Insight into Multiple Partonic Interactions and Production of Charmonia in p+p Collisions at the LHC energies

Abstract

At the LHC energies, the underlying observables are of major topic of interest in high multiplicity $p+p$ collisions. Multiple Parton Interactions (MPI) is one of them, in which several interactions occur in a single $p+p$ collision. It is believed that MPI is the main reason behind the high multiplicity in $p+p$ collisions at the LHC. It was believed that MPI has only effect to the soft particle production, but recent ALICE result reveals that it can also affect the hard-particle production. In such case, the self normalized yield of heavy particle like $J/\psi$ shows an increasing trend with event multiplicity. In the present contribution, we discuss the energy and multiplicity dependence of charmonium production to understand the effects of MPI on charmonium production.

Comments: 7 pages, To appear in the proceedings of 16th Conference on Flavor Physics and CP Violation - FPCP 2018 (Springer Proceedings in Physics). Presentation was given by Raghunath Sahoo