  We explore model-independent collider constraints on light Majorana dark
matter particles. We find that colliders provide a complementary probe of WIMPs
to direct detection, and give the strongest current constraints on light DM
particles. Collider experiments can access interactions not probed by direct
detection searches, and outperform direct detection experiments by about an
order of magnitude for certain operators in a large part of parameter space.
For operators which are suppresssed at low momentum transfer, collider searches
have already placed constraints on such operators limiting their use as an
explanation for DAMA.
