Two particle correlation effects and Differential HBT for rotation in heavy ion collisions

TL;DR

This paper explores how two-particle correlations, specifically the Differential HBT method, can detect rotational effects in peripheral ultra-relativistic heavy ion collisions, using fluid dynamical models to analyze sensitivity.

Contribution

It introduces the application of the Differential HBT method to identify rotation in heavy ion collisions and assesses its effectiveness through fluid dynamical modeling.

Findings

Differential HBT can detect rotational effects in heavy ion collisions.

Sensitivity of the method depends on system expansion and angular momentum.

Fluid dynamical models support the feasibility of the approach.

Abstract

Peripheral heavy ion reactions at ultra relativistic energies have large angular momentum that can be studied via two particle correlations using the Differential Hanbury Brown and Twiss method. We analyze the possibilities and sensitivity of the method in a rotating system. We also study an expanding solution of the fluid dynamical model of heavy ion reactions.