NuTeV anomaly, lepton universality, and nonuniversal neutrino-gauge couplings

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dc.contributorVirginia Techen
dc.contributor.authorLoinaz, Williamen
dc.contributor.authorOkamura, Naotoshien
dc.contributor.authorRayyan, S.en
dc.contributor.authorTakeuchi, Tatsuen
dc.contributor.authorWijewardhana, L. C. R.en
dc.contributor.departmentInstitute for Particle, Nuclear and Astronomical Sciences (IPNAS)en
dc.contributor.departmentPhysicsen
dc.date.accessed2013-12-16en
dc.date.accessioned2013-12-18T19:46:40Zen
dc.date.available2013-12-18T19:46:40Zen
dc.date.issued2004-12en
dc.description.abstractIn 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-->egamma.en
dc.identifier.citationLoinaz, W ; Okamura, N ; Rayyan, S ; et al., DEC 2004. “NuTeV anomaly, lepton universality, and nonuniversal neutrino-gauge couplings,” PHYSICAL REVIEW D 70(11): 113004. DOI: 10.1103/PhysRevD.70.113004en
dc.identifier.doihttps://doi.org/10.1103/PhysRevD.70.113004en
dc.identifier.issn1550-7998en
dc.identifier.urihttp://hdl.handle.net/10919/24755en
dc.identifier.urlhttp://link.aps.org/doi/10.1103/PhysRevD.70.113004en
dc.language.isoen_USen
dc.publisherAmerican Physical Societyen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectfermion pair productionen
dc.subjectradiative-correctionsen
dc.subjectmuon-electronen
dc.subjecttau-decaysen
dc.subjectantimuonium conversionen
dc.subjectbranching fractionsen
dc.subjectparticleen
dc.subjectphysicsen
dc.subjectqed correctionsen
dc.subjectstandard modelen
dc.subjectgeneral-theoryen
dc.subjectAstronomy & Astrophysicsen
dc.subjectPhysicsen
dc.titleNuTeV anomaly, lepton universality, and nonuniversal neutrino-gauge couplingsen
dc.title.serialPhysical Review Den
dc.typeArticle - Refereeden

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