Search for neutrino-less double beta decay of 48Ca
1 Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki, Osaka 567-0047, Japan
2 Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
3 Graduate School of Engineering, University of Fukui, Fukui 910-8507, Japan
4 Faculty of Integrated Arts and Science, The University of Tokushima, Tokushima 770-8502, Japan
5 Faculty of Human Environment, Osaka Sangyo University, Daito, Osaka 574-8530, Japan
6 Faculty of Culture and Education, Saga University, Saga 840-8502, Japan
7 Department of Computer Science and Engineering, Kyoto Sangyo University, Kyoto 603-8555, Japan
a e-mail: firstname.lastname@example.org
Published online: 20 March 2014
CANDLES is the project to search for neutrino-less double beta decay (0νββ) of 48Ca. The observation of 0νββ will prove existence of a massive Majorana neutrino. For the 0νββ measurement, we need a low background condition because of a low decay rate of 0νββ. 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. Here we report performances of the CANDLES III system.
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