7 papers · 1 filter
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…
Decay Rate Asymmetry of the Top Quark through Light Squarks
Mayumi Aoki
A decay rate asymmetry of the top quark is discussed within the framework of the supersymmetric standard model. Although new sources of CP violation in this model are severely cons…
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…
Electroweak Baryogenesis and Neutron Electric Dipole Moment from Supersymmetry
Mayumi Aoki, Noriyuki Oshimo, Akio Sugamoto
Baryogenesis at the electroweak phase transition is discussed within the framework of the supersymmetric standard model. Implications of baryon asymmetry for the electric dipole mo…
Baryogenesis from top squark transport
Mayumi Aoki, Noriyuki Oshimo
Baryon asymmetry of the universe is generated in the supersymmetric standard model (SSM) through the charge transport mechanism mediated by top squarks. Necessary CP violation orig…