Neutrinos, Lepton Flavor and CP Violation in a Predictive SO(10) Model

Details Neutrinos, Lepton Flavor and CP Violation in a Predictive SO(10) Model Neutrinos, Lepton Flavor and CP Violation in a Predictive SO(10) Model

Jan 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004lbeh.conf..283d&link_type=abstract

THE LAUNCHING OF LA BELLE EPOQUE OF HIGH ENERGY PHYSICS AND COSMOLOGY A Festschrift for Paul Frampton in His 60th Year and Memor

Physics

High Energy Physics

Scientific paper

A minimal supersymmetric SO(10) model with one 10 and one 126 Higgs super-field predict all neutrino mixings as well as the solar mass difference squared in agreement with observations. However, the CKM CP phase is constrained to be in the second or third quadrant requiring a significant non-CKM component to CP violation to explain observations. We revisit this issue using type I and II seesaw formula for neutrino masses show that the addition of a nonrenormalizable term restores compatibility with neutrino data and CKM CP violation in both cases. We further find that the MSSM parameter tan β ≥ 30 in the type I model and lepton flavor violation and lepton electric dipole moments are accessible to proposed experiments in both type I and type II models. We also discuss the unification of the gauge couplings in type I model which requires an intermediate scale.

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