Searches for new physics below twice the electron mass with GERDA.
Journal
The European physical journal. C, Particles and fields
ISSN: 1434-6044
Titre abrégé: Eur Phys J C Part Fields
Pays: France
ID NLM: 101622319
Informations de publication
Date de publication:
2024
2024
Historique:
received:
26
03
2024
accepted:
11
06
2024
medline:
23
9
2024
pubmed:
23
9
2024
entrez:
23
9
2024
Statut:
ppublish
Résumé
A search for full energy depositions from bosonic keV-scale dark matter candidates of masses between 65 and 1021 keV has been performed with data collected during Phase II of the GERmanium Detector Array (Gerda) experiment. Our analysis includes direct dark matter absorption as well as dark Compton scattering. With a total exposure of 105.5 kg years, no evidence for a signal above the background has been observed. The resulting exclusion limits deduced with either Bayesian or Frequentist statistics are the most stringent direct constraints in the major part of the 140-1021 keV mass range. As an example, at a mass of 150 keV the dimensionless coupling of dark photons and axion-like particles to electrons has been constrained to The online version contains supplementary material available at 10.1140/epjc/s10052-024-13020-0.
Identifiants
pubmed: 39309033
doi: 10.1140/epjc/s10052-024-13020-0
pii: 13020
pmc: PMC11410851
doi:
Types de publication
Journal Article
Langues
eng
Pagination
940Informations de copyright
© The Author(s) 2024.