LNGS: K. NAKAMURA - NEUTRINO-LESS DOUBLE BETA DECAY SEARCH AT KAMLAND 
 ELENCO COMPLETO 

DATA: 10-01-2018

LABORATORI NAZIONALI DEL GRAN SASSO
After neutrino oscillations have been confirmed by several experiments, neutrino mass hierarchy is the key issue to understand neutrino nature. Search for neutrino-less double beta decay is one of the way to investigate the neutrino mass hierarchy. KamLAND-Zen400 is an experiment to search for neutrino-less Double beta decay with 400 kg of e-136 and the mission has been completed after 4 years of data taking. The final result does not see the signal of neutrino-less double beta decay, but constrains on mass hierarchy was improved and getting to "Inverted" hierarchy region. We are upgrading KamLAND-Zen400 to KamLAND-Zen800 to reach to the Inverted hierarchy region. The main focus of this talk is the KamLAND-Zen experiment: final result and upgrade status. Since KamLAND-Zen is a part of KamLAND experiment that has several on-going physics programs, such as Neutrino Oscillation from Nuclear Reactors and Geo-Neutrinos, the KamLAND experiment is briefly introduced prior to KamLAND-Zen. --- Kengo Nakamura Tohoku University KamLAND Project Japan


 SITO COLLEGATO 
http://agenda.infn.it/event/nakamura

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