Dark matter directional detection with MIMAC
C. Grignon (1), J. Billard (1), G. Bosson (1), O. Bourrion (1), O., Guillaudin (1), C. Koumeir (1), F. Mayet (1), D. Santos (1), P. Colas (2), E., Ferrer (2), I. Giomataris (2) ((1) LPSC Grenoble, (2) CEA Saclay)
TL;DR
The paper presents the MIMAC project, a gaseous detector array designed for directional dark matter detection, demonstrating initial track reconstruction of low-energy electrons to differentiate potential WIMP signals from background noise.
Contribution
It introduces a novel micro-TPC matrix for directional dark matter detection and provides proof of concept with reconstructed electron tracks at low energy levels.
Findings
Successful reconstruction of 5.9 keV electron tracks
Demonstration of electron-recoil discrimination capability
Potential to distinguish genuine WIMP signals from background
Abstract
MiMac is a project of micro-TPC matrix of gaseous (He3, CF4) chambers for direct detection of non-baryonic dark matter. Measurement of both track and ionization energy will allow the electron-recoil discrimination, while access to the directionnality of the tracks will open a unique way to distinguish a geniune WIMP signal from any background. First reconstructed tracks of 5.9 keV electrons are presented as a proof of concept.
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Taxonomy
TopicsDark Matter and Cosmic Phenomena · CCD and CMOS Imaging Sensors · Fractal and DNA sequence analysis