First measurement of the Head-Tail directional nuclear recoil signature at energies relevant to WIMP dark matter searches

S. Burgos, E. Daw, J. Forbes +19

We present first evidence for the so-called Head-Tail asymmetry signature of neutron-induced nuclear recoil tracks at energies down to 1.5 keV/amu using the 1m^3 DRIFT-IIc dark mat…