Title of article
Bose-Einstein correlations in W-pair decays
Author/Authors
ALEPH Collaboration، نويسنده , , R. Barate، نويسنده , , D. Decamp، نويسنده , , P. Ghez، نويسنده , , C. Goy، نويسنده , , S. Jezequel، نويسنده , , J.-P. Lees، نويسنده , , F. Martin، نويسنده , , E. Merle، نويسنده , , M.-N. Minard، نويسنده , , B. Pietrzyk، نويسنده , , R. Alemany، نويسنده , , S. Bravo، نويسنده , , M.P. Casado، نويسنده , , M. Chmeissani، نويسنده , , J.M. Crespo، نويسنده , , E. Fernandez، نويسنده , , M. Fernandez-Bosman، نويسنده , , Ll. Garrido، نويسنده , , E. Graugès، نويسنده , , et al.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2000
Pages
15
From page
50
To page
64
Abstract
Bose-Einstein correlations are studied in semileptonic (WW→qq̄ℓν) and fully hadronic (WW→qq̄qq̄) W-pair decays with the ALEPH detector at LEP at centre-of-mass energies of 172, 183 and 189 GeV. They are compared with those made at the Z peak after correction for the different flavour compositions. A Monte Carlo model of Bose-Einstein correlations based on the JETSET hadronization scheme was tuned to the Z data and reproduces the correlations in the WW→qq̄ℓν events. The same Monte Carlo reproduces the correlations in the WW→qq̄qq̄ channel assuming independent fragmentation of the two Wʹs. A variant of this model with Bose-Einstein correlations between decay products of different Wʹs is disfavoured.
Journal title
PHYSICS LETTERS B
Serial Year
2000
Journal title
PHYSICS LETTERS B
Record number
912698
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