Feb 18 – 26, 2021
Europe/Rome timezone

KamLAND-Zen 800

Feb 23, 2021, 10:20 AM
Room 1 (https://unipd.link/NeuTel-ParallelRoom1)

Room 1


Parallel Contributed Talk Neutrino Masses and Mixings Double Beta decays and Neutrino Masses


Hideyoshi Ozaki (RCNS, Tohoku University)


KamLAND-Zen 800 is a neutrinoless double-beta decay search experiment with the Kamioka Liquid-scintillator Anti-electron Neutrino Detector (KamLAND). In 2019, we started KamLAND-Zen 800 experiment with 745 kg of xenon. We achieved the background reductions by reducing the radioactive materials in the newly fabricated 25-μm-thick nylon film container for the Xe-loaded LS and developing a new analysis technique to reject the cosmic-ray muon spallation backgrounds. We continue the observation to search within the inverse hierarchy region of the Majorana neutrino effective mass.
In the presentation, the detector status and the estimation of the 0nbb decay search backgrounds will be reported.

Collaboration name KamLAND-Zen Collaboration

Primary author

Hideyoshi Ozaki (RCNS, Tohoku University)

Presentation materials