Leptonic $Z$ decays in the littlest $Higgs$ model with T-parity

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dc.creatorYue, Chong-Xing
dc.creatorLiu, Jin-Yan
dc.creatorZhu, Shi-Hai
dc.date2008-11-05
dc.date2008-11-13
dc.date.accessioned2026-07-07T12:39:13Z
dc.date.available2026-07-07T12:39:13Z
dc.descriptionThe littlest $Higgs$ model with T-parity (called the $LHT$ model) predicts the existence of the T-odd leptons, which can generate contributions to some leptonic processes at the one-loop level. We calculate their contributions to the leptonic $Z$ decay processes $Z\to l\bar{l'}$, $Z\to l\bar{l}$, and $Z\rightarro ν\barν$. We find that the T-odd leptons can give significant contributions to the branching ratios of these decay processes in most of the parameter space. The experimental measurement values might generate constraints on the free parameters of the $LHT$ model.
dc.description16 pages, 8 figures, minor corrections; final version published in Phys.Rev.D
dc.identifierhttps://arxiv.org/abs/0811.0708
dc.identifierhttp://arxiv.org/abs/0811.0708
dc.identifierPhys.Rev.D78:095006,2008
dc.identifierdoi:10.1103/PhysRevD.78.095006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/219032
dc.subjectHigh Energy Physics - Phenomenology
dc.titleLeptonic $Z$ decays in the littlest $Higgs$ model with T-parity
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