Quark and lepton masses and mixing in SO(10) with a GUT-scale vector matter

Details Quark and lepton masses and mixing in SO(10) with a GUT-scale vector matter Quark and lepton masses and mixing in SO(10) with a GUT-scale vector matter

2007-10-02

arxiv.org/abs/0710.0581v2

Phys.Rev.D77:055016,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 1 figure, 2 tables; v2: major update, references added

Scientific paper

10.1103/PhysRevD.77.055016

We explore in detail the effective matter fermion mass sum-rules in a class of renormalizable SUSY SO(10) grand unified models where the quark and lepton mass and mixing patterns originate from non-decoupling effects of an extra vector matter multiplet living around the unification scale. If the renormalizable type-II contribution governed by the SU(2)_L-triplet in 54_H dominates the seesaw formula, we obtain an interesting correlation between the maximality of the atmospheric neutrino mixing and the proximity of y_s/y_b to V_cb in the quark sector.

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