Magnetic Fluffy Dark Matter

We explore extensions of inelastic Dark Matter and Magnetic inelastic Dark Mat-ter where the WIMP can scatter to a tower of heavier states. We assume a WIMP mass mχ ∼ O(1 − 100) GeV and a constant splitting between successive states δ ∼ O(1 − 100) keV. For the spin-independent scattering scenario we find that the direct experiments CDMS and XENON strongly constrain most of the DAMA/LIBRA pre-ferred parameter space, while for WIMPs that interact with nuclei via their magnetic moment a region of parameter space corresponding to mχ ∼ 11 GeV and δ < 15 keV is allowed by all the present direct detection constraints. ar X i