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Realistic Yukawa Couplings through Instantons in Intersecting Brane Worlds

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arxiv hep-th/0612110 v3 pith:DFGXBGPP submitted 2006-12-12 hep-th

Steven A. Abel , Mark D. Goodsell This is my paper · ORCID
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keywords yukawacouplingsintersectingproblemranktheyadditionbackground
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The Yukawa couplings of the simpler models of D-branes on toroidal orientifolds suffer from the so-called ``rank one'' problem -- there is only a single non-zero mass and no mixing. We consider the one-loop contribution of E2-instantons to Yukawa couplings on intersecting D6-branes, and show that they can solve the rank one problem. In addition they have the potential to provide a geometric explanation for the hierarchies observed in the Yukawa coupling. In order to do this we provide the necessary quantities for instanton calculus in this class of background.

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  1. Three-family supersymmetric Pati-Salam models from intersecting D6-branes on rigid cycles

    hep-th 2025-05 conditional novelty 5.0 of 10

    Ten explicit three-family supersymmetric Pati-Salam models from rigid intersecting D6-branes on factorizable rectangular tori; four of the ten are asymptotically free.

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