Realistic construction of split fermion models

Details Realistic construction of split fermion models Realistic construction of split fermion models

2002-10-03

arxiv.org/abs/hep-ph/0210053v3

Phys.Rev. D67 (2003) 015011

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, 5 figures, typos corrected, discussion on the implications of SM rare decay processes added, to appear in PRD

Scientific paper

10.1103/PhysRevD.67.015011

The Standard Model flavor structure can be explained in theories where the fermions are localized on different points in a compact extra dimension. We show that models with two bulk scalars compactified on an orbifold can produce such separations in a natural way. We study the shapes and overlaps of the fermion wave functions. We show that, generically, realistic models of Gaussian overlaps are unnatural since they require very large Yukawa couplings between the fermions and the bulk scalars. We give an example of a five dimensional two scalar model that accounts naturally for the observed quark masses, mixing angles and CP violation.

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