Differential HBT Method to Analyze Rotation

TL;DR

This paper introduces a novel differential HBT method to detect rotation in relativistic heavy ion collisions by analyzing two-particle correlations, providing a sensitive tool for studying angular momentum effects.

Contribution

It proposes a new correlation measurement technique specifically designed to detect rotation in the emitting system of heavy ion reactions, demonstrated through simple source models.

Findings

The method can effectively detect rotation effects in simulated models.

It reveals space-time momentum correlations linked to initial angular momentum.

The approach enhances understanding of rotational dynamics in heavy ion collisions.

Abstract

Two particle correlations are studied in the reaction plane of peripheral relativistic heavy ion reactions where the initial state has substantial angular momentum. The earlier predicted rotation effect and Kelvin Helmholtz Instability, leads to space-time momentum correlations among the emitted particles. A specific combination of two particle correlation measurements is proposed, which can sensitively detect the rotation of the emitting system. Here the method is presented in simple few source models where the symmetries and the possibilities of the detection can be demonstrated in a transparent way.