The NuTeV Anomaly, Lepton Universality, and Non-Universal Neutrino-Gauge Couplings

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dc.creatorLoinaz, Will
dc.creatorOkamura, Naotoshi
dc.creatorRayyan, Saifuddin
dc.creatorTakeuchi, Tatsu
dc.creatorWijewardhana, L. C. R.
dc.date2004-03-31
dc.date2004-07-01
dc.date.accessioned2026-07-07T03:52:18Z
dc.date.available2026-07-07T03:52:18Z
dc.descriptionIn previous studies we found that models with flavor-universal suppression of the neutrino-gauge couplings are compatible with NuTeV and Z-pole data. In this paper we expand our analysis to obtain constraints on flavor-dependent coupling suppression by including lepton universality data from W, tau, pi and K decays in fits to model parameters. We find that the data are consistent with a variety of patterns of coupling suppression. In particular, in scenarios in which the suppression arises from the mixing of light neutrinos with heavy gauge singlet states (neutrissimos), we find patterns of flavor-dependent coupling suppression which are also consistent with constraints from mu -> e gamma.
dc.descriptionREVTeX4, 25 pages, 10 postscript figures. Updated fits using the new top mass. Updated figures. Extended discussion on the status of the determination of B(tau->pi nu)
dc.identifierhttps://arxiv.org/abs/hep-ph/0403306
dc.identifierhttp://arxiv.org/abs/hep-ph/0403306
dc.identifierPhys.Rev. D70 (2004) 113004
dc.identifierdoi:10.1103/PhysRevD.70.113004
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/43414
dc.subjectHigh Energy Physics - Phenomenology
dc.titleThe NuTeV Anomaly, Lepton Universality, and Non-Universal Neutrino-Gauge Couplings
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