Light front analysis towards the study of thermalisation in pp collisions at √(s)= 13 TeV

2021/03/31 by Nair, Rahul Ramachandran
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2103.16859

Abstract

An analysis involving the light front variables of inclusively produced hadrons in proton-proton (pp) collisions to study the thermalisation and formation of a QGP-like medium is presented in this paper. Two schemes of analysis are discussed and performed with inclusively produced π^±, K^± and p(p) in the central pp collisions at √(s) = 13 TeV simulated using the PYTHIA 8 event generator. It is shown that a group of π^± and K^± falling inside a paraboloid defined by a certain constant value of the light front variable in their respective phase space follows the Bose-Einstein statistics while the p(p) inside the similar paraboloid in its phase space follows the Fermi-Dirac statistics. It is also shown that for the π^±, K^± and p(p) with transverse momentum p_T < 1 GeV in these collisions, a polynomial in p_T can be constructed for a specific light front variable of the particle ζ_c (p_T) such that the π^± and K^± with their light front variable ζ^± > ζ_c (p_T) follows Bose-Einstein statistics while the p(p) with ζ^± > ζ_c (p_T) follows the Fermi-Dirac statistics. The analysis can serve as a baseline for an investigation towards the QGP formation and thermalisation in the pp collisions at LHC.

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