Jet modification in absence of QGP-medium: the role of multiparton interactions and color reconnection

• DOI: 10.48550/arxiv.2209.00972
• Publication Date: 2022-01-01
• Authors: P. Das; A. Modak; D. Banerjee; R. Biswas; Supriya Das; Sanjay Kumar Ghosh; Sibaji Raha; S. K. Prasad
• Keywords: Multiplicity (mathematics); Jet quenching

Recent studies of high-multiplicity events in small collision systems (proton-proton and proton-lead) have drawn research interest towards the possibility formation partonic medium such systems. One important consequences dense is quenching high-momentum final-state particles resulting several experimental observations as suppression nuclear modification factor $R_{\rm AA}$, jet shape observable $\rho(r)$, etc. In this work, we study $\rho(r)$ for inclusive charged-particle jets proton-proton (pp) collisions at $\sqrt{s}$ = 13 TeV using PYTHIA 8 Monash 2013 Monte Carlo simulation show that color reconnection (CR) multiparton interaction (MPI) mechanisms can also lead to a significant amount compared minimum bias 10 $<p_{\rm T,\,jet}^{\rm ch}<$ 20 GeV/$c$. The enhanced gluonic contribution found play role observed $\rho(r)$. We notice direct connection between number MPIs - larger MPIs,