Yukawa Textures in Heterotic M-Theory

Details Yukawa Textures in Heterotic M-Theory Yukawa Textures in Heterotic M-Theory

2000-11-20

arxiv.org/abs/hep-th/0011181v1

Physics

High Energy Physics

High Energy Physics - Theory

3 pages, latex, talk at DPF 2000, Columbus, OH, August 9-12, 2000

Scientific paper

We examine the structure of the Yukawa couplings in the 11 dimensional Horava-Witten M-theory based on non-standard embeddings. We find that the CKM and quark mass hierarchies can be explained in M Theory without introducing undue fine tuning. A phenomenological example is presented satisfying all CKM and quark mass data requiring the 5-branes cluster near the second orbifold plane, and that the instanton charges of the physical orbifold plane vanish. The latter condition is explicitly realized on a Calabi-Yau manifold with del Pezzo base dP_7.

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