0000000001052288

AUTHOR

Tilquin A.

showing 2 related works from this author

Two-particle correlations in pp, (p)over-bar(p)over-bar and (KSKS0)-K-0 pairs from hadronic Z decays

2005

Two-particle correlations in pp, and pairs have been studied in hadronic Z decays recorded at LEP with the ALEPH detector. The correlations were measured as a function of the four-momentum difference Q of the pair. For pp, pairs a depletion of events is observed in the region , and for pairs an enhancement of events is observed in the region . These features are consistent with expectations from Fermi–Dirac and Bose–Einstein statistics, respectively.

INTERFERENCEINTERFEROMETRYZ(0) DECAYSBOSE-EINSTEIN CORRELATIONSLEPANNIHILATIONALEPHDETECTORMESONSMULTIPLE PRODUCTION
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Bose-Einstein correlations in W-pair decays with an event-mixing technique

2005

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→qq̄qq̄ events to "mixed" events constructed with the hadronic part of WW→qq̄ℓν 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.

INTERFEROMETRYPHYSICSCOLLISIONSE+E-ANNIHILATIONSE(+)E(-)2-DIMENSIONAL ANALYSISHADRONSLEPZ(0)PEAK
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