Heavy flavor production in p–p collisions as a function of multiplicity using different modes of Pythia 8

Abstract

Abstract The production of mesons containing charm quarks in p–p collisions at s = 7 TeV has been explored as a function of multiplicity using Pythia 8 event generator. The effects of various processes at the partonic level such as different modes of color reconnection and rope hadronization have been studied. The comparison of relative yields (Yield/⟨Yield⟩) of D-mesons and J/ψ as a function of charged-particle multiplicity for various transverse momentum (p T) ranges, measured by the ALICE experiment with the estimations of the Pythia 8 model is performed. The results are in reasonable agreement within the framework of microscopic processes. The relative yields of B-mesons have also been predicted for various pT intervals (1 <pT< 20 GeV/c) with Pythia 8 in p–p collisions at s = 7 TeV.