Bose-Einstein Correlations of pi0 Pairs from Hadronic Z0 Decays

Abstract

We observed Bose-Einstein correlation in pi0 pairs produced in Z0 decays using the data sample collected by the OPAL detector at LEP 1 from 1991 to 1995. Using a static Gaussian picture for the pion emitter source, we obtain the chaoticity parameter lambda = 0.55 +- 0.10 +- 0.10 and the source radius R = (0.59 +- 0.08 +- 0.05) fm. according to the JETSET and HERWIG Monte Carlo models, the Bose-Einstein correlations in our data sample largely connect pi0s originating from the decays of different hadrons. Prompt pions formed at string break-up of cluster decays only form a small fraction of the sample.

18 pages, 5 figures

References in corpus (2)

• Bose-Einstein Correlations in Z Fragmentation and Other Reactions
• Pion Correlations and Resonance Effects in ppbar Annihilation to 4pi0 at Rest

Cited by in corpus (8)

• Investigation of Colour Reconnection in WW Events with the DELPHI detector at LEP-2
• Bose-Einstein study of position-momentum correlations of charged pions in hadronic Z0 decays
• Bose-Einstein correlations of same-sign charged pions in the forward region in $pp$ collisions at $\sqrt{s}$ = 7 TeV
• Study of $b\bar{b}$ correlations in high energy proton-proton collisions
• Bose-Einstein correlations in one and two dimensions in deep inelastic scattering
• On the role of the time scale Delta t in Bose-Einstein correlations
• Study of the Bose-Einstein correlations of same-sign pions in proton-lead collisions
• Bose-Einstein correlations of neutral gauge bosons in $pp$ collisions