Speaker
Dr
Jingke Xu
(Lawrence Livermore National Laboratory)
Description
Liquid xenon TPCs have observed high rates of pathological electrons in the low-energy region, which impair their sensitivities in dark matter searches. They are a direct background to low-mass dark matter interactions that may only produce sub-keV nuclear recoils, and also contribute accidental coincidence backgrounds in large experiments. I will review the studies of low-energy photon and electron backgrounds in both the LUX and the LZ experiments and discuss their implications for future experiments.
