Kr85 Background Estimation for Solar pp Neutrino Measurement in XENONnT

27 Aug 2025, 18:00
2h
International Conference Center

International Conference Center

Poster Dark Matter and Its Detection Poster session

Speaker

Yoshino Kaminaga (ICRR, The University of Tokyo)

Description

XENONnT is a direct dark matter search experiment using 8.6 tonnes of Xe. Our observable energy threshold is few keV level, which enables us to search for physics in the low-energy electronic recoils, such as the search for events induced by solar pp neutrinos.
Kr85 is one of the background sources in such low-energy region. To achieve a high significance observation of rare physics events, a precise estimation of Kr85 abundance is required. This poster presents the method and results of the Kr85 background evaluation, and its impact on the sensitivity to solar pp neutrino measurement.

Collaboration you are representing XENON

Author

Yoshino Kaminaga (ICRR, The University of Tokyo)

Presentation materials

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