arXiv 1801.035802018-01hep-exphysics.ins-det

用TeO2热探测器搜索无中微子双β衰变的传奇

The saga of neutrinoless double beta decay search with TeO2 thermal detectors

Chiara Brofferio, Stefano Dell'Oro

备注：: review paper: 30 pages, 31 figures, 4 tables
发表信息：: Rev. Sci. Instrum. 89, 121502 (2018)
DOI：: 10.1063/1.5031485

摘要：

无中子双β衰变（0 nbb）是对标准模型之外物理的直接探索。它的发现将证明轻子数不是自然界的对称性，并将为我们提供关于中微子性质和质量的独特信息。在研究这一罕见过程所采用的实验技术中，热探测器满足了强大搜索的要求，显示出出色的能量分辨率和扩展到非常大质量的可能性。在这项工作中，我们回顾了长链的测辐射热实验的基础上TeO 2晶体，并继续进行在Gran Sasso（意大利），寻找130-Te的0 nbb。我们说明了近三十年的测量取得的进展和改进，并比较各种性能和结果。我们描述了导致CUORE探测器的几个步骤，这是该系列中的最新产品，目前正在进行数据采集，我们强调了下一个测辐射热实验将面临的挑战，以进一步提高灵敏度，特别是关于背景消除。最后，我们强调了130-Te在寻找0ν \b{eta} \b{eta}中的优势，以及进一步的未来（和许多）昂贵的实验。

英文摘要：

Neutrinoless double beta decay (0nbb) is a direct probe of physics beyond the Standard Model. Its discovery would demonstrate that the lepton number is not a symmetry of nature and would provide us with unique information on the nature and mass of the neutrinos. Among the experimental techniques employed in the investigation of this rare process, thermal detectors fulfill the requirements for a powerful search, showing an excellent energy resolution and the possibility of scaling to very large masses. In this work, we review the long chain of bolometric experiments based on TeO 2 crystals that were and continue to be carried out at the Laboratori Nazionali del Gran Sasso (Italy), searching for the 0nbb of 130-Te. We illustrate the progresses and improvements achieved in almost thirty years of measurements and compare the various performance and results. We describe the several steps that led to the CUORE detector, the latest of this series and presently in data taking, and we highlight the challenges that a next bolometric experiment will face in order to further improve the sensitivity, especially concerning the background abatement. Finally, we emphasize the advantages of 130-Te in the search for 0ν\b{eta}\b{eta} with a further future (and much) expensive experiment.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

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