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Orbifold GUT model with nine Higgs doublets
Biswajoy Brahmachari
We describe a non-supersymmetric orbifold GUT based on SU(5) symmetry. It is a modification of Kawamura's 5-D orbifold GUT model. The difference lies in the choice of Higgs scalars…
A 3 X 2 texture for neutrino oscillations and leptogenesis
Biswajoy Brahmachari, Nobuchika Okada
In an economical system with only two heavy right handed neutrinos, we postulate a new texture for Dirac mass matrix . This model implies one massless light neutr…
Single and double seesaw for quark-lepton and neutrino masses
Biswajoy Brahmachari
A left-right model of quarks and leptons based on the gauge group is studied. Here the scalar sector consists of only two…
E_6 multiplets and unification in extra dimensions
Biswajoy Brahmachari
We study the effect of all matter multiplets contained in {\bf 27} representation of GUT on gauge coupling unification in extra dimensions. Extra members of {\bf 27} multiple…
Lattice simulation of the strange quark mass and Fritzsch texture
Biswajoy Brahmachari
We discuss how predictions of Fritzsch textures can be consistent with values of fermion masses and mixing angles if we embed them in a supersymmetric grand unified theory.
Supersymmetric left-right model and scalar potential
Biswajoy Brahmachari
We construct a scalar potential of supersymmetric left-right model in the limit when supersymmetry is valid.