Bose-Einstein Correlations in Charged Current Muon-Neutrino Interactions in the NOMAD Experiment at CERN

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dc.creatorNOMAD Collaboration
dc.creatorAstier, P.
dc.date2004-04-08
dc.date.accessioned2026-07-07T11:57:50Z
dc.date.available2026-07-07T11:57:50Z
dc.descriptionBose-Einstein Correlations in one and two dimensions have been studied, with high statistics, in charged current muon-neutrino interaction events collected with the NOMAD detector at CERN. In one dimension the Bose-Einstein effect has been analyzed with the Goldhaber and the Kopylov-Podgoretskii phenomenological parametrizations. The Goldhaber parametrization gives the radius of the pion emission region R_G = 1.01+/-0.05(stat)+0.09-0.06(sys) fm and for the chaoticity parameter the value lambda = 0.40+/-0.03(stat)+0.01-0.06(sys). Using the Kopylov-Podgoretskii parametrization yields R_KP = 2.07+/-0.04(stat)+0.01-0.14(sys) fm and lambda_KP = 0.29+/-0.06(stat)+0.01-0.04(sys). Different parametrizations of the long-range correlations have been also studied. The two-dimensional shape of the source has been investigated in the longitudinal co-moving frame. A significant difference between the transverse and the longitudinal dimensions is observed. The high statistics of the collected sample allowed the study of the Bose-Einstein correlations as a function of rapidity, charged particle multiplicity and hadronic energy. A weak dependence of both radius and chaoticity on multiplicity and hadronic energy is found.
dc.description24 pages, 12 figures
dc.identifierhttps://arxiv.org/abs/hep-ex/0404011
dc.identifierhttp://arxiv.org/abs/hep-ex/0404011
dc.identifierNucl.Phys.B686:3-28,2004
dc.identifierdoi:10.1016/j.nuclphysb.2004.03.011
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/206023
dc.subjectHigh Energy Physics - Experiment
dc.titleBose-Einstein Correlations in Charged Current Muon-Neutrino Interactions in the NOMAD Experiment at CERN
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