Measurement of hyperfine transition rates in muonic 19F, 23Na, 31P, and natCl

T. P. Gorringe, B. L. Johnson, J. Bauer, M. A. Kovash, R. Porter, P. Gumplinger, M. D. Hasinoff, D. F. Measday, B. A. Moftah, D. S. Armstrong, D. H. Wright

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From the time dependence of the (μ-, nν) reaction we have determined the hyperfine transition rates for the muonic atoms of 19F, 23Na, and natCl, obtaining Λh=4.9±1.2 μs-1, 8.4±1.9 μs-1, and 6.5±0.9 μs-1, respectively. Further, from the branching ratios of the (μ-1, ν) reaction on muonic 31P we have inferred a hyperfine transition rate that is much faster than the muon disappearance rate, Λh≫ΛD. These results are in reasonable agreement with the rates calculated for Auger emission, and qualitatively confirm the correction to the muonic atom's hyperfine splitting due to the distribution of magnetism in the nucleus. The 31P result, however, disagrees with an earlier suggestion of the inhibition of Auger emission.

Original languageEnglish
Pages (from-to)241-245
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number3-4
StatePublished - Jul 15 1993

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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