用GERDA实验寻找中微子双衰变

IF 5.9 2区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY

Rivista Del Nuovo Cimento Pub Date : 2020-01-01 DOI:10.1393/NCC/I2020-20024-5

V. D’Andrea

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引用次数: 6

摘要

位于格兰萨索国家实验室(LNGS)的Gerda实验寻找76Ge的中微子双β衰变。实验采用36公斤的高纯锗探测器，源和探测器同时进行，部署到超纯低温液态氩中。Gerda是该领域领先的实验之一，报道了对0νββ衰变半衰期的最高灵敏度为1.1·1026 yr，最低背景指数为6·10−4 cts/(keV·kg·yr)，出色的能量分辨率为0.12% (FWHM)。本文综述了Gerda的实验设置、分析步骤和最新结果。

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Neutrinoless double beta decay search with the GERDA experiment

The Gerda experiment, located at the Laboratori Nazionali del Gran Sasso (LNGS), searches for the neutrinoless double beta decay of 76Ge. The experiment is using 36 kg of high-purity germanium detectors, simultaneously as source and detector, deployed into ultra-pure cryogenic liquid argon. Gerda is one the leading experiments in the field, reporting the highest sensitivity on the half-life of 0νββ decay with 1.1 · 1026 yr, the lowest background index with 6 · 10 −4 cts/(keV·kg·yr) and an excellent energy resolution of 0.12% (FWHM). The experimental setup, the analysis procedures and the latest results of Gerda are summarized in the present work.

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来源期刊

Rivista Del Nuovo Cimento 物理-物理：综合

CiteScore

9.50

自引率

2.20%

发文量

审稿时长

>12 weeks

期刊介绍： La Rivista del Nuovo Cimento is an international peer-reviewed journal. It publishes monographs in all fields of physics. These monographies aim at presenting the state of the art of topical subjects of relevant interest for the community. Usually, authors are invited and topics suggested by the Deputy Editors-in-Chief, but also spontaneous submissions are examined.