Effects of new leptons in Electroweak Precision Data

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dc.creatordel Aguila, F.
dc.creatorde Blas, J.
dc.creatorPerez-Victoria, M.
dc.date2008-03-28
dc.date2008-04-11
dc.date.accessioned2026-07-07T11:49:24Z
dc.date.available2026-07-07T11:49:24Z
dc.descriptionWe obtain limits on generic vector-like leptons at the TeV scale from electroweak precision tests. These limits are complementary to the ones obtained from lepton flavour violating processes. In general, the quality of the global electroweak fit is comparable to the one for the Standard Model. In the case of an extra neutrino singlet mixing with the muon or electron, the global fit allows for a relatively large Higgs mass (M_H < 260 GeV at 90 % C.L.), thus relaxing the tension between the direct LEP limit and the Standard Model fit.
dc.description33 pages, 24 figures; updated with new m_t value, with minor changes. Extra references
dc.identifierhttps://arxiv.org/abs/0803.4008
dc.identifierhttp://arxiv.org/abs/0803.4008
dc.identifierPhys.Rev.D78:013010,2008
dc.identifierdoi:10.1103/PhysRevD.78.013010
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/203220
dc.subjectHigh Energy Physics - Phenomenology
dc.titleEffects of new leptons in Electroweak Precision Data
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