Blast-wave-Tsallis-power model for p_{\rm T}-spectra and elliptic flow v₂ of hadrons in collisions of identical nuclei at energies available at the Large Hadron Collider

2025/09/01 by S. Grigoryan, Grigoryan, Smbat
Physics and Astronomy · #High-Energy Particle Collisions Research #Statistical Mechanics and Entropy #Particle physics theoretical and experimental studies

paper · pdf · doi:10.48550/arxiv.2509.01807

Abstract

A generalization of the phenomenological blast-wave-Tsallis-power model, recently proposed by the author for the hadrons transverse momentum (p_\textrmT) spectra measured at the LHC, is developed to also describe the hadrons p_\textrmT-differential elliptic flow coefficients v₂ in identical nuclei collisions of different centralities. The model describes well the available data on p_\textrmT-spectra and v₂ for any p_\textrmT of various particles, from pions to charmonia, in Pb--Pb at √(s_NN)= 2.76 and 5.02~TeV, and in Xe--Xe at √(s_NN)= 5.44~TeV. Also, predictions for OO collisions at √(s_NN)= 5.36~TeV are given. While the model is mainly targeting the LHC energies, it also works at much lower RHIC energies.

Related

• Identified particle spectra in Pb–Pb, Xe–Xe and p–Pb collisions with the Tsallis blast-wave model
• Elliptic flow from pQCD + saturation + hydro model
• A unified formalism to study soft as well as hard part of the transverse momentum spectra
• Dependence of elliptic flow on transverse momentum in √\mathrm\it s_NN=200 GeV Au-Au and √\mathrm\it s_NN=2.76 TeV Pb-Pb collisions
• On elliptic flow and the blast-wave model