Interpreting BEC in e+ e- annihilation
IMAPP, Radboud University, NL-6525 AJ Nijmegen, The Netherlands
2 Wigner RCP, Konkoly-Thege 29-33, H-1121 Budapest XII, Hungary
3 Eszterházy University, Mátrai út 36, H-3200 Gyöngyös, Hungary
4 Eötvös University, Pázmány Péter Sétány 1/A, H-1111 Budapest, Hungary
* e-mail: W.Metzger@science.ru.nl
Published online: 19 April 2019
The usual interpretation of Bose-Einstein correlations (BEC) of identical boson pairs relates the width of the peak in the correlation function at small relative four-momentum to the spatial extent of the source of the bosons. However, in the τ-model, which successfully describes BEC in hadronic Z decay, the width of the peak is related to the temporal extent of boson emission. Some new checks on the validity of both the τ-model and the usual descriptions are presented.
© The Authors, published by EDP Sciences, 2019
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