11 papers · 1 filter
Neutrino masses in SU(5) grand unified model
Noriyuki Oshimo
A grand unified model based on SU(5) and supersymmetryis presented to account for the masses and mixing of the neutrinos observed in experiments.
Masses and mixing of neutrinos in grand unified SO(10) model
Noriyuki Oshimo
A grand unified model based on SO(10) and supersymmetry is presented to account for the masses and mixing of the neutrinos observed in experiments.
Neutron Electric Dipole Moment and Extension of the Standard Model
Noriyuki Oshimo
A nonvanishing value for the electric dipole moment (EDM) of the neutron is a prominent signature for CP violation. The EDM induced by the Kobayashi-Maskawa mechanism of the standa…
Contributions of Vector-Like Quarks to and Mixing
Mayumi Aoki, Makiko Nagashima, Noriyuki Oshimo
The radiative decay $\BSgamma$ and the mixing $\BsBs$ are discussed in the vector-like quark model which contains extra SU(2)-singlet quarks with the same electric charges as the u…
New supersymmetric standard model with stable proton
Mayumi Aoki, Noriyuki Oshimo
We discuss a supersymmetric extension of the standard model with an extra U(1) gauge symmetry. In this model, the proton stability is guaranteed by the gauge symmetry without invok…
Baryon asymmetry and neutron EDM
Mayumi Aoki, Noriyuki Oshimo, Akio Sugamoto
Baryon asymmetry of the universe can be generated by new sources of violation intrinsic in supersymmetric extension of the standard model. This scenario predicts the neutron e…