中文

利用 SPICE 谱仪改进对 $^{72}$Se 的 $0_2^+\rightarrow0_1^+$ E0 跃迁强度的测量

核实验 2022-07-21 v1

摘要

硒同位素位于核素图上一个动荡区域的核心,在此形状共存效应与中子-质子配对关联、三轴性以及迫近的质子滴线相互交织。本工作中,利用 SPICE 与 TIGRESS 阵列对 72^{72}Se 进行了内转换电子与 γ\gamma 射线能谱学研究。对 02+0_2^+ 态的分支比和寿命进行了新的测量,得出 ρ2(E0;02+01+)=29(3)\rho^2(E0;0_2^+{\rightarrow}0_1^+)=29(3) 毫单位。进行了双态混合计算,突显了在形状共存背景下解释此类 E0E0 强度值的重要性。

关键词

引用

@article{arxiv.2207.06006,
  title  = {Improved measurement of the $0_2^+\rightarrow0_1^+$ E0 transition strength for $^{72}$Se using the SPICE spectrometer},
  author = {J. Smallcombe and A. B. Garnsworthy and W. Korten and P. Singh and F. A. Ali and C. Andreoiu and S. Ansari and G. C. Ball and C. J. Barton and S. S. Bhattacharjee and M. Bowry and R. Caballero-Folch and A. Chester and S. A. Gillespie and G. F. Grinyer and G. Hackman and C. Jones and B. Melon and M. Moukaddam and A. Nannini and P. Ruotsalainen and K. Starosta and C. E. Svensson and R. Wadsworth and J. Williams},
  journal= {arXiv preprint arXiv:2207.06006},
  year   = {2022}
}