$^{96}$Zr 单次贝塔衰变的首次观测
核实验
2026-05-19 v1
摘要
首次检测到 Zr 的单次贝塔衰变，采用211 cm³低背景高纯锗探测器，外加两个富锆样本（ Zr 原子分数为88.28%，总质量为140.65 g）。在搜索 Zr 的贝塔衰变过程中，发现 Nb 的贝塔衰变衍生至 Mo 的激发态。探测器检测了由 Mo 核在去激发至基态所产生的伽马射线级联。实验在巴卡斯神秘观测站进行，累计获得12625.34小时数据。测得 Zr 单次贝塔衰变的半衰期为 年。
引用
@article{arxiv.2605.18344,
title = {First observation of single beta decay of $^{96}$Zr},
author = {A. S. Barabash and S. Evseev and D. Filosofov and Yu. M. Gavrilyuk and A. M. Gangapshev and N. Gorshkov and V. V. Kazalov and S. Kazartsev and T. Khussainov and V. V. Kuzminov and A. Lubashevskiy and D. V. Ponomarev and S. Rozov and N. Temerbulatova and S. Vasilyev and E. A. Yakushev and V. I. Yumatov},
journal= {arXiv preprint arXiv:2605.18344},
year = {2026}
}