$^{72}\mathrm{Ge}$ 孤立核双光子衰变的测量
核实验
2023-12-19 v1 核理论
摘要
核双光子或双伽马（）衰变是一种二阶电磁过程，处于激发态的原子核同时发射两个伽马射线。为了能够直接测量低于正负电子对产生阈值的低能区域内的 衰变率，我们将储存环的等时模式与 Schottky 谐振腔相结合。这项新开发的技术可应用于激发能低至 \,keV 且半衰期短至 \,ms 的同核异能态。裸 离子第一激发 态的 衰变半衰期被测定为 \,ms，该结果与预期存在显著偏离。
关键词
引用
@article{arxiv.2312.11313,
title = {Measurement of the Isolated Nuclear Two-Photon Decay in $^{72}\mathrm{Ge}$},
author = {D. Freire-Fernández and W. Korten and R. J. Chen and S. Litvinov and Yu. A. Litvinov and M. S. Sanjari and H. Weick and F. C. Akinci and H. M. Albers and M. Armstrong and A. Banerjee and K. Blaum and C. Brandau and B. A. Brown and C. G. Bruno and J. J. Carroll and X. Chen and Ch. J. Chiara and M. L. Cortes and S. F. Dellmann and I. Dillmann and D. Dmytriiev and O. Forstner and H. Geissel and J. Glorius and A. Görgen and M. Górska and C. J. Griffin and A. Gumberidze and S. Harayama and R. Hess and N. Hubbard and K. E. Ide and Ph. R. John and R. Joseph and B. Jurado and D. Kalaydjieva and K. Kanika and F. G. Kondev and P. Koseoglou and G. Kosir and Ch. Kozhuharov and I. Kulikov and G. Leckenby and B. Lorenz and J. Marsh and A. Mistry and A. Ozawa and N. Pietralla and Zs. Podolyák and M. Polettini and M. Sguazzin and R. S. Sidhu and M. Steck and Th. Stöhlker and J. A. Swartz and J. Vesic and P. M. Walker and T. Yamaguchi and R. Zidarova},
journal= {arXiv preprint arXiv:2312.11313},
year = {2023}
}
备注
Submitted to Physical Review Letters, 8 pages, 3 figures, 2 tables, 7 equations