Search for neutrinoless double-beta decay with the upgraded exo-200 detector
文献类型：期刊论文
| 作者 | Albert, J. B.1,2; Anton, G.3; Badhrees, I.4,31; Barbeau, P. S.5,6; Bayerlein, R.3; Beck, D.7; Belov, V.8; Breidenbach, M.9; Brunner, T.10,11; Cao, G. F.12 |
| 刊名 | Physical review letters
 |
| 出版日期 | 2018-02-15 |
| 卷号 | 120期号:7页码:6 |
| ISSN号 | 0031-9007 |
| DOI | 10.1103/physrevlett.120.072701 |
| 通讯作者 | Licciardi, c.(licciard@triumf.ca) |
| 英文摘要 | Results from a search for neutrinoless double-beta decay (0 nu beta beta) of xe-136 are presented using the first year of data taken with the upgraded exo-200 detector. relative to previous searches by exo-200, the energy resolution of the detector has been improved to sigma/e = 1.23%, the electric field in the drift region has been raised by 50%, and a system to suppress radon in the volume between the cryostat and lead shielding has been implemented. in addition, analysis techniques that improve topological discrimination between 0 nu beta beta and background events have been developed. incorporating these hardware and analysis improvements, the median 90% confidence level 0 nu beta beta half-life sensitivity after combining with the full data set acquired before the upgrade has increased twofold to 3.7 x 10(25) yr. no statistically significant evidence for 0 nu beta beta is observed, leading to a lower limit on the 0 nu beta beta half-life of 1.8 x 10(25) yr at the 90% confidence level. |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Multidisciplinary |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000425094600001 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2178020 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Licciardi, C. |
| 作者单位 | 1.Indiana Univ, Phys Dept, Bloomington, IN 47405 USA 2.Indiana Univ, CEEM, Bloomington, IN 47405 USA 3.Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, D-91058 Erlangen, Germany 4.Carleton Univ, Phys Dept, Ottawa, ON K1S 5B6, Canada 5.Duke Univ, Dept Phys, Durham, NC 27708 USA 6.TUNL, Durham, NC 27708 USA 7.Univ Illinois, Phys Dept, Urbana, IL 61801 USA 8.Inst Theoret & Expt Phys, Moscow 117218, Russia 9.SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA 10.McGill Univ, Phys Dept, Montreal, PQ, Canada |
| 推荐引用方式 GB/T 7714 | Albert, J. B.,Anton, G.,Badhrees, I.,et al. Search for neutrinoless double-beta decay with the upgraded exo-200 detector[J]. Physical review letters,2018,120(7):6. |
| APA | Albert, J. B..,Anton, G..,Badhrees, I..,Barbeau, P. S..,Bayerlein, R..,...&Ziegler, T..(2018).Search for neutrinoless double-beta decay with the upgraded exo-200 detector.Physical review letters,120(7),6. |
| MLA | Albert, J. B.,et al."Search for neutrinoless double-beta decay with the upgraded exo-200 detector".Physical review letters 120.7(2018):6. |
入库方式： iSwitch采集
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。