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Disentanglement of magnetic field mixing reveals the spontaneous M2 decay rate for a metastable level in Xe+
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2005 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 72, no 2, 020501- p.Article in journal (Refereed) Published
Abstract [en]

We have investigated the radiative decay of the metastable level 5d(4)D(7/2) in Xe+. Theoretically we find the decay to be heavily dominated by an M2 transition and not by M1/E2 transitions. Lifetime measurements of 5d(4)D(7/2) in a storage ring are difficult since magnetic mixing of the metastable with a short-lived level quenches its population. Decay rates were determined at different magnetic field strengths (B) in order to allow a nonlinear extrapolation to B=0. The experimental lifetime of 2.4 +/- 0.8 s was in agreement with the calculated value, but much smaller than previously estimated.

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2005. Vol. 72, no 2, 020501- p.
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Physical Sciences
URN: urn:nbn:se:kth:diva-38474DOI: 10.1103/PhysRevA.72.020501ISI: 000231564200006ScopusID: 2-s2.0-27144541526OAI: diva2:437161
QC 20110826Available from: 2011-08-26 Created: 2011-08-26 Last updated: 2011-08-26Bibliographically approved

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Norlin, Lars-Olov
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Nuclear Physics
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