Bose-Einstein correlations in W-pair decays

ALEPH Collaboration

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

Bose-Einstein correlations are studied in semileptonic (WW → qq ℓ ν) and fully hadronic (WW → qqqq). 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 → qq ℓ ν events. The same Monte Carlo reproduces the correlations in the WW → qqqq channel assuming independent fragmentation of the two W's. A variant of this model with Bose-Einstein correlations between decay products of different W's is disfavoured.

Original languageEnglish (US)
Pages (from-to)50-64
Number of pages15
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume478
Issue number1-3
DOIs
StatePublished - Apr 6 2000

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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