Multiplicity Dependence of Like-Sign and Opposite-Sign Correlations in $\bar{p}p$ Reactions

TL;DR

This paper investigates how particle pair correlations depend on event multiplicity in antiproton-proton collisions at high energy, focusing on like-sign and opposite-sign pairs to understand string production effects.

Contribution

It provides the first detailed analysis of multiplicity dependence of charge correlations in $ar{p}p$ reactions at 630 GeV, addressing Bose-Einstein correlation behavior with multiple string production.

Findings

Correlation functions vary with multiplicity

Like-sign and opposite-sign correlations show different patterns

Results inform models of string fragmentation and particle production

Abstract

Discussions about Bose-Einstein correlations between decay products of coproduced W-bosons again raise the question about the behaviour of correlations if several strings are produced. This is studied by the multiplicity dependence of correlation functions of particle pairs with like-sign and opposite-sign charge in $\bar{p}p$ reactions at $\sqrt{s} = 630$ GeV.