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.

UR - http://www.scopus.com/inward/record.url?scp=85035291278&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85035291278&partnerID=8YFLogxK

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 -