The first search for bosonic super-WIMPs with masses up to 1 MeV/c${}^2$ with GERDA

Abstract

We present the first search for bosonic super-WIMPs as keV-scale dark matter candidates performed with the GERDA experiment. GERDA is a neutrinoless double-beta decay experiment which operates high-purity germanium detectors enriched in ${}^{76}$Ge in an ultra-low background environment at the Laboratori Nazionali del Gran Sasso (LNGS) of INFN in Italy. Searches were performed for pseudoscalar and vector particles in the mass region from 60 keV/c${}^2$ to 1 MeV/c${}^2$. No evidence for a dark matter signal was observed, and the most stringent constraints on the couplings of super-WIMPs with masses above 120 keV/c${}^2$ have been set. As an example, at a mass of 150 keV/c${}^2$ the most stringent direct limits on the dimensionless couplings of axion-like particles and dark photons to electrons of $g_{ae}<3\cdot 10^{-12}$ and ${\alpha }^{\prime }/\alpha <6.5\cdot 10^{-24}$ at 90% credible interval, respectively, were obtained.

6 pages, 3 figures, submitted to Physical Review Letters, added list of authors, updated ref. [21]

References in corpus (4)

• Bosonic super-WIMPs as keV-scale dark matter
• \textsc{MaGe} - a {\sc Geant4}-based Monte Carlo Application Framework for Low-background Germanium Experiments
• Limits on Axion Couplings from the first 80-day data of PandaX-II Experiment
• Search for Bosonic Super-WIMP Interactions with the XENON100 Experiment

Cited by in corpus (24)

• Phase space factors for double-$\beta$ decay
• Excess Electronic Recoil Events in XENON1T
• Search for New Physics in Electronic Recoil Data from XENONnT
• Dark photon limits: a handbook
• Toward the discovery of matter creation with neutrinoless double-beta decay
• Flavor probes of axion-like particles
• A search for new physics in low-energy electron recoils from the first LZ exposure
• Supernova bound on Axion-Like Particles coupled with electrons
• Projected sensitivities of the LUX-ZEPLIN (LZ) experiment to new physics via low-energy electron recoils
• Revisiting axion-electron bremsstrahlung emission rates in astrophysical environments
• Do direct detection experiments constrain axionlike particles coupled to electrons?
• Neutrinoless Double Beta Decay with Germanium Detectors: 10${}^{26}$ yr and Beyond
• The science and technology of liquid argon detectors
• Gamma Ray Signals from Cosmic Ray Scattering on Axion-Like Particles
• Exotic dark matter search with the Majorana Demonstrator
• Search for bosonic super-weakly interacting massive particles at COSINE-100
• Impact of Dark Compton Scattering on Direct Dark Matter Absorption Searches
• Bias-Free Estimation of Signals on Top of Unknown Backgrounds
• Performance of a convolutional autoencoder designed to remove electronic noise from p-type point contact germanium detector signals
• How to measure the spin of invisible states in $e^{+}{e}^{-}\to \gamma +X$
• Flavor-changing axions and Dirac neutrino masses
• CMB Constraints on Loop-Induced Decays of Leptophilic Dark Matter
• Comments on bosonic super-WIMPs search experiments
• INTEGRAL, eROSITA and Voyager Constraints on Light Bosonic Dark Matter: ALPs, Dark Photons, Scalars, $B-L$ and $L_i-L_j$ Vectors