Search

Your search keyword '"Miyawaki, H"' showing total 2 results
Start Over Author "Miyawaki, H" Database OpenAIRE
2 results on '"Miyawaki, H"'

2. Neutrino-less Double Beta Decay of 48Ca studied by CaF2(Eu) Scintillators

Author

Umehara, S., Kishimoto, T., Ogawa, I., Hazama, R., Miyawaki, H., Yoshida, S., Matsuoka, K., Kishimoto, K., Katsuki, A., Sakai, H., Yokoyama, D., Mukaida, K., Tomii, S., Tatewaki, Y., Kobayashi, T., and Yanagisawa, A.

Subjects
FOS: Physical sciences, Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract

We searched for the neutrino-less double beta decay(0nbb) of 48Ca by using CaF2(Eu) scintillators. Analysis of their pulse shapes was effective to reduce backgrounds. No events are observed in the Q-value region for the data of 3394 kg days. It gives a lower limit (90% confidence level) of T > 2.7 x 10^22 year for the half life of 0nbb of 48Ca. Combined with our previous data for 1553 kg days, we obtained more stringent limit of T > 5.8 x 10^22 year., submitted to PRC

Published
2008

Catalog

Books, media, physical & digital resources
See catalog results