期刊
PHYSICS LETTERS B
卷 693, 期 5, 页码 580-583出版社
ELSEVIER
DOI: 10.1016/j.physletb.2010.09.015
关键词
Proton decay; Grand Unified Theory; Vector-like particles
资金
- DOE [DE-FG03-95-Er-40917]
- Natural Science Foundation of China [10821504]
- Mitchell-Heep Chair in High Energy Physics
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 -> 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. (C) 2010 Elsevier B.V. All rights reserved.
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