The Skipper CCD for low-energy threshold particle experiments above ground

Understand

We present experimental results using a single-electron resolution Skipper-CCD running above ground level to demonstrate the potential of this technology for its use in reactor neutrino observations and other low-energy particle interaction experiments.

• Operating conditions and event-selection criteria are provided to decouple most of the background rate at low energies.
• Our final results for events with energies as low as $5$ ionized electron-hole pairs show that the exponentially increasing rate of events seen in other technologies is not present in our data.
• This demonstrates that the Skipper CCD proves to be among the best options to measure low energy and weakly interacting particles at ground level.