TY - JOUR

T1 - Isotope shifts in dielectronic recombination

T2 - From stable to in-flight-produced nuclei

AU - Brandau, C.

AU - Kozhuharov, C.

AU - Müller, A.

AU - Bernhardt, D.

AU - Böhm, S.

AU - Bosch, F. J.

AU - Boutin, D.

AU - Currell, J.

AU - Dimopoulou, C.

AU - Franzke, B.

AU - Gumberidze, A.

AU - Harman, Z.

AU - Jentschura, U. D.

AU - Keitel, C. H.

AU - Kluge, H. J.

AU - Kozhedub, S.

AU - Krücken, R.

AU - Yu A Litvinov, A Litvinov

AU - Nolden, F.

AU - O'Rourke, B.

AU - Reuschl, R.

AU - Schippers, S.

AU - Shabaev, M.

AU - Spillmann, U.

AU - Stachura, Z.

AU - Steck, M.

AU - Stöhlker, Th

AU - Tupitsyn, I. I.

AU - Winters, D. F.A.

AU - Wolf, A.

PY - 2009/1/1

Y1 - 2009/1/1

N2 - The study of isotope shifts and hyperfine effects in dielectronic recombination (DR) resonance spectra strikes a conceptually new path for investigations of nuclear properties such as charge radius, spin, magnetic moment of nuclei or lifetimes of long-lived excited nuclear states. A series of DR experiments with heavy three-electron ions (Li-like) was performed at the heavy-ion storage ring ESR of the GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany. In a pilot experiment the two stable isotopes A=142 and A=150 of neodymium ANd57+ were investigated. From the displacement of DR resonances the isotope shifts δE142,150(2s - 2Pl/2) 40.2(3)(6) meV and δE142,150(2s - 2p3/2) 42.3(12)(20) meV for 2s - 2Pj transitions of the Li-like ions have been obtained. An evaluation within a full QED framework yielded a change in the mean-square charge radius of 142,150δ(r2) -1.36(1)(3) fm2. At GSI, in addition to stable isotopes, in-flight synthesized radioisotopes can be studied as well. The production of radioisotopes of interest, the subsequent separation in the storage ring ESR and first DR experiments with the exotic nuclei 237U89+ and 234Pa88+ (Z=91) are presented. The paper is concluded with a brief outlook at future DR experiments with heavy radioisotopes at the ESR.

AB - The study of isotope shifts and hyperfine effects in dielectronic recombination (DR) resonance spectra strikes a conceptually new path for investigations of nuclear properties such as charge radius, spin, magnetic moment of nuclei or lifetimes of long-lived excited nuclear states. A series of DR experiments with heavy three-electron ions (Li-like) was performed at the heavy-ion storage ring ESR of the GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany. In a pilot experiment the two stable isotopes A=142 and A=150 of neodymium ANd57+ were investigated. From the displacement of DR resonances the isotope shifts δE142,150(2s - 2Pl/2) 40.2(3)(6) meV and δE142,150(2s - 2p3/2) 42.3(12)(20) meV for 2s - 2Pj transitions of the Li-like ions have been obtained. An evaluation within a full QED framework yielded a change in the mean-square charge radius of 142,150δ(r2) -1.36(1)(3) fm2. At GSI, in addition to stable isotopes, in-flight synthesized radioisotopes can be studied as well. The production of radioisotopes of interest, the subsequent separation in the storage ring ESR and first DR experiments with the exotic nuclei 237U89+ and 234Pa88+ (Z=91) are presented. The paper is concluded with a brief outlook at future DR experiments with heavy radioisotopes at the ESR.

UR - http://www.scopus.com/inward/record.url?scp=74549223116&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/194/1/012023

DO - 10.1088/1742-6596/194/1/012023

M3 - Article

AN - SCOPUS:74549223116

VL - 194

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

M1 - 012023

ER -