Direct Detection of Leptophilic Dark Matter in a Model with Radiative
  Neutrino Masses
  We consider an electro-weak scale model for Dark Matter (DM) and radiative
neutrino mass generation. Despite the leptophilic nature of DM with no direct
couplings to quarks and gluons, scattering with nuclei is induced at the 1-loop
level through photon exchange. Effectively, there are charge-charge,
dipole-charge and dipole-dipole interactions. We investigate the parameter
space consistent with constraints from neutrino masses and mixing, charged
lepton-flavour violation, perturbativity, and the thermal production of the
correct DM abundance, and calculate the expected event rate in DM direct
detection experiments. We show that current data from XENON100 start to
constrain certain regions of the allowed parameter space, whereas future data
from XENON1T has the potential to significantly probe the model.
