Proton Decay due to bulk SU(5) gauge bosons in the Randall-Sundrum Scenario
Shrihari Gopalakrishna
Abstract
We calculate the proton decay rate due to five dimensional SU(5) gauge bosons in the Randall-Sundrum scenario with two branes (Planck brane and TeV brane). We consider matter in the usual 10 and 5 SU(5) representations localized on a brane, and consider the case when SU(5) is broken by a Higgs mechanism on the matter brane. We calculate the proton decay rate mediated by X bosons, due to terms in the Lagrangian with X and its derivative along the extra dimension. We confirm that the experimental limit on the proton decay rate allows SU(5) matter to be on the Planck brane, but excludes it from being on the TeV brane in this scenario.
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