Isotope shift in the dielectronic recombination of three-electron ^{A}Nd^{57+}
Atomic Physics
2008-04-05 v1
Abstract
Isotope shifts in dielectronic recombination spectra were studied for Li-like ^{A}Nd^{57+} ions with A=142 and A=150. From the displacement of resonance positions energy shifts \delta E^{142,150}(2s-2p_1/2)= 40.2(3)(6) meV (stat)(sys)) and \delta E^{142,150}(2s-2p_3/2) = 42.3(12)(20) meV of 2s-2p_j transitions were deduced. An evaluation of these values within a full QED treatment yields a change in the mean-square charge radius of ^{142,150}\delta <r^2> = -1.36(1)(3) fm^2. The approach is conceptually new and combines the advantage of a simple atomic structure with high sensitivity to nuclear size.
Keywords
Cite
@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}
}
Comments
10 pages, 3 figures, accepted for publication in Physical Review Letters