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 events to “mixed” events constructed with the hadronic part of 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.
|Titolo:||Bose-Einstein correlations in W-pair decays with an event-mixing technique|
|Autori interni:||RAGUSA, FRANCESCO|
|Parole Chiave:||Elementary Particles Physics|
|Settore Scientifico Disciplinare:||Settore FIS/01 - Fisica Sperimentale|
|Data di pubblicazione:||2005|
|Digital Object Identifier (DOI):||10.1016/j.physletb.2004.12.018|
|Appare nelle tipologie:||01 - Articolo su periodico|