Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2000-08-30
Int.J.Mod.Phys.A16S1C:940-942,2001
Physics
High Energy Physics
High Energy Physics - Theory
3 pages, latex, talk at ICHEP 2000, Osaka, Japan, July 27-Aug. 2, 2000
Scientific paper
The general structure of the matter Kahler metric in the $\kappa^{2/3}$ expansion of Horava-Witten M-theory with nonstandard embeddings is examined. It is shown that phenomenological models based on this structure can lead to Yukawa and V$_{\rm CKM}$ hierarchies (consistent with all data) without introducing ad hoc small parameters if the 5-branes lie near the distant orbifold plane and the instanton charges of the physical plane vanish. M-theory thus offers an alternate way of describing these hierarchies, different from the conventional models of Yukawa textures.
Arnowitt Richard
Dutta Bhaskar
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