Search for Neutrinoless Double-Beta Decay of Te-130 with CUORE-0
文献类型:期刊论文
作者 | Alfonso, K; Artusa, DR; Avignone, FT; Azzolini, O; Balata, M; Banks, TI; Bari, G; Beeman, JW; Bellini, F; Bersani, A |
刊名 | PHYSICAL REVIEW LETTERS
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出版日期 | 2015 |
卷号 | 115期号:10页码:— |
关键词 | DETECTORS CONTAMINATION PERFORMANCE VALIDATION LIMITS |
ISSN号 | 0031-9007 |
通讯作者 | Alfonso, K (reprint author), Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA. |
英文摘要 | We report the results of a search for neutrinoless double-beta decay in a 9.8 kg yr exposure of Te-130 using a bolometric detector array, CUORE-0. The characteristic detector energy resolution and background level in the region of interest are 5.1 +/- 0.3 keV FWHM and 0.058 +/- 0.004(stat) +/- 0.002(syst)counts/(keV kg yr), respectively. The median 90% C.L. lower-limit half-life sensitivity of the experiment is 2.9 x 10(24) yr and surpasses the sensitivity of previous searches. We find no evidence for neutrinoless double-beta decay of Te-130 and place a Bayesian lower bound on the decay half-life, T-1/2(0 nu) > 2.7 x 10(24) yr at 90% C.L. Combining CUORE-0 data with the 19.75 kg yr exposure of Te-130 from the Cuoricino experiment we obtain T-1/2(0 nu) > 4.0 x 10(24) yr at 90% C.L. (Bayesian), the most stringent limit to date on this half-life. Using a range of nuclear matrix element estimates we interpret this as a limit on the effective Majorana neutrino mass, m beta beta < 270-760 meV. |
语种 | 英语 |
WOS记录号 | WOS:000360528200001 |
公开日期 | 2016-03-08 |
源URL | [http://ir.sinap.ac.cn/handle/331007/25035] ![]() |
专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
推荐引用方式 GB/T 7714 | Alfonso, K,Artusa, DR,Avignone, FT,et al. Search for Neutrinoless Double-Beta Decay of Te-130 with CUORE-0[J]. PHYSICAL REVIEW LETTERS,2015,115(10):—. |
APA | Alfonso, K.,Artusa, DR.,Avignone, FT.,Azzolini, O.,Balata, M.,...&Zucchelli, S.(2015).Search for Neutrinoless Double-Beta Decay of Te-130 with CUORE-0.PHYSICAL REVIEW LETTERS,115(10),—. |
MLA | Alfonso, K,et al."Search for Neutrinoless Double-Beta Decay of Te-130 with CUORE-0".PHYSICAL REVIEW LETTERS 115.10(2015):—. |
入库方式: OAI收割
来源:上海应用物理研究所
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