Fast Proton Decay

Details Fast Proton Decay Fast Proton Decay

2009-10-05

arxiv.org/abs/0910.0860v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

RevTex4, 5 pages, 3 figures, 1 table, comments added, version to appear in PLB

Scientific paper

We consider proton decay in the testable flipped SU(5) X U(1)_X models with TeV-scale vector-like particles which can be realized in free fermionic string constructions and F-theory model building. We significantly improve upon the determination of light threshold effects from prior studies, and perform a fresh calculation of the second loop for the process p \to e^+ \pi^0 from the heavy gauge boson exchange. The cumulative result is comparatively fast proton decay, with a majority of the most plausible parameter space within reach of the future Hyper-Kamiokande and DUSEL experiments. Because the TeV-scale vector-like particles can be produced at the LHC, we predict a strong correlation between the most exciting particle physics experiments of the coming decade.

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