SU(5)× SU(5) Unification, Seesaw Mechanism and R-Conservation
Abstract
A new supersymmetric grand unified model based on the gauge group SU(5)× SU(5) is discussed. The model has the feature that the conventional seesaw mechanism for neutrino masses is implemented using the (15, 1)+(1,15) representation. This multiplet may have a better chance of arising from level two compactification of superstring theories than the the bf 126 representation used in the SO(10) model. The model also naturally suppresses all R-parity violating interactions.
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