6 papers
Mass Matrices in E6 Unification
M. Bando, T. Kugo, K. Yoshioka
We study a supersymmetric E6 grand unified model in which the SU(5) 5^* components are twisted in the third generation 27. Supplementing the adjoint Higgs field to a model analyzed…
Brane fluctuations and suppression of Kaluza-Klein mode couplings
M. Bando, T. Kugo, T. Noguchi +1
In higher dimensional models where the gauge and gravity fields live in the bulk and the matter fields only in a brane, we point out the importance of the brane (transverse) coordi…
Quark and Lepton Mass Matrix in an Asymptotically Non-Free Theory
M. Bando, J. Sato, K. Yoshioka
We analyze fermion mass-matrix structure in an asymptotically non-free model with 4 + 1bar generations. The texture at the GUT scale is uniquely determined by supposing that the ma…
Neutrino Mass Texture with Large Mixing
M. Bando, T. Kugo, K. Yoshioka
We propose a simple texture for the right-handed Majorana mass matrix to give a large mixing angle and hierarchical left-handed neutrino mass pattern. Consistently with t…
Possible Candidates for SUSY SO(10) Model with an Intermediate Scale
Masako Bando, Joe Sato, Tomohiko Takahashi
We study the possibility of an intermediate scale existing in supersymmetric SO(10) grand unified theories: The intermediate scale is demanded to be around 10^{12} GeV so that neut…
Hierarchical Mass Matrices in a Minimal SO(10) Grand Unification I
Masako Bando, K. -I. Izawa, Tomohiko Takahashi
We consider a minimal SO(10) unified model with horizontal Peccei-Quinn symmetry. The hierarchical structure of quark-lepton mass matrices is naturally implemented by the remnants…