Speaker
Description
A new observable, ST , is introduced in terms of the sum of the transverse momentum of charged particles (Sum pT i ) produced in proton proton (p−p) collisions at LHC energies to probe the underlying events (UE). The UE are defined as those aspects of p−p collisions that are not attributed to the primary hard scattering process, but rather to the accompanying interactions of the rest
of the proton. The conventional approach of studying underlying events is usually carried out by defining topological regions with respect to the leading particle in an event. The transverse region
is generally sensitive to UE and various classifiers have been used to discriminate the extent of UE activity regions. The production of identified particles like π±, K±, p, K0S , and Λ0 are studied
in different ranges of transverse activity classifier in p−p collisions at √s = 13 TeV using pQCD inspired PYTHIA 8 event generator. A comparative analysis of the identified particle spectra, mean multiplicity and mean transverse momentum has been carried out with respect to ST and the performance of this new observable is gauged by comparing the results with previously defined RT
observable
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