Speaker
Description
The long-range near-side ridge phenomenon in two-particle correlation(∆φ-Δη) provides significant insights into the dynamics of the early stage of collisions, governed by strong interactions. Although the hydrodynamic model describes this ridge structure in heavy ion collisions, this could not offer the enough explanation that ridge phenomenon occurs in the small systems such as pp collisions and p-Pb collisions, where the density and temperature are not enough to generate a hydrodynamic medium. The Momentum Kick Model (MKM) explains this effect via high-momentum jet particles transferring momentum to medium partons, inducing collective motion and has been successful in reproducing the experimental results. In recent study, this MKM extends its application related to the multiplicity in pp collisions. It connects the average number of kicked partons with charged-particle multiplicity through the impact parameter. In this work, we further extend this relation to pPb collision. We analyze the recent experimental pPb LHC data to explain the ridge structures and compare two results from pp and p-Pb collisions.
