Bose-Einstein correlations in a space-time approach to e+e- annihilation into hadrons

A new treatment of Bose-Einstein correlations is incorporated in a space-time parton-shower model for e+e– annihilation into hadrons. Two alternative algorithms are discussed, and we use a simple calculable model to demonstrate that they reproduce successfully the size of the hadron emission region. One of the algorithms is used to calculate two-pion correlations in e+e–-->Z0-->hadrons and e+e–-->W+W–-->hadrons. Results are shown with and without resonance decays, for correlations along and transverse to the thrust jet axis in these two classes of events.