2009/12/29 by Goran Senjanovic · 1 citation
Physics and Astronomy · #hep-ph
paper · pdf · doi:10.1063/1.3327552
published as AIP Conf.Proc.1200:131-141,2010 · Based on the plenary talks at the SUSY09 and PASCOS09 conferences
arxiv created 2009/12/29 · arxiv updated 2010/04/22
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 MW and MGUT.