Ultra-relativistic nuclear collisions: event shape engineering

TL;DR

This paper introduces event shape engineering, a method to select collision events based on initial geometric fluctuations, enabling more precise tests of high energy nuclear collision theories and properties of hot QCD matter.

Contribution

It presents a novel technique to utilize initial geometry fluctuations for event selection in high energy nuclear collisions.

Findings

Event shape engineering allows for targeted event selection.

This method enhances the ability to test QCD matter properties.

It opens new avenues for quantitative analysis in nuclear collision experiments.

Abstract

The evolution of the system created in a high energy nuclear collision is very sensitive to the fluctuations in the initial geometry of the system. In this letter we show how one can utilize these large fluctuations to select events corresponding to a specific initial shape. Such an "event shape engineering" opens many new possibilities in quantitative test of the theory of high energy nuclear collisions and understanding the properties of high density hot QCD matter.