Features of fast neutrons in dark matter searches

► Recoil energy due to elastic neutron scattering can be similar to that expected for WIMPs. ► In the simple black disc model elastic neutron scattering can be described in terms of a single dimensionless variable. ► The pattern of A behavior is different for WIMPs and neutrons. ► For neutrons but not for WIMPs inelastic reactions on nuclei are expected.