Speaker
Yoshino Kaminaga
(ICRR, the University of Tokyo)
Description
The Xe-based dark matter search experiment XENONnT searches for rare events such as dark matter recoil and solar pp neutrino signals. It requires accurate estimates of the background. The radioactive isotope 85Kr in Xe is one of the background sources in these searches. To reduce the uncertainty of its abundance, 85Kr abundance estimation using delayed coincidence counting has been introduced. This poster shows the details of this method and its results and performance.
