Dark Matter directional detection with MIMAC
Open Access Publications from the University of California

## Dark Matter directional detection with MIMAC

• Author(s): Riffard, Q
• Billard, J
• Bosson, G
• Bourrion, O
• Guillaudin, O
• Lamblin, J
• Mayet, F
• Muraz, J-F
• Richer, J-P
• Santos, D
• Lebreton, L
• Maire, D
• Busto, J
• Brunner, J
• Fouchez, D
• et al.
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 $CF_4$ and $CHF_3$, 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 $\mathrm{^{222}Rn}$ progeny.