Higgs decays in the low scale type I see-saw model

C. Garcia Cely; A. Ibarra; E. Molinaro; S. T. Petcov

doi:10.1016/j.physletb.2012.11.026

Higgs decays in the low scale type I see-saw model

C. Garcia Cely
, A. Ibarra
, E. Molinaro
, S. T. Petcov

Chair of Theoretische Elementarteilchenphysik

Technical University of Munich
Instituto Superior Técnico
INFN- Sezione di Trieste
University of Tokyo

Research output: Contribution to journal › Article › peer-review

69 Scopus citations

Abstract

The couplings of the low scale type I see-saw model are severely constrained by the requirement of reproducing the correct neutrino mass and mixing parameters, by the non-observation of lepton number and charged lepton flavour violating processes and by electroweak precision data. We show that all these constraints still allow for the possibility of an exotic Higgs decay channel into a light neutrino and a heavy neutrino with a sizable branching ratio. We also estimate the prospects to observe this decay at the LHC and discuss its complementarity to the indirect probes of the low scale type I see-saw model from experiments searching for the μ. →. eγ decay.

Original language	English
Pages (from-to)	957-964
Number of pages	8
Journal	Physics Letters B
Volume	718
Issue number	3
DOIs	https://doi.org/10.1016/j.physletb.2012.11.026
State	Published - 8 Jan 2013

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10.1016/j.physletb.2012.11.026

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title = "Higgs decays in the low scale type I see-saw model",

abstract = "The couplings of the low scale type I see-saw model are severely constrained by the requirement of reproducing the correct neutrino mass and mixing parameters, by the non-observation of lepton number and charged lepton flavour violating processes and by electroweak precision data. We show that all these constraints still allow for the possibility of an exotic Higgs decay channel into a light neutrino and a heavy neutrino with a sizable branching ratio. We also estimate the prospects to observe this decay at the LHC and discuss its complementarity to the indirect probes of the low scale type I see-saw model from experiments searching for the μ. →. eγ decay.",

author = "\{Garcia Cely\}, C. and A. Ibarra and E. Molinaro and Petcov, \{S. T.\}",

note = "Funding Information: This work was supported in part by the INFN program on “Astroparticle Physics”, by the Italian MIUR program on “Neutrinos, Dark Matter and Dark Energy in the Era of LHC” and by the World Premier International Research Center Initiative (WPI Initiative) , MEXT, Japan (S.T.P.), by the DFG cluster of excellence “Origin and Structure of the Universe” and the ERC Advanced Grant project “FLAVOUR” ( 267104 ) (A.I.), by the Graduiertenkolleg Particle Physics at the Energy Frontier of New Phenomena (C.G.C.) and by the Funda{\c c}{\~a}o para a Ci{\^e}ncia e a Tecnologia (FCT, Portugal) through the projects PTDC/FIS/098188/2008 , CERN/FP/116328/2010 and CFTP-FCT Unit 777 , which are partially funded through POCTI (FEDER) (E.M.).",

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doi = "10.1016/j.physletb.2012.11.026",

language = "English",

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journal = "Physics Letters B",

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T1 - Higgs decays in the low scale type I see-saw model

AU - Garcia Cely, C.

AU - Ibarra, A.

AU - Molinaro, E.

AU - Petcov, S. T.

N1 - Funding Information: This work was supported in part by the INFN program on “Astroparticle Physics”, by the Italian MIUR program on “Neutrinos, Dark Matter and Dark Energy in the Era of LHC” and by the World Premier International Research Center Initiative (WPI Initiative) , MEXT, Japan (S.T.P.), by the DFG cluster of excellence “Origin and Structure of the Universe” and the ERC Advanced Grant project “FLAVOUR” ( 267104 ) (A.I.), by the Graduiertenkolleg Particle Physics at the Energy Frontier of New Phenomena (C.G.C.) and by the Fundação para a Ciência e a Tecnologia (FCT, Portugal) through the projects PTDC/FIS/098188/2008 , CERN/FP/116328/2010 and CFTP-FCT Unit 777 , which are partially funded through POCTI (FEDER) (E.M.).

PY - 2013/1/8

Y1 - 2013/1/8

N2 - The couplings of the low scale type I see-saw model are severely constrained by the requirement of reproducing the correct neutrino mass and mixing parameters, by the non-observation of lepton number and charged lepton flavour violating processes and by electroweak precision data. We show that all these constraints still allow for the possibility of an exotic Higgs decay channel into a light neutrino and a heavy neutrino with a sizable branching ratio. We also estimate the prospects to observe this decay at the LHC and discuss its complementarity to the indirect probes of the low scale type I see-saw model from experiments searching for the μ. →. eγ decay.

AB - The couplings of the low scale type I see-saw model are severely constrained by the requirement of reproducing the correct neutrino mass and mixing parameters, by the non-observation of lepton number and charged lepton flavour violating processes and by electroweak precision data. We show that all these constraints still allow for the possibility of an exotic Higgs decay channel into a light neutrino and a heavy neutrino with a sizable branching ratio. We also estimate the prospects to observe this decay at the LHC and discuss its complementarity to the indirect probes of the low scale type I see-saw model from experiments searching for the μ. →. eγ decay.

UR - https://www.scopus.com/pages/publications/84871608841

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VL - 718

SP - 957

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JO - Physics Letters B

JF - Physics Letters B

IS - 3

ER -

Higgs decays in the low scale type I see-saw model

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