Instanton induced charged fermion and neutrino masses in a minimal Standard Model scenario from intersecting D-branes - High Energy Physics - PhenomenologyReport as inadecuate




Instanton induced charged fermion and neutrino masses in a minimal Standard Model scenario from intersecting D-branes - High Energy Physics - Phenomenology - Download this document for free, or read online. Document in PDF available to download.

Abstract: String instanton Yukawa corrections from Euclidean D-branes are investigatedin an effective Standard Model theory obtained from the minimal U3xU2xU1D-brane configuration. In the case of the minimal chiral and Higgs spectrum, itis found that superpotential contributions are induced by string instantons forthe perturbatively forbidden entries of the up and down quark mass matrices.Analogous non-perturbative effects generate heavy Majorana neutrino masses anda Dirac neutrino texture with factorizable Yukawa couplings. For this lattercase, a specific example is worked out where it is shown how this texture canreconcile the neutrino data.



Author: G. K. Leontaris

Source: https://arxiv.org/



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