PoS - Proceedings of Science
Volume 441 - XVIII International Conference on Topics in Astroparticle and Underground Physics (TAUP2023) - Dark Matter and its Detection
A novel approach for the direct detection of light Dark Matter in Double Beta decay experiments
F. Nozzoli
Full text: pdf
Pre-published on: January 10, 2024
Published on: March 22, 2024
The direct detection of light fermionic Dark Matter (DM) is a technological challenging task. In this work the nuclei that are unstable against the 2$\beta$ decay are considered as a target for the direct detection of a class of light Dark Matter candidates.
In particular, the same diagram responsible for the hypothetical neutrinoless double beta decay could be considered for the detection of a Majorana DM fermion. In this detection approach, the interaction of the DM fermion with the unstable nucleus causes the nucleus decay.
The relatively large energy provided by the nucleus decay provides an experimental signature for this class of light DM fermion.
The expected signal distribution for various DM masses is evaluated and compared with the current data available from the experiments using $^{76}$Ge and $^{136}$Xe target nuclei.
The upper limits on the total cross sections for this inelastic nucleus scattering are shown.
DOI: https://doi.org/10.22323/1.441.0033
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