Isotope shift in the dielectronic recombination of three-electron ^{A}Nd^{57+}

Details Isotope shift in the dielectronic recombination of three-electron ^{A}Nd^{57+} Isotope shift in the dielectronic recombination of three-electron ^{A}Nd^{57+}

2008-01-24

arxiv.org/abs/0801.3798v1

Phys. Rev. Lett. 100, 073201 (2008)

Physics

Atomic Physics

10 pages, 3 figures, accepted for publication in Physical Review Letters

Scientific paper

10.1103/PhysRevLett.100.073201

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 = -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.

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