Abstract
Motivated by results from the LHC and dark matter searches, we study the possibility of phenomenologically viable R-parity violation in SU(5) GUT models from a top-down point of view. We show that in contrast to the more model dependent bounds on the proton lifetime, the limits on neutrino masses provide a robust, stringent and complementary constraint on all SU(5) GUT-based R-parity violating models. Focusing on wellmotivated string/M theory GUT frameworks with mechanisms for doublet-triplet splitting and a solution to the μ/Bμ problems, we show that imposing the neutrino mass bounds implies that R-parity violation is disfavored. The arguments can also be generalized to minimal SO(10) GUTs. An experimental observation of R-parity violation would, therefore, disfavor such classes of top-down GUT models.
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Acharya, B.S., Kane, G.L., Kumar, P. et al. R-parity conservation from a top down perspective. J. High Energ. Phys. 2014, 1 (2014). https://doi.org/10.1007/JHEP10(2014)001
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DOI: https://doi.org/10.1007/JHEP10(2014)001