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Dielectronic Resonance Method for Measuring Isotope Shifts

Atomic Physics 2009-11-11 v1

Abstract

Longstanding problems in the comparison of very accurate hyperfine-shift measurements to theory were partly overcome by precise measurements on few-electron highly-charged ions. Still the agreement between theory and experiment is unsatisfactory. In this paper, we present a radically new way of precisely measuring hyperfine shifts, and demonstrate its effectiveness in the case of the hyperfine shift of 4s_1/24s\_{1/2} and 4p_1/24p\_{1/2} in 207Pb53+^{207}\mathrm{Pb}^{53+}. It is based on the precise detection of dielectronic resonances that occur in electron-ion recombination at very low energy. This allows us to determine the hyperfine constant to around 0.6 meV accuracy which is on the order of 10%.

Keywords

Cite

@article{arxiv.physics/0604005,
  title  = {Dielectronic Resonance Method for Measuring Isotope Shifts},
  author = {R. Schuch and E. Lindroth and S. Madzunkov and M. Fogle and T. Mohamed and Paul Indelicato},
  journal= {arXiv preprint arXiv:physics/0604005},
  year   = {2009}
}