Testing a Neutrino Mass Generation Mechanism at the Large Hadron Collider

Abstract

The Large Hadron Collider could be a discovery machine for the neutrino mass pattern and its Majorana nature in the context of a well-motivated TeV scale Type II seesaw model. This is achieved by identifying the flavor structure of the lepton number violating decays of the charged Higgs bosons. The observation of either H^+ --> tau^+ nubar or H^+ --> e^+ nubar will be particularly robust to determine the neutrino spectra since they are independent of the unknown Majorana phases, which could be probed via the H^{++} --> e^+_i e^+_j decays. In a less favorable scenario when the leptonic channels are suppressed, one needs to observe the decays H^+ --> W^+ H_1, and H^+ --> t bbar to confirm the triplet-doublet mixing that implies the Type II relation. The associated production H^{++} H^{-} is crucial in order to test the triplet nature of the Higgs field.

5 pages, 4 figures, published in PRD Rapid Communication

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• Neutrino Masses and the LHC: Testing Type II Seesaw
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• Renormalizable Adjoint SU(5)
• Direct determination of neutrino mass parameters at future colliders
• Search for Doubly-Charged Higgs Bosons Decaying to Dileptons in ppbar Collisions at sqrt(s)=1.96 TeV
• Search for Doubly-charged Higgs Boson Pair Production in the Decay to mu+mu+mu-mu- in p pbar Collisions at s**1/2=1.96 TeV

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• New Mechanism for Neutrino Mass Generation and Triply Charged Higgs Bosons at the LHC
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• Minimal Matter at the Large Hadron Collider
• LHC phenomenology of a two-Higgs-doublet neutrino mass model
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• Neutrino Masses and Heavy Triplet Leptons at the LHC: Testability of Type III Seesaw
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• Phenomenological constraints on minimally coupled exotic lepton triplets
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• Revealing the origin of neutrino masses through the Type II Seesaw mechanism at high-energy muon colliders
• $\Delta \left(27\right)$ flavor singlet-triplet Higgs model for fermion masses and mixings
• Probing Radiative Neutrino Mass Models Using Trilepton Channel at the LHC
• Testing the Scalar Triplet Solution to CDF's Fat $W$ Problem at the LHC
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• Lepton-number-violating decays of singly-charged Higgs bosons in the minimal type-(I+II) seesaw model at the TeV scale
• Identifying the nature of dark matter at $e^{-}{e}^{+}$ Colliders
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• Neutrino physics beyond neutrino masses
• Probing Seesaw in an Adjoint SUSY SU(5) Model at LHC
• Natural and Dynamical Neutrino Mass Mechanism at the LHC
• Multi-charged TeV scale scalars and fermions in the framework of a radiative seesaw model