KamLAND-Zen is a neutrinoless double beta decay search experiment based on the $^{136} \rm Xe$ loaded liquid scintillator.
KamLAND-Zen 400 project was already terminated and its latest limit for half life of $0\nu\beta\beta$ is $\rm T_{1/2} >1.07\times 10^{26}$ years at 90% confidence level.
It corresponds to Majorana effective mass $\langle m_{\beta \beta} \rangle <$ 61$-$165 meV.
After the KamLAND-Zen 400, we have started KamLAND-Zen 800 project which will use 750 kg xenon and new clean nylon balloon called mini-balloon to contain xenon loaded liquid scintillator.
We made mini-balloon with various contamination rejection techniques, and we successfully installed it in KamLAND.
Currently we are purifying non-xenon-loaded scintillator in mini-balloon.
After the purification, we will dissolve xenon in the liquid scintillator.
Volume 337 -
Neutrino Oscillation Workshop (NOW2018) -
Session IV: Neutrino masses, states and interactions
Neutrinoless double beta decay search with KamLAND-Zen
Full text:
pdf
Published on:
April 24, 2019
Abstract
DOI: https://doi.org/10.22323/1.337.0068
How to cite
Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.
Open Access
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.