Testing a Neutrino Mass Generation Mechanism at the Large Hadron Collider

Details Testing a Neutrino Mass Generation Mechanism at the Large Hadron Collider Testing a Neutrino Mass Generation Mechanism at the Large Hadron Collider

2008-03-24

arxiv.org/abs/0803.3450v2

Phys.Rev.D78:071301,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 4 figures, published in PRD Rapid Communication

Scientific paper

10.1103/PhysRevD.78.071301

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.

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