論文

査読有り
2016年4月

Latest results from KamLAND-Zen second phase

NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS
  • Yoshihito Gando

273
開始ページ
1842
終了ページ
1846
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
10.1016/j.nuclphysbps.2015.09.297
出版者・発行元
ELSEVIER SCIENCE BV

We report on preliminary results from the second phase of KamLAND-Zen double beta decay search experiment based on 114.8 days with 383 kg of Xe-136. Second phase of KamLAND-Zen was started after the purification to reduce the dominant Ag-110m background identified by first phase data. The background was reduced by more than a factor of 10 by purification for liquid scintillator and xenon gas. By combining the first and second phase data and applying the improved event selection, we obtained a preliminary lower limit for the neutrinoless double-beta decay half-life, T-1/2(0 nu) > 2.6 x 10(25) yr at 90% C.L. We also present the prospects about current phase of KamLAND-Zen and next phases with upgrades.

Web of Science ® 被引用回数 : 3

リンク情報
DOI
https://doi.org/10.1016/j.nuclphysbps.2015.09.297
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000390295200295&DestApp=WOS_CPL

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