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New Bose-Einstein Results from L3

W. J. Metzger

hep-pharXiv:hep-ph/0112049

Abstract

In hadronic Z decays, we compare Bose-Einstein correlations in pairs with those in identical charged pion pairs. We also measure Bose-Einstein correlations in triplets of identical charged pions. From the first study, the source radius is found to be smaller for - than for -, as would be expected, e.g., in a string model. However, the second study shows that the data are consistent with the pion production being completely incoherent. Both studies use data collected by the L3 collaboration at LEP.

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