GERDA实验数据的离线处理与分析
Off-line data processing and analysis for the GERDA experiment
摘要：
GERDA是一个旨在寻找Ge-76的无中微子双β衰变的实验。该实验使用了一组高纯度锗探测器，富含Ge-76，直接浸入液态氩中。GERDA目前正在运行8个浓缩同轴探测器（大约15公斤Ge-76），下一阶段将部署大约30个新的定制浓缩BEGe探测器（另外20公斤Ge-76）。本文介绍了高纯锗探测器数据的GERDA离线分析。首先，我们介绍了信号处理流程，重点是数字滤波器和所使用的算法。其次讨论了非物理事件的剔除和数据质量监控。该分析是完全与GERDA软件框架（GELATIO），旨在支持多通道处理，并执行数字信号的模块化分析。
英文摘要：
GERDA is an experiment designed to look for the neutrinoless double beta decay of Ge-76. The experiment uses an array of high-purity germanium detectors, enriched in Ge-76, directly immersed in liquid argon. GERDA is presently operating eight enriched coaxial detectors (approximately 15 kg of Ge-76) and about 30 new custom-made enriched BEGe detectors will be deployed in the next phase (additional 20 kg of Ge-76). The paper describes the GERDA off-line analysis of the high-purity germanium detector data. Firstly we present the signal processing flow, focusing on the digital filters and on the algorithms used. Secondly we discuss the rejection of non-physical events and the data quality monitoring. The analysis is performed completely with the GERDA software framework (GELATIO), designed to support a multi-channel processing and to perform a modular analysis of digital signals.
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