SUSY GUTs under Siege : Proton Decay

Details SUSY GUTs under Siege : Proton Decay SUSY GUTs under Siege : Proton Decay

2000-07-19

arxiv.org/abs/hep-ph/0007213v2

Phys.Rev. D63 (2001) 035001

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages

Scientific paper

10.1103/PhysRevD.63.035001

SO(10) supersymmetric grand unified theories [SUSY GUTs] provide a beautiful framework for physics beyond the standard model. Experimental measurements of the three gauge couplings are consistent with unification at a scale $M_G \sim 3 \times 10^{16}$ GeV. In addition predictive models for fermion masses and mixing angles have been found which fit the low energy data, including the recent data for neutrino oscillations. SO(10) boundary conditions can be tested via the spectrum of superparticles. The simplest models also predict neutron and proton decay rates. In this paper we discuss nucleon decay rates and obtain reasonable upper bounds. A clear picture of the allowed SUSY spectra as constrained by nucleon decay is presented.

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