Event-Shape Engineering and Jet Quenching

TL;DR

Event-Shape Engineering (ESE) allows for controlled variation of initial geometry in heavy-ion collisions, providing new insights into jet quenching and potential differences in quenching between light and heavy quarks.

Contribution

This paper proposes using ESE to control path length in heavy-ion collisions, offering a novel experimental approach to study jet quenching and quark mass dependence.

Findings

ESE can vary in-plane and out-of-plane path lengths while keeping medium properties fixed.

Parallel ESE studies for light and heavy quarks can reveal differences in quenching mechanisms.

ESE provides additional experimental constraints on jet quenching models.

Abstract

Event-Shape Engineering (ESE) is a tool that enables some control of the initial geometry in heavy-ion collisions in a similar way as the centrality enables some control of the number of participants. Utilizing ESE, the path length in and out-of plane can be varied while keeping the medium properties (centrality) fixed. In this proceeding it is argued that this provides additional experimental information about jet quenching. Finally, it is suggested that if ESE studies are done in parallel for light and heavy quarks one can determine, in a model independent way, if the path-length dependence of their quenching differs.