PoS - Proceedings of Science
Volume 449 - The European Physical Society Conference on High Energy Physics (EPS-HEP2023) - T03 Dark Matter
Recent searches for light dark matter with DarkSide-50
P. Agnes*  on behalf of the DarkSide-50 Collaboration
Full text: pdf
Pre-published on: February 27, 2024
Published on: March 21, 2024
DarkSide-50 is an experiment for direct dark matter detection at Laboratori Nazionali del
Gran Sasso. It uses a dual-phase time projection chamber filled with low-radioactivity argon extracted from underground. Thanks to single electron sensitivity and with an analysis based only on the ionization signal, Darkside-50 set the most stringent exclusion limit on WIMPs with a mass of few GeV/c$^2$. A recent analysis improves by 10 times the existing exclusion limits for spin-independent WIMP-nucleon interactions in the [1.2, 3.6] GeV/c$^2$
mass range. Thanks to the inclusion of the Migdal effect, the exclusion limits are extended down to 40 MeV/c$^2$
dark matter mass. Furthermore, new constraints are set to the interactions of dark matter particles with electron final state, namely low-mass WIMPs interacting with electrons, galactic axions, dark photons, and sterile neutrinos.
DOI: https://doi.org/10.22323/1.449.0110
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