Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-03-07
Physics
High Energy Physics
High Energy Physics - Phenomenology
Based on talk presented at ICHEP 2010, Paris, To be published in PoS ICHEP 2010, 4 pages LaTeX
Scientific paper
Tiny neutrino masses can arise naturally via loop diagrams. After a brief review of the radiative mass generation mechanism, I present a new model wherein TeV scale leptoquark scalars induce neutrino masses via two--loop diagrams. This model predicts the neutrino oscillation parameter \sin^2\theta_{13} to be close to the current experimental limit. The leptoquarks are accessible to experiments at the LHC since their masses must lie below 1.5 TeV, and their decay branching ratios probe neutrino oscillation parameters. Rare lepton flavor violating processes mediated by leptoquarks have an interesting pattern: mu --> e gamma may be suppressed, while mu --> 3 e and mu-e conversion in nuclei are within reach of the next generation experiments. Muon g-2 receives new positive contributions, which can resolve the discrepancy between theory and experiment. New CP violating contributions to B_s- \B_s-bar mixing via leptoquark box diagrams are in a range that can explain the recently reported dimuon anomaly by the D0 collaboration.
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