Speaker
Masaki Yamashita
(Kavli IPMU, the University of Tokyo)
Description
Direct dark matter searches require an ultra-low background, which is essential to improving sensitivity. Many efforts have been made to reduce and understand these techniques.
XENON1T observed an event excess at 1-7 keV in 2020, but not in XENONnT, which is thought to be background due to tritium. Quantitatively assessing this background is useful for future experiments.
In this talk, I will present measurements of atmospheric tritium by sampling HTO and HT and discuss an impact on the direct dark matter experiments with LXe.
Primary author
Masaki Yamashita
(Kavli IPMU, the University of Tokyo)
