Dark Matter directional detection with MIMAC

Abstract

Directional detection is a promising direct Dark Matter (DM) search strategy. The angular distribution of the nuclear recoil tracks from WIMP events should present an anisotropy in galactic coordinates. This strategy requires both a measurement of the recoil energy with a threshold of about 5 keV and 3D recoil tracks down to few millimeters. The MIMAC project, based on a \textmu-TPC matrix, with $C{F}_4$ and $CH{F}_3$, is being developed. In June 2012, a bi-chamber prototype was installed at the LSM (Laboratoire Souterrain de Modane). A preliminary analysis of the first four months data taking allowed, for the first time, the observation of recoils from the ${}^{222}\mathrm{Rn}$ progeny.

Proceedings of the 48th Rencontres de Moriond: Very High Energy Phenomena in the Universe, 9-16 March 2013, La Thuile, Italy