Hyperfine effect in μ- Capture on Na23 and gp/ga

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

doi:10.1103/PhysRevLett.72.3472

Hyperfine effect in μ- Capture on Na23 and gp/ga

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

Physics And Astronomy

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Abstract

We report measurements of the rates and hyperfine (HF) dependences of μ- capture on Na23, and the HF transition rate in Na metal. The measured capture rates are in general agreement with the predictions of the 1s-0d shell model. The measured HF dependences of the 1017 and 1823 keV γ rays from Ne23 yield gp/ga=7.6±2.52.1 and gp/ga≤7.1(1σ), consistent with partial conservation of axial-vector current, but in disagreement with claims of an enhancement of gp/ga in light nuclei. The measured HF transition rate Δh=15.5±1.1 μs-1 is in agreement with the theory of Auger emission but twice the rate previously obtained in NaF (a∼3σ effect).

Original language	English
Pages (from-to)	3472-3475
Number of pages	4
Journal	Physical Review Letters
Volume	72
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevLett.72.3472
State	Published - 1994

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Physics and Astronomy (all)

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10.1103/PhysRevLett.72.3472

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title = "Hyperfine effect in μ- Capture on Na23 and gp/ga",

abstract = "We report measurements of the rates and hyperfine (HF) dependences of μ- capture on Na23, and the HF transition rate in Na metal. The measured capture rates are in general agreement with the predictions of the 1s-0d shell model. The measured HF dependences of the 1017 and 1823 keV γ rays from Ne23 yield gp/ga=7.6±2.52.1 and gp/ga≤7.1(1σ), consistent with partial conservation of axial-vector current, but in disagreement with claims of an enhancement of gp/ga in light nuclei. The measured HF transition rate Δh=15.5±1.1 μs-1 is in agreement with the theory of Auger emission but twice the rate previously obtained in NaF (a∼3σ effect).",

author = "Gorringe, {T. P.} and Johnson, {B. L.} and Armstrong, {D. S.} and J. Bauer and Kovash, {M. A.} and Hasinoff, {M. D.} and Measday, {D. F.} and Moftah, {B. A.} and R. Porter and Wright, {D. H.}",

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doi = "10.1103/PhysRevLett.72.3472",

language = "English",

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pages = "3472--3475",

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T1 - Hyperfine effect in μ- Capture on Na23 and gp/ga

AU - Gorringe, T. P.

AU - Johnson, B. L.

AU - Armstrong, D. S.

AU - Bauer, J.

AU - Kovash, M. A.

AU - Hasinoff, M. D.

AU - Measday, D. F.

AU - Moftah, B. A.

AU - Porter, R.

AU - Wright, D. H.

PY - 1994

Y1 - 1994

N2 - We report measurements of the rates and hyperfine (HF) dependences of μ- capture on Na23, and the HF transition rate in Na metal. The measured capture rates are in general agreement with the predictions of the 1s-0d shell model. The measured HF dependences of the 1017 and 1823 keV γ rays from Ne23 yield gp/ga=7.6±2.52.1 and gp/ga≤7.1(1σ), consistent with partial conservation of axial-vector current, but in disagreement with claims of an enhancement of gp/ga in light nuclei. The measured HF transition rate Δh=15.5±1.1 μs-1 is in agreement with the theory of Auger emission but twice the rate previously obtained in NaF (a∼3σ effect).

AB - We report measurements of the rates and hyperfine (HF) dependences of μ- capture on Na23, and the HF transition rate in Na metal. The measured capture rates are in general agreement with the predictions of the 1s-0d shell model. The measured HF dependences of the 1017 and 1823 keV γ rays from Ne23 yield gp/ga=7.6±2.52.1 and gp/ga≤7.1(1σ), consistent with partial conservation of axial-vector current, but in disagreement with claims of an enhancement of gp/ga in light nuclei. The measured HF transition rate Δh=15.5±1.1 μs-1 is in agreement with the theory of Auger emission but twice the rate previously obtained in NaF (a∼3σ effect).

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ER -

Hyperfine effect in μ- Capture on Na23 and gp/ga

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