Cosmological information from wimp experiments

Abstract

We discuss the information that can be obtained from direct and indirect detection experiments of wimp dark matter. While individual experiments yield little information about wimp cross sections or galactic abundances, we consider the possibility that data from direct and indirect experiments can be combined to give a measurement of the low-energy wimp annihilation cross section. This turns out to be possible if the wimp annihilation rate in the Earth is not balanced by the capture rate. The derived low-energy annihilation cross section can be used to constrain the cosmological density of wimps.