14-17 September 2021
America/Los_Angeles timezone

Neutrino Backgrounds in Future Liquid Noble Element Dark Matter Direct Detection Experiments

16 Sep 2021, 14:00
Signal reconstruction and identification (analysis methods, simulations) Signal Reconstruction (3C)


Pietro Giampa (SNOLAB)


Experiments that use liquid noble gasses as target materials, such as argon and xenon, play a significant role in direct detection searches for WIMP(-like) dark matter. As these experiments grow in size, they will soon encounter a new background to their dark matter discovery potential from neutrino scattering off nuclei and electrons in their targets. Therefore, a better understanding of this new source of background is crucial for future large-scale experiments such as ARGO and DARWIN. In this work, we study the impact of atmospheric neutrino flux uncertainties, electron recoil rejection efficiency, recoil energy sensitivity, and other related factors on the dark matter discovery reach. We also show that a significant improvement in sensitivity can potentially be obtained, at large exposures, by combining data from independent argon and xenon experiments.

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