Neutrino properties in E6×SU(2)F SUSY GUT with spontaneous CP violation.

We examined the neutrino sector in E6×SU(2)F SUSY GUT with spontaneous CP violation. At a first glance, the discrete symmetry, which is introduced in order to solve the SUSY CP problem, constrains the allowed operators too strongly for the neutrino sector to be consistent with the experimental data, i.e., the μ neutrino becomes massless as commented in the previous work. We showed that this issue can be solved if some operators are taken into account. The predictions on the neutrino masses and mixings are the same as the E6 models, which are consistent with various experiments on the neutrino oscillations. [ABSTRACT FROM AUTHOR]