Parametrization of Bose-Einstein Correlations and Reconstruction of the Source Function in Hadronic Z-boson Decays using the L3 Detector

TL;DR

This paper analyzes Bose-Einstein correlations of identical pions in Z-boson decays, employing Levy stable distributions and the tau-model to parametrize data and reconstruct the source function.

Contribution

It introduces a novel parametrization approach combining Levy distributions with the tau-model for better description of correlations in Z decay data.

Findings

Levy distribution provides a good fit to the correlation data.

Reconstruction of the source function reveals detailed spatial characteristics.

The tau-model effectively links configuration and momentum space correlations.

Abstract

Bose-Einstein correlations of pairs of identical charged pions produced in hadronic Z decays are analyzed in terms of various parametrizations. A good description is achieved using a Levy stable distribution in conjunction with a hadronization model having highly correlated configuration and momentum space, the tau-model. Using these results, the source function is reconstructed.