Searches for electron interactions induced by new physics in the EDELWEISS-III germanium bolometers

Understand

We make use of the EDELWEISS-III array of germanium bolometers to search for electron interactions at the keV scale induced by phenomena beyond the Standard Model.

• A 90% C.L.
• lower limit is set on the electron lifetime decaying to invisibles, $\tau > 1.2\times 10^{24}$ years.
• We investigate the emission of axions or axionlike particles (ALPs) by the Sun, constraining the coupling parameters $g_{ae}<1.1\times 10^{-11}$ and $g_{ae}\times g_{aN}^{\rm eff} < 3.5\times 10^{-17}$ at 90% C.L.