23NA 23MG EC DECAY 2017MA18,1974MA41 21NDS 202101
23NA H TYP=FUL$AUT=M.S. Basunia{+#}, A. Chakraborty{+##}$
23NA2 H CIT=NDS 171, 1 (2021)$CUT=1-Jun-2020$
23NA c Others: 1960Ta14, 1968Go05, 1971De05, 1974Al03, 1977Az01
23NA c 2017Ma18: {+23}Mg was produced from {+23}Na(p,n) reaction, E=15,30 MeV;
23NA2c After mass separation, {+23}Mg nuclides (contaminated only by {+23}Na)
23NA3c were transported to the yield station and deposited on a Mylar tape (50
23NA4c |mm thickness and 1.25 cm width) for |b particle and |g ray detection
23NA5c by plastic scintillator and HPGe detectors. The plastic scintillator
23NA6c was read out by two photomultipliers (PMs). The coincidence signals of
23NA7c these PMs were used to count the |b+ particles and to trigger the
23NA8c data acquisition of the HPGe detector. Measured {+23}Mg half-life from
23NA9c |b(t), 440|g absolute emission probability, and deduced
23NAac super-allowed |b-transition branch g.s. to g.s. from feedings of
23NAbc {+23}Na excited states.
23NA c 1974Ma41: {+23}Mg produced from {+23}Na(p,n), Ep=10~MeV, reaction.
23NA2c Measured |g-ray branching, beta feedings.
23MG P 0.0 3/2+ 11.3046 S 45 4056.179 32
23MG cP QP$From 2017Wa10 (2016-ame). Measured value: 4056.182~{I32} (2019Ka30)
23NA N 1.0 1.0 1.0
23NA PN 3
23NA cL E,J$From Adopted Levels.
23NA cG E$From Adopted Gammas.
23NA cG RI(A)$From |e feeding and adopted |g-ray branching intensities
23NA L 0.0 3/2+ STABLE
23NA E 92.08 11 0.0681 7 3.6675 6 92.15 11
23NAS E EAV=1353.91$CK=0.0006797$CL=5.807E-5$CM+=1.721E-6
23NA cE $Deduced by the evaluators (100 - g.s. feeding branch of 440.5|g.
23NA2cE Other: 92.08 {I14} (2017Ma18 - considering literature and their
23NA3cE measured data).
23NA L 440.2 4 5/2+
23NA E 7.84 11 0.0092716 4.434 6 7.85 11
23NAS E EAV=1143.84 19$CK=0.0010849 5$CL=9.270E-5 5$CM+=2.747E-6 2
23NA cE I(|e+|b{++}) - from |g intensity balance.
23NA G 440.5 6 7.85 11
23NA cG RI$Weighted average of 8.6 {I3} (1968Go05), 8.1 {I4} (1974Ma41),
23NA2cG 7.79 {I15} (1977Az01), and 7.805 {I81} (2017Ma18).
23NA3cG Other values: 9.1 {I5} (1960Ta14), 9.1 {I4} (1974Al03) -
23NA4cG discrepant data omitted in the wt. average. 6 {I3} (for rough check
23NA5cG in 1971De05).
23NA L 2390.9 3 1/2+
23NA E 0.006 1 0.0006 1 4.97 7 0.007 1
23NAS E EAV=257.56 13$CK=0.07526 11$CL=0.006435 9$CM+=0.0001907 3
23NA cE I(|e+|b{++}) - from 1974Ma41.
23NA G 1950.6 4 0.0025 7 A
23NA G 2390.6 4 0.0044 7 A