Transverse spherocity and multiplicity dependence of $R_{2}$ and $P_{2}$ correlation functions in pp collisions

Abstract

Transverse spherocity(𝑆 0 ) has evolved as a powerful tool to separate soft and hard contributions in an event in small collision systems. We used two-particle differential-number correlation functions, 𝑅 2 , and transverse momentum correlation functions, 𝑃 2 , of charged particles produced in pp collisions at √ s = 7 TeV with the PYTHIA model to understand this phenomena. The Δ𝜑-dependance of these correlation functions in different multiplicity and 𝑆 0 classes are studied. In addition, mean-p T of charged particles for low-𝑆 0 , high-𝑆 0 and 𝑆 0 -integrated are discussed. Finally, it was observed that 𝑆 0 should be a good observable as compared to multiplicity to disentangle jetty and isotropic events in a small collision system.