Bose–Einstein correlations of π0 pairs from hadronic Z0 decays.

H1 Collaboration, . and Abbiendi, G. and Kartvelishvili, V. , et al. (2003) Bose–Einstein correlations of π0 pairs from hadronic Z0 decays. Physics Letters B, 559 (3-4). pp. 131-143. ISSN 0370-2693

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Abstract

We observe Bose–Einstein correlations in π0 pairs using back-to-back two jet hadronic events from Z0 decays in 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 λ=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 π0s originating from the decays of different hadrons. Prompt pions formed at string break-ups or cluster decays only form a small fraction of the sample.

Item Type: Journal Article
Journal or Publication Title: Physics Letters B
Uncontrolled Keywords: /dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 10556
Deposited By: Users 810 not found.
Deposited On: 17 Jul 2008 13:40
Refereed?: Yes
Published?: Published
Last Modified: 14 Aug 2019 04:01
URI: https://eprints.lancs.ac.uk/id/eprint/10556

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