Speaker
Mr
Konosuke Tetsuno
(Osaka University)
Description
The observation of neutrino-less double beta decay (0nbb) is considered to be the most practical way to prove the Majorana nature of the neutrino and lepton number violation. CANDLES (CAlcium fluoride for the study of Neutrinos and Dark matters by Low Energy Spectrometer) is the experiment to search for the 0nbb of 48Ca with CaF2 scintillator. The advantage of 48Ca is that it has the highest Q-value (4.3 MeV) among all isotope candidates for 0nbb. It enables us to measure signals with very low background condition.
The CANDLES detector is installed at Kamioka underground observatory, Japan and it consists of 96 pure CaF2 crystals (300kg). These crystals are immersed in liquid scintillator as an active shield.
We have been taking data for several years. And we have analyzed them with some analytical techniques.
In this presentation, we report on the latest result obtained by the data of several hundred days. In addition, we present the strategy for future CANDLES experiment.
Primary author
Mr
Konosuke Tetsuno
(Osaka University)
Co-author
for the CANDLES collaborations ---
(Osaka University(Graduate school of science), Osaka University(RCNP), Fukui University, Tokushima University, Osaka Sangyo University, Tsukuba University, Saga University, The Wakasa wan Energy Research Center)
