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Stachura","submitted_at":"2008-01-24T17:14:38Z","abstract_excerpt":"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. 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