Approximate particle spectra in the pyramid scheme

Abstract

We construct a minimal model inspired by the general class of pyramid schemes, which is consistent with both supersymmetry breaking and electroweak symmetry breaking. In order to do computations, we make unjustified approximations to the low energy Kähler potential. The phenomenological viability of the resultant mass spectrum is then examined and compared with current collider limits. We show that for certain regimes of parameters, the model, and thus generically the pyramid scheme, can accommodate the current collider mass constraints on physics beyond the standard model with a tree-level light Higgs mass near 125GeV. However, in this regime the model exhibits a little hierarchy problem, and one must permit fine-tunings that are of order 5%. © 2012 American Physical Society.