2020年1月20日
Neutrino-less double beta decay of 48Ca studied by CaF<inf>2</inf>(pure) scintillators
Journal of Physics: Conference Series
- 巻
- 1342
- 号
- 1
- 開始ページ
- 012049
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- 研究論文(国際会議プロシーディングス)
- DOI
- 10.1088/1742-6596/1342/1/012049
© Published under licence by IOP Publishing Ltd. We have studied the neutrino-less double beta decay(0νββ) of 48Ca by using CaF2(pure) scintillators. Analysis for rejection of backgrounds(212Bi→ 212Po events and 208Tl events) was effective to reduce backgrounds in Qββ-value region. No events are observed in the Qββ-value region for the data of 131 days × 86 kg. It gives a lower limit (90% confidence level) of (math) > 6.2 × 1022 year (preliminary) for the half-life of 0νββ of 48Ca.
- リンク情報
- ID情報
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- DOI : 10.1088/1742-6596/1342/1/012049
- ISSN : 1742-6588
- eISSN : 1742-6596
- SCOPUS ID : 85079089673