Search for Majorana neutrinos
Search for Majorana neutrinos
复制标题
寻找马约拉纳中微子
DOI：
10.1093/ptep/ptad038
复制
发表时间：
2023
影响因子：
3.5
通讯作者：
Shimizu Itaru
中科院分区：
文献类型：
--
作者：
Mori Chihiro;Aoki Naoya;Fujita Toshiyuki;Yamaguchi Shinji;Matsushima Toshiya;Homma Koichi J.;Shimizu Itaru
是否存在具有马约拉纳性质的基本粒子是自20世纪30年代以来一直存在的一个基本开放问题。检验中微子马约拉纳性质的唯一实际实验是寻找无中微子的双β衰变，这对核物理学家和粒子物理学家来说是一个重大挑战。在2000年代，计划了一些使用先进技术的实验，其中一些已经在搜索灵敏度方面取得了显着改善。本文综述了无中微子双β衰变研究的现状，回顾了世界上最灵敏的马约拉纳中微子质量极限探测器KamLAND-Zen的研究进展。
Whether there exist elementary particles having Majorana nature is a fundamental open question that has persisted since the 1930s. The only practical experiments to test the Majorana nature of neutrinos is the search for neutrinoless double-beta decay, which has been a major challenge for nuclear and particle physicists. In the 2000s, a number of experiments using advanced technologies were planned, some of which have already achieved significant improvements in the search sensitivity. In this article, the current status of the neutrinoless double-beta decay searches is summarized, reviewing the progress of KamLAND-Zen, which recorded the world’s best sensitivity in the effective Majorana neutrino mass limit.