MSSM dark matter and a light slepton sector: The Incredible Bulk
  Recent experimental results from the LHC have placed strong constraints on
the masses of QCD-charged superpartners. The MSSM parameter space is also
constrained by the measurement of the Higgs boson mass, and the requirement
that the relic density of lightest neutralinos be consistent with observations.
Although large regions of the MSSM parameter space can be excluded by these
combined bounds, leptophilic versions of the MSSM can survive these
constraints. In this paper we consider a scenario in which the requirements of
minimal flavor violation, vanishing $CP$-violation, and mass universality are
relaxed, specifically focusing on scenarios with light sleptons. We find a
large region of parameter space, analogous to the original bulk region, for
which the lightest neutralino is a thermal relic with an abundance consistent
with that of dark matter. We find that these leptophilic models are constrained
by measurements of the magnetic and electric dipole moments of the electron and
muon, and that these models have interesting signatures at a variety of
indirect detection experiments.
