Systematic analysis of the pp collisions at LHC energies with Tsallis function

Abstract

This work focuses on the study of identified hadrons and strange hadrons, recorded by CMS, and light nuclei and their anti-nuclei, recorded by ALICE, at 0.9 TeV, 2.76 TeV, 7 TeV and 13 TeV centre of mass energies in pp collision at mid rapidities. The transverse momentum distributions of these particles are analyzed using the Tsallis model, which fits the experimental data very well. Several important parameters for studying the characteristics of the medium produced during such collisions are extracted. The effective temperature (T) increases monotonically with increasing particle mass and also with increasing collision energy. The non-extensivity parameter (q) decreases with the mass of the particle. For heavier particles, greater T and smaller q mean that they decouple early from the system and attain equilibrium quickly compared to lighter ones. Furthermore, with an increase in collision energy, the multiplicity parameter N0 increases.

11 pages, 5 figures

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Cited by in corpus (4)

• Multiplicity dependence of the freezeout parameters in high energy hadron-hadron collisions
• Evolution of Effective Temperature, Kinetic Freeze-out Temperature and transverse flow velocity in pp Collision
• Analyzing the Correlation Between Thermal and Kinematic Parameters in Various Multiplicity Classes within 7 and 13 TeV pp Collisions
• Non-Gaussian Saha's ionization in Rindler spacetime and the equivalence principle