Large Quark Rotations, Neutrino mixing and Proton Decay

Details Large Quark Rotations, Neutrino mixing and Proton Decay Large Quark Rotations, Neutrino mixing and Proton Decay

2000-04-04

arxiv.org/abs/hep-ph/0004023v2

Nucl.Phys. B584 (2000) 46-68

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex2e file with 3 PS figures, minor corrections,the final version to be published in Nucl. Phys. B

Scientific paper

10.1016/S0550-3213(00)00353-9

Right-handed (RH) rotations do not play a role in the Standard Model, and only the differences of the LH mixing angles are involved in ${\bf V}_{\scr \textrm{CKM}}$. This leads to the huge freedom in the fermionic mass matrices. However, that is no more true in extensions of the Standard Model. For example in GUTs large RH rotations of the quarks can be related to the observed large neutrino mixing or in particular, all mixing angles are relevant for the proton decay. We present a simple realistic non-SUSY SO(10) GUT with large RH and LH mixing and study the corresponding nucleon decay rates.

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