三电子 ^{A}Nd^{57+} 离子的双电子复合中的同位素位移
原子物理
2008-04-05 v1
摘要
研究了类锂 ^{A}Nd^{57+} 离子（A=142 和 A=150）在双电子复合谱中的同位素位移。根据共振位置的移动，推导出 2s-2p_j 跃迁的能量位移为 \delta E^{142,150}(2s-2p_1/2)= 40.2(3)(6) meV (stat)(sys) 和 \delta E^{142,150}(2s-2p_3/2) = 42.3(12)(20) meV。在完整的 QED 处理框架下对这些值进行评估，得出均方电荷半径的变化为 ^{142,150}\delta <r^2> = -1.36(1)(3) fm^2。该方法在概念上是新的，结合了简单原子结构的优势与对核尺寸的高灵敏度。
引用
@article{arxiv.0801.3798,
title = {Isotope shift in the dielectronic recombination of three-electron ^{A}Nd^{57+}},
author = {C. Brandau and C. Kozhuharov and Z. Harman and A. Müller and S. Schippers and Y. S. Kozhedub and D. Bernhardt and S. Böhm and J. Jacobi and E. W. Schmidt and P. H. Mokler and F. Bosch and H. -J. Kluge and Th. Stöhlker and K. Beckert and P. Beller and F. Nolden and M. Steck and A. Gumberidze and R. Reuschl and U. Spillmann and F. J. Currell and I. I. Tupitsyn and V. M. Shabaev and U. D. Jentschura and C. H. Keitel and A. Wolf and Z. Stachura},
journal= {arXiv preprint arXiv:0801.3798},
year = {2008}
}
备注
10 pages, 3 figures, accepted for publication in Physical Review Letters