TY - JOUR
T1 - Measurement of partial muon capture rates in [Formula Presented] shell nuclei
AU - Gorringe, T. P.
AU - Armstrong, D. S.
AU - Arole, S.
AU - Boleman, M.
AU - Gete, E.
AU - Kuzmin, V.
AU - Moftah, B. A.
AU - Sedlar, R.
AU - Stocki, T. J.
AU - Tetereva, T.
PY - 1999
Y1 - 1999
N2 - We report yields for 38 γ-ray lines and 29 [Formula Presented] transitions following negative muon capture on [Formula Presented] [Formula Presented] and [Formula Presented] Our results substantially increase the world data set for partial [Formula Presented] transitions on [Formula Presented] shell nuclei. They also resolve a number of inconsistencies between previously published γ-ray yields and accepted γ-decay branching ratios. We compare the measured capture rates for the allowed Gamow-Teller (GT) transitions (supplemented with earlier [Formula Presented] data) with a shell model calculation using the full [Formula Presented] space and universal SD interaction. We find a “best fit” value of the effective weak axial coupling of [Formula Presented] fair agreement for the per-target summed GT capture rates, but poor agreement for the individual GT capture rates. By replacing the shell model [Formula Presented] matrix element values with experimentally determined [Formula Presented] matrix element values, improved predictions for the individual GT capture rates are obtained. Last, we comment on recent determinations of the weak coupling [Formula Presented] via muon capture on [Formula Presented] shell nuclei.
AB - We report yields for 38 γ-ray lines and 29 [Formula Presented] transitions following negative muon capture on [Formula Presented] [Formula Presented] and [Formula Presented] Our results substantially increase the world data set for partial [Formula Presented] transitions on [Formula Presented] shell nuclei. They also resolve a number of inconsistencies between previously published γ-ray yields and accepted γ-decay branching ratios. We compare the measured capture rates for the allowed Gamow-Teller (GT) transitions (supplemented with earlier [Formula Presented] data) with a shell model calculation using the full [Formula Presented] space and universal SD interaction. We find a “best fit” value of the effective weak axial coupling of [Formula Presented] fair agreement for the per-target summed GT capture rates, but poor agreement for the individual GT capture rates. By replacing the shell model [Formula Presented] matrix element values with experimentally determined [Formula Presented] matrix element values, improved predictions for the individual GT capture rates are obtained. Last, we comment on recent determinations of the weak coupling [Formula Presented] via muon capture on [Formula Presented] shell nuclei.
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U2 - 10.1103/PhysRevC.60.055501
DO - 10.1103/PhysRevC.60.055501
M3 - Article
AN - SCOPUS:85035291278
SN - 0556-2813
VL - 60
SP - 15
JO - Physical Review C - Nuclear Physics
JF - Physical Review C - Nuclear Physics
IS - 5
ER -