DOI 10.1007/s100529800856
Bose-Einstein and colour interference in W-pair decays
J. Häkkinen - M. Ringnér
Department of Theoretical Physics, Lund University,
Sölvegatan 14A, S-223 62 Lund, Sweden
(e-mail: jari@thep.lu.se, markus@thep.lu.se)
Received: 3 November 1997 / Published online: 10 March 1998
Abstract
We study effects on the W mass
measurements at LEP2 from non-perturbative interference effects in the
fully hadronic decay channel. Based on a model for Bose-Einstein
interference, which is in agreement with LEP1 data, we argue that
there are no Bose-Einstein correlations between bosons coming from the
different W's. For small reconnection probabilities we rule out the
possible experimental signal of colour interference at LEP2, suggested
in [r:gg94]. The conclusions from this paper are that the
theoretical uncertainties in the W mass determination should be
smaller than the experimental statistical error.
Copyright Springer-Verlag
