Speaker
Keith Olive
(University of Minnesota)
Description
The absence of low energy supersymmetry in run I data at the LHC has pushed the nominal scale for supersymmetry beyond a TeV. While this is consistent with the discovery of the Higgs boson at $\approx$ 125 GeV, simple models with scalar and gaugino mass universality are being pushed into corners of parameter space. Non-supersymmetric grand unified theories such as SO(10) may also provide a dark matter candidate due to an exact Z_2 symmetry left unbroken. Because of the presence of an intermediate scale, these theories may unify gauge couplings, provide for neutrino masses and a suitably long lived proton. As in supersymmetric theories, these SO(10) models include radiative electroweak symmetry breaking and a positive quartic Higgs coupling ensuring a stable electroweak vacuum.
Primary author
Keith Olive
(University of Minnesota)
