Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-12-29
AIP Conf.Proc.1200:131-141,2010
Physics
High Energy Physics
High Energy Physics - Phenomenology
Based on the plenary talks at the SUSY09 and PASCOS09 conferences
Scientific paper
10.1063/1.3327552
I review the theoretical and experimental status of proton decay theory and experiment. Regarding theory, I focus mostly, but not only, on grand unification. I discuss only the minimal, well established SU(5) and SO(10) models, both ordinary and supersymmetric. I show how the minimal realistic extensions of the original Georgi - Glashow model can lead to interesting LHC physics, and I demonstrate that the minimal supersymmetric SU(5) theory is in perfect accord with experiment. Since no universally accepted model has of yet emerged, I discuss the effective operator analysis of proton decay and some related predictions from a high scale underlying theory. A strong case is made for the improvement of experimental limits, or better the search of, two body neutron decay modes into charged kaons and charged leptons. Their discovery would necessarily imply a low energy physics since they practically vanish in any theory with a desert in energies between M_W and M_GUT.
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