确认 $^{32}$Si 同核异构态的自旋俘获特征
核实验
2023-11-28 v1
摘要
先前研究中存在争议的 Si 中纳秒同核异构态的性质，依赖于‘反转岛’附近质子与中子壳层间隙的演化。我们将该同核异构态定位于 5505.2(2) keV，具有 ，主要通过到 态的 跃迁衰变。 W.u. 的 强度异常小，表明该同核异构态主要由 组态主导，该组态对 壳层间隙敏感。新观测到的 态位于 5881.4(13) keV；其能量因 亚壳层闭合而增强。这表明该同核异构态位于‘yrast trap（转晕俘获）’中，这一特征在低质量数下很少见。
引用
@article{arxiv.2311.09163,
title = {Identifying the spin trapped character of the $^{32}$Si isomeric state},
author = {J. Williams and G. Hackman and K. Starosta and R. S. Lubna and Priyanka Choudhary and P. C. Srivastava and C. Andreoiu and D. Annen and H. Asch and M. D. H. K. G. Badanage and G. C. Ball and M. Beuschlein and H. Bidaman and V. Bildstein and R. Coleman and A. B. Garnsworthy and B. Greaves and G. Leckenby and V. Karayonchev and M. S. Martin and C. Natzke and C. M. Petrache and A. Radich and E. Raleigh-Smith and D. Rhodes and R. Russell and M. Satrazani and P. Spagnoletti and C. E. Svensson and D. Tam and F. Wu and D. Yates and Z. Yu},
journal= {arXiv preprint arXiv:2311.09163},
year = {2023}
}
备注
Accepted, Physical Review C