Muon capture, continuum random phase approximation, and in-medium renormalization of the axial-vector coupling constant
- 1 November 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review C
- Vol. 50 (5) , 2576-2581
- https://doi.org/10.1103/physrevc.50.2576
Abstract
We use the continuum random phase approximation to describe the muon capture on C-12, O-16 and Ca-40. We reproduce the experimental total capture rates on these nuclei to better than 10% using the free nucleon weak form factors and two different residual interactions. However, the calculated rates for the same residual interactions are significantly lower than the data if the in-medium quenching of the axial-vector coupling constant is employed.Comment: 14 pages + 3 figures (postscript files attached), Caltech preprint #MAP-174 (May 1994Keywords
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