Relativistic effects on the back-to-back correlation functions of boson-antiboson pairs in high energy heavy ion collisions

TL;DR

This paper investigates how relativistic effects influence the back-to-back correlation functions of boson-antiboson pairs in high energy heavy ion collisions, highlighting significant effects for high-momentum kaon pairs and their dependence on freeze-out temperature.

Contribution

It provides a detailed Monte Carlo analysis of relativistic effects on BBC functions for specific boson-antiboson pairs in heavy ion collisions, emphasizing the importance of these effects at high momenta.

Findings

Relativistic effects are significant for high-momentum $K^+K^-$ pairs.

The effects are sensitive to the particle freeze-out temperature.

Relativistic effects on $\phi ext{-}\phi$ pairs are also analyzed.

Abstract

We calculate the back-to-back correlation (BBC) functions of relativistic boson-antiboson pairs in high energy heavy ion collisions using the Monte Carlo method. The relativistic effects on the BBC functions of $\phi\,\phi$ and $K^+K^-$ pairs are investigated. The investigations indicate that the relativistic effects on the BBC functions of $K^+K^-$ pairs with large momenta are significant, and the effect is sensitive to the particle freeze-out temperature.