Search For Neutrino-less Double Beta Decay Of 48Ca- Candles -
S. Umehara*,
T. Kishimoto,
M. Nomachi,
S. Ajimura,
T. Iida,
Y. Takemoto,
K. Matsuoka, V.T.T. Trang, S. Yoshida, W. Wang, W.M. Chan, T. Maeda, T. Ohata, K. Tetsuno, T. Uehara, X. Lee, B. Temuge, K. Akutagawa, K. Kanagawa, S. Katagiri, M. Tsuzuki, N. Yotsunaga, Y. Tamagawa, I. Ogawa, K. Nakajima, S. Noshiro, A. Masuda, K. Morishita, M. Washino, N. Takahashi, K. Teranishi, F. Tokaku, T. Hiyama, K. Fushimi, K. Mori, R. Hazama, N. Nakatani, K. Suzuki, H. Ohsumi and B.T. Khaiet al. (click to show)*: corresponding author
Pre-published on:
May 04, 2017
Published on:
May 09, 2017
Abstract
The neutrino-less double beta decay is acquiring great interest
after the confirmation of neutrino oscillation
which demonstrated nonzero neutrino mass.
In order to search for neutrino-less double beta decay of $^{48}$Ca,
we proposed the CANDLES project by using CaF$_{2}$(pure) scintillators.
Now we installed the CANDLES III system at the Kamioka underground laboratory.
The CANDLES III system realizes the low background condition
by a characteristic structure and data analyses for background rejection.
Furthermore we installed new shielding system in order to reduce
$\gamma$-ray backgrounds from neutron capture reaction.
Here we report performances of the CANDLES III system.
DOI: https://doi.org/10.22323/1.281.0246
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