Muonic X射线超细结构的185-RE和187-RE的四极矩的测量值

论文标题

Muonic X射线超细结构的185-RE和187-RE的四极矩的测量值

The measurement of the quadrupole moment of 185-Re and 187-Re from the hyperfine structure of muonic X rays

论文作者

Antognini, A., Berger, N., Cocolios, T. E., Dressler, R., Eichler, R., Eggenberger, A., Indelicato, P., Jungmann, K. -P., Keitel, C. H., Kirch, K., Knecht, A., Michel, N., Nuber, J., Oreshkina, N. S., Ouf, A., Papa, A., Pohl, R., Pospelov, M., Rapisarda, E., Ritjoho, N., Roccia, S., Severijns, N., Skawran, A., Vogiatzi, S. M., Wauters, F., Willmann, L.

论文摘要

使用高分辨率HPGE检测器测量了Muonic 185,187-RE中5G-> 4F跃迁的超细分裂，并与最先进的原子理论预测进行了比较。光谱四极力矩已使用现代拟合程序提取，并将其与从天然rhenium的Muonic X射线获得的文献中可用的值进行了比较。核光谱四极矩的提取值分别为2.07（5）谷仓和1.94（5）谷仓，分别为185-RE和187-RE。这项工作是Paul Scherrer Institut进行更大努力的一部分，以测量放射性元件的核电射线半径。

The hyperfine splitting of the 5g -> 4f transitions in muonic 185,187-Re has been measured using high resolution HPGe detectors and compared to state-of-the-art atomic theoretical predictions. The spectroscopic quadrupole moment has been extracted using modern fitting procedures and compared to the values available in literature obtained from muonic X rays of natural rhenium. The extracted values of the nuclear spectroscopic quadrupole moment are 2.07(5) barn and 1.94(5) barn, respectively for 185-Re and 187-Re. This work is part of a larger effort at the Paul Scherrer Institut towards the measurement of the nuclear charge radii of radioactive elements.

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