Neutrinoless double beta decay ($0\nu \beta \beta$) is a posited lepton number violating decay whose search is an increasingly active field in modern astroparticle physics. A discovery would imply neutrinos are Majorana particles and inform neutrino physics, cosmology and beyond-standard-model theories. Among the few nuclei where double beta decay ($\beta \beta$) is allowed, tellurium isotopes stand for their high natural abundance and are currently employed in multiple experiments. The search for $0\nu \beta \beta$ will provide large exposure data sets in the coming years, paving the way for unprecedented sensitivities. We review the latest rare decay searches in tellurium isotopes and compare past results with theories and prospects from running experiments.

中文翻译：

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碲同位素稀有衰变研究现状与展望

无中微子双β衰变（$0\nu \beta \beta$) 是一个违反衰变的假定轻子数，其搜索是现代天体粒子物理学中一个日益活跃的领域。一项发现意味着中微子是马约拉纳粒子，并为中微子物理学、宇宙学和超标准模型理论提供信息。在为数不多的双β衰变原子核中（$\beta \beta$) 是允许的，碲同位素代表它们的高天然丰度，目前在多个实验中使用。寻找$0\nu \beta \beta$将在未来几年提供大量暴露数据集，为前所未有的敏感性铺平道路。我们回顾了碲同位素中最新的罕见衰变搜索，并将过去的结果与运行实验的理论和前景进行了比较。