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

TL;DR

This paper investigates how Multiple Parton Interactions influence the production of charmonia in high-energy proton-proton collisions at the LHC, revealing their impact on both soft and hard particle production.

Contribution

It provides new insights into the energy and multiplicity dependence of charmonium production, highlighting MPI's role in heavy particle yields at LHC energies.

Findings

MPI affects both soft and hard particle production.

Charmonium yield increases with event multiplicity.

Energy dependence of charmonium production analyzed.

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 $\rm J/\psi$ 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.