用于双β衰变搜索的光热读出低温量热计分析。
Analysis of cryogenic calorimeters with light and heat read-out for double beta decay searches.
作者信息
Azzolini O, Barrera M T, Beeman J W, Bellini F, Beretta M, Biassoni M, Bossio E, Brofferio C, Bucci C, Canonica L, Capelli S, Cardani L, Carniti P, Casali N, Cassina L, Clemenza M, Cremonesi O, Cruciani A, D'Addabbo A, Dafinei I, Domizio S Di, Ferroni F, Gironi L, Giuliani A, Gorla P, Gotti C, Keppel G, Martinez M, Morganti S, Nagorny S, Nastasi M, Nisi S, Nones C, Orlandi D, Pagnanini L, Pallavicini M, Palmieri V, Pattavina L, Pavan M, Pessina G, Pettinacci V, Pirro S, Pozzi S, Previtali E, Puiu A, Rusconi C, Schäffner K, Tomei C, Vignati M, Zolotarova A
机构信息
1INFN, Laboratori Nazionali di Legnaro, 35020 Legnaro, Padua Italy.
2Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA.
出版信息
Eur Phys J C Part Fields. 2018;78(9):734. doi: 10.1140/epjc/s10052-018-6202-5. Epub 2018 Sep 12.
The suppression of spurious events in the region of interest for neutrinoless double beta decay will play a major role in next generation experiments. The background of detectors based on the technology of cryogenic calorimeters is expected to be dominated by particles, that could be disentangled from double beta decay signals by exploiting the difference in the emission of the scintillation light. CUPID-0, an array of enriched Zn Se scintillating calorimeters, is the first large mass demonstrator of this technology. The detector started data-taking in 2017 at the Laboratori Nazionali del Gran Sasso with the aim of proving that dual read-out of light and heat allows for an efficient suppression of the background. In this paper we describe the software tools we developed for the analysis of scintillating calorimeters and we demonstrate that this technology allows to reach an unprecedented background for cryogenic calorimeters.
在无中微子双β衰变感兴趣区域中抑制虚假事件将在下一代实验中发挥重要作用。基于低温量热计技术的探测器背景预计主要由 粒子主导，通过利用闪烁光发射的差异可以将其与双β衰变信号区分开来。CUPID - 0是一组富集ZnSe闪烁量热计阵列，是该技术的首个大型质量演示器。该探测器于2017年在大萨索国家实验室开始采集数据，目的是证明光和热的双重读出能够有效抑制 背景。在本文中，我们描述了为闪烁量热计分析开发的软件工具，并证明该技术能够实现低温量热计前所未有的背景水平。
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