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 topics 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. MPIs not only affect the soft particle production, but also as per the recent ALICE results it can affect the production of hard-particles. In such cases, the self normalized yield of heavy particle like J/ψ 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. © Springer Nature Switzerland AG 2019.