Ponente
Dr.
Takashi Iida
(Osaka University)
Descripción
Neutrino less double beta decay is the only practical way to prove the Majorana nature of the neutrino. CANDLES is a 48Ca double beta decay experiment with CaF2 scintillator. The CANDLES III (U.G.) detector is currently running with 300kg CaF2 crystals in the Kamioka underground observatory, Japan. New light collection system was installed in 2012, and accordingly photo-coverage has been enlarged by about 80%. We are currently analyzing the data taken until 2013 to clarify the origin of the backgrounds. Here we will present the performance of the latest CANDLES III (U.G.) system and the background reduction technique developed using waveform analysis. We also mention about future prospects of our project including a further improvement by installing a detector cooling system in 2014 in order to increase light emission from CaF2 crystals.
Autor primario
Dr.
Takashi Iida
(Osaka University)
