https://doi.org/10.1140/epjc/s10052-023-11828-w
Letter
Investigation of light dark matter with 2
decay experiments
1
INFN-TIFPA Via Sommarive 14, 38123, Trento, Italy
2
Physics Department, Trento University, Via Sommarive 14, 38123, Trento, Italy
Received:
14
April
2023
Accepted:
10
July
2023
Published online:
19
July
2023
Nuclei that are unstable with respect to double beta decay are investigated in this work for a novel dark matter (DM) direct detection approach. In particular, the diagram responsible for the neutrinoless double beta decay can be considered for the possible detection technique of a Majorana DM fermion inelastically scattering on a double beta unstable nucleus, stimulating its decay. The exothermic nature of the stimulated double beta decay would allow the direct detection also of a light DM fermion, a class of DM candidates that are difficult or impossible to investigate with the traditional elastic scattering techniques. The expected signal distribution for different DM masses and the upper limits on the nucleus scattering cross sections, are shown and compared with the existing data for the case of 
Xe nucleus.
© The Author(s) 2023
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Funded by SCOAP3. SCOAP3 supports the goals of the International Year of Basic Sciences for Sustainable Development.
