Fermion Masses, Mixings and Proton Decay in a Randall-Sundrum Model

By S. Huber, Q. Shafi. 2000

412 citations recorded by the source corpus.

We consider a Randall–Sundrum model in which the Standard Model fermions and gauge bosons correspond to bulk fields. We show how the observed charged fermion masses and CKM mixings can be explained, without introducing hierarchical Yukawa couplings. We then study the impact on the mass scales associated with non-renormalizable operators responsible for proton decay, neutrino masses, and flavor changing neutral currents. Although mass scales as high as 1011–1012 GeV are in principle possible, dimensionless couplings of order 10−8 are still needed to adequately suppress proton decay. Large neutrino mixings seem to require new physics beyond the Standard Model.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/6ac611938500bd17e111dc9a33bf49bc5a059672

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Citations in the corpus

• Proton stability in grand unified theories, in strings and in branes (2006, background): “This procedure leads naturally to a hierarchy of the Yukawas couplings if different generations of standard model fermions are located at different points in the bulk [286, 287, 288, 289].”