp collisions at LHC energies. To this end, we consider the experimental data classified with different multiplicity estimators, defined by the ALICE Collaboration, that are analyzed under the picture of the nonextensive particle production. We compute the variance, kurtosis, Shannon entropy, and heat capacity of the $p_T$ spectrum to study the hardening process as a function of the multiplicity and temperature under the different event classifiers. We found that both the Shannon entropy and the heat capacity show different responses for the triggers at the forward-backward and midrapidity regions. We emphasize that the selection of event biases may induce different responses in estimating theoretical and phenomenological observables that could lead to misleading conclusions.
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Copyright (c) 2026 C. E. Munguía López, D. Rosales Herrera, J. R. Alvarado García, A. Fernández Téllez, J. E. Ramírez
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