TY - JOUR
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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U2 - 10.1103/PhysRevLett.72.3472
DO - 10.1103/PhysRevLett.72.3472
M3 - Article
AN - SCOPUS:0000136226
SN - 0031-9007
VL - 72
SP - 3472
EP - 3475
JO - Physical Review Letters
JF - Physical Review Letters
IS - 22
ER -