Principle and prospect of Bose-Einstein correlation study at BESIII

TL;DR

This paper discusses the principles and potential of measuring Bose-Einstein correlations at BESIII, including theoretical foundations, simulation studies, and actual experimental measurements to determine hadron source parameters.

Contribution

It introduces a comprehensive overview of Bose-Einstein correlation measurement methods and presents initial experimental results from BESIII data.

Findings

Monte Carlo simulations identify key features of correlations.

Expected measurement precision of a few percent for source parameters.

Feasibility of experimental measurement at BESIII confirmed.

Abstract

One method for determining the characteristic parameters of a hadron production source is to measure the Bose-Einstein correlation functions. In this study, we present fundamental concepts and formulas related to the Bose-Einstein correlations, focusing on the measurement principles and the Lund model from an experimental perspective. We perform Monte Carlo simulations using the Lund model generator in the 2-3 GeV energy range. Through these feasibility studies, we identify key features of the Bose-Einstein correlations that offer valuable insights for experimental measurements. Utilizing data samples collected at BESIII, we perform measurements of the Bose-Einstein correlation functions, with an expected experimental precision of a few percent for the hadron source radius and incoherence parameter.