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arXiv · 1111.7317

Storage-ring measurement of the hyperfine-induced 2s 2p 3P0 -> 2s2 1S0 transition rate in beryllium-like sulfur

S. Schippers·D. Bernhardt·A. Müller·M. Lestinsky·M. Hahn·O. Novotný·D. W. Savin·M. Grieser·C. Krantz·R. Repnow·A. Wolf
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Abstract

The hyperfine induced 2s 2p 3P0 -> 2s2 1S0 transition rate in Be-like sulfur was measured by monitoring the decay of isotopically pure beams of 32-S12+ and 33-S12+ ions in a heavy-ion storage ring. Within the 4% experimental uncertainty the experimental value of 0.096(4)/s agrees with the most recent theoretical results of Cheng et al. [Phys. Rev. A 77, 052504 (2008)] and Andersson et al. [Phys. Rev. A 79, 032501 (2009)]. Repeated experiments with different magnetic fields in the storage-ring bending magnets demonstrate that artificial quenching of the 2s 2p 3P0 state by these magnetic fields is negligible.

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S. Schippers, D. Bernhardt, A. Müller, M. Lestinsky, M. Hahn, O. Novotný, D. W. Savin, M. Grieser, C. Krantz, R. Repnow, A. Wolf. 2011-11-30. Storage-ring measurement of the hyperfine-induced 2s 2p 3P0 -> 2s2 1S0 transition rate in beryllium-like sulfur. https://doi.org/10.1103/physreva.85.012513

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