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Bose-Einstein correlations in W-pair decays with an event-mixing technique (2004)

Abstract
Bose-Einstein correlations in W-pair decays are studied using data collected by the ALEPH detector at LEP at e+e- centre-of-mass energies from 183 to 209 GeV. The analysis is based on the comparison of WW-->qqqq events to ``mixed'' events constructed with the hadronic part of WW-->qqlnu events. The data are in agreement with the hypothesis that Bose-Einstein correlations are present only for pions from the same W decay. The JETSET model with Bose-Einstein correlations between pions from different W bosons is disfavoured.

Publication details
Download http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=cern&id=phep-2004-053
http://cdsweb.cern.ch/record/800414/files/phep-2004-053.pdf
http://cdsweb.cern.ch/record/800414/files/phep-2004-053.ps.gz
Repository CERN Document Server (Switzerland)
Keywords Particle Physics - Experimental Results
Language eng