and $v$ is the WIMP velocity, with corrections depending on the precise target material and the properties of the detector [@LewinSmith]. Assuming the standard velocity distribution in smooth halo models, with approximately 10% uncertainty, an experiment with a Xenon or Germanium target that detects 100 signal events for a WIMP of mass $m_X = 100$ GeV can expect to measure the mass of this particle at the 20% level, thus potentially confirming the cosmological stability (and abundance) of a WIMP detected at the LHC.

If the WIMP mass inferred in a direct detection experiment was not consistent with that measured at the LHC, this could imply that different particle species are being observed, or could be the result of a nonstandard dark matter velocity distribution. In the future, directional dark matter detectors may help to clear up such a scenario.

INDIRECT DETECTION
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In parallel to direct detection experiments, a wide range of indirect detection programs have been developed to search for the annihilation products of dark matter particles. In particular, searches are underway to detect neutrinos from dark matter annihilations in the core of the Sun, antimatter particles from dark matter annihilations in the galactic halo, and photons from 