Rapidity-dependent jet energy loss in small systems with finite-size effects and running coupling

TL;DR

This paper investigates how jet energy loss varies with rapidity in small, asymmetric collision systems, highlighting the importance of finite-size effects and running coupling in understanding quark-gluon plasma formation.

Contribution

The study introduces improved modeling of jet energy loss in small systems using an enhanced MARTINI framework, accounting for finite-size effects and running coupling, leading to better agreement with experimental data.

Findings

Visible jet energy loss in high-multiplicity p-Pb collisions

Correlation between jet energy loss and elliptic flow coefficients

Enhanced modeling improves nuclear modification factor calculations

Abstract

Longitudinal dynamics of particle production and rapidity-dependent jet energy loss are investigated in small and asymmetric colliding systems. We utilize an improved version of \textsc{martini} in which two improvements are implemented to calculate the effect of the strongly coupled QGP droplet on jet energy loss. We show that those realistic prescriptions improve the results of nuclear modification factor calculations. We also observe visible energy loss of jets in a thermal background of high-multiplicity p-Pb collisions, and a clear correlation between the energy loss and elliptic flow coefficients for energetic particles. We conclude that systematic measurements of jet quenching in central collisions of small systems can support the formation of the QGP droplet.