Fermion masses, mixings and proton decay in a Randall-Sundrum model

Huber, Stephan J and Shafi, Qaisar (2001) Fermion masses, mixings and proton decay in a Randall-Sundrum model. Physics Letters B, 498 (3-4). pp. 256-262. ISSN 0370-2693

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Abstract

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 10(11)-10(12) 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.

Item Type: Article
Additional Information: The conceptual parts were equally provided by Shafi and myself, the numerics was done by myself. We investigated the standard model in warped geometry, demonstrating how the fermion mass pattern and suppression of rare processes can be achieved solely by fermion locations. It has accrued over 100 citations.
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Depositing User: Stephan Huber
Date Deposited: 06 Feb 2012 21:22
Last Modified: 03 Apr 2012 13:59
URI: http://sro.sussex.ac.uk/id/eprint/30973
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