Event shape and multiplicity dependence of ϕ meson production in pp collisions with ALICE at the LHC and characterization of heavy-ion collisions using relativistic kinetic theory

Historically the pp collisions were considered as a baseline for the formation of QGP in heavy-ion collisions due to their significantly smaller system size compared to heavy-ion collisions. In pp collisions, it was expected that the final state particles are mostly the result of the fragmentations of the two protons. Highlighted here are the major objectives and important results, which will give a glimpse of the works done: a double differential (Event shape and Multiplicity) study of ϕ meson production with ALICE at the LHC. It has been observed that it behaves like a particle with net strangeness of one or two in small systems even though its net strangeness is zero. The present attempt to formulate a model to characterize the heavy-ion collisions using relativistic kinetic theory in the form of Boltzmann Transport equation using relaxation time approximation may help to connect hadronic collisions to nucleus-nucleus collisions