Yukawa Textures in Horava-Witten M-Theory

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dc.creatorArnowitt, R.
dc.creatorDutta, B.
dc.date2000-06-21
dc.date.accessioned2026-07-07T11:47:56Z
dc.date.available2026-07-07T11:47:56Z
dc.descriptionRecent advances in 11 dimensional Horava-Witten M-theory based on non-standard embeddings with torus fibered Calabi-Yau manifolds have allowed the construction of three generation models with Wilson line breaking to the Standard Model gauge symmetry. Central to these constructions is the existence of a set of 5-branes in the bulk. We examine within this framework the general structure of the matter Yukawa couplings and show that M-theory offers an alternate possible way of achieving the CKM and quark mass hierarchies without introducing undue fine tuning or (as in conventional analysis) small parameters raised to high powers. A phenomenological example is presented in accord with all CKM and quark mass data requiring mainly that the 5-branes cluster near the second orbifold plane, and that the instanton charges of the physical orbifold plane vanish. An explicit example of a three generation model with vanishing physical plane instanton charges based on a torus fibered Calabi-Yau three fold with a del Pezzo base $dP_7$ and Wilson line breaking is constructed.
dc.description28 pages, Revtex
dc.identifierhttps://arxiv.org/abs/hep-th/0006172
dc.identifierhttp://arxiv.org/abs/hep-th/0006172
dc.identifierNucl.Phys.B592:143-163,2001
dc.identifierdoi:10.1016/S0550-3213(00)00608-8
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/202748
dc.subjectHigh Energy Physics - Theory
dc.subjectHigh Energy Physics - Phenomenology
dc.titleYukawa Textures in Horava-Witten M-Theory
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