Influence of in-medium mass width on Hanbury Brown-Twiss correlation strength

TL;DR

This paper studies how the in-medium mass width of particles affects the Hanbury Brown-Twiss correlation strength in high-energy heavy-ion collisions, revealing that larger mass widths weaken the correlation, especially for heavier bosons and at lower momenta.

Contribution

It provides the first analysis of the impact of in-medium mass width on HBT correlation strength in heavy-ion collisions.

Findings

HBT correlation strength decreases with increasing in-medium mass width.

The effect is more pronounced for heavier bosons.

The influence diminishes as particle momentum increases.

Abstract

The interactions of particles with medium may lead to a nonzero in-medium mass width of the particles and cause them to have different masses in the medium. In this letter, we investigate the influence of the in-medium mass width on the strength of Hanbury Brown-Twiss (HBT) correlation in high-energy heavy-ion collisions. It is found that the strength decreases with in-medium mass width of identical bosons. This influence are more significant for the boson with heavier mass and decreases with increasing particle momentum.