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Higgs lepton flavour violation: UV completions and connection to neutrino masses

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Higgs lepton flavour violation: UV completions and connection to neutrino masses

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dc.contributor.author Herrero García, Juan Andrés
dc.contributor.author Rius Dionis, Nuria
dc.contributor.author Santamaria, Arcadi
dc.date.accessioned 2017-06-06T13:40:00Z
dc.date.available 2017-06-06T13:40:00Z
dc.date.issued 2016
dc.identifier.citation Herrero García, Juan Andrés; Rius Dionis, Nuria; Santamaria, Arcadi (2016) Higgs lepton flavour violation: UV completions and connection to neutrino masses The Journal of high energy physics 11 11 084 - 1 084 - 45
dc.identifier.uri http://hdl.handle.net/10550/58981
dc.description.abstract We study lepton violating Higgs (HLFV) decays, first from the effective field theory (EFT) point of view, and then analysing the different high-energy realizations of the operators of the EFT, highlighting the most promising models. We argue why two Higgs doublet models can have a BR(h → τ μ) ∼ 0.01, and why this rate is suppressed in all other realizations including vector-like leptons. We further discuss HLFV in the context of neutrino mass models: in most cases it is generated at one loop giving always BR(h → τ μ) < 10−4 and typically much less, which is beyond experimental reach. However, both the Zee model and extended left-right symmetric models contain extra SU(2) doublets coupled to leptons and could in principle account for the observed excess, with interesting connections between HLFV and neutrino parameters.
dc.language.iso eng
dc.relation.ispartof The Journal of high energy physics, 2016, vol. 11, num. 11, p. 084 - 1-084 - 45
dc.subject Partícules (Física nuclear)
dc.subject Energia
dc.title Higgs lepton flavour violation: UV completions and connection to neutrino masses
dc.type journal article es_ES
dc.date.updated 2017-06-06T13:40:00Z
dc.identifier.doi 10.1007/JHEP11(2016)084
dc.identifier.idgrec 115332
dc.rights.accessRights open access es_ES

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