149ER 149ER IT DECAY (9.6 S) 1989FI01,1985TO11 22NDS 202210
149ER H TYP=FUL$AUT=Balraj Singh and Jun Chen$CIT=NDS 185, 2 (2022)$
149ER2 H CUT=23-Aug-2022$
149ER c 1989Fi01: {+149m}Er ions were produced by the {+94}Mo({+58}Ni,2pn)
149ER2c reaction with 242 MeV (center of target) {+58}Ni beam from the Lawrence
149ER3c Berkeley Laboratory SuperHILAC, separated with the OASIS facility
149ER4c online and collected on a moving tape of the counting station. |g rays
149ER5c were detected with a HPGe and two n-Ge detectors; charged particles
149ER6c were detected with a Si |DE-E telescope on one side of the tape and a
149ER7c plastic scintillator on the other side. Measured E|g, I|g,
149ER8c E(x-ray), I(x-ray), |g|g-coin, |g(t), |b-delayed proton spectra.
149ER9c Deduced levels, T{-1/2}, conversion coefficients, |g-ray
149ERAc multipolarities.
149ER c 1985To11: same setup and reaction as 1989Fi01, but with E({+58}Ni)=262
149ER2c MeV at the center of target. Measured E|g, I|g, E(x-ray), I(x-ray),
149ER3c |g|g-coin. Deduced levels, conversion coefficients, |g-ray
149ER4c multipolarities.
149ER cG RI$From 1989Fi01, relative to 100 for 1171|g from {+149}Er |e decay
149ER2cG (8.9 s)
149ER cG M$From ce data in 1989Fi01 and 1985To11. Assignments are adopted in
149ER2cG the Adopted Gammas.
149ER cL J,T$From the Adopted Levels
149ER P 741.69 23(11/2-) 9.6 S 6
149ER cP E,J,T$From the Adopted Levels
149ER N 2.61 27 0.035 7
149ER cN NR$From I(|g+ce)(630.5|g)=100 for per 100 decays through this branch.
149ER cN BR$%IT=3.5 {I7}, %|e=96.5 {I7} (1989Fi01). Other: %IT=2.7 (1985To11)
149ER PN 3
149ER L 0.0 (1/2+) 4 S 2
149ER L 111.0 1 (3/2+)
149ER cL E$from E|g=111.0 {I1}
149ER G 111.0 1 12 2 M1 2.110 30 C
149ER2 G EKC=1.82 11 (1989Fi01)$ EKC=1.8 2 (1985To11)
149ERS G KC=1.770 25$LC=0.265 4$MC=0.0588 8
149ERS G NC=0.01372 20$OC=0.001983 28$PC=0.0001092 16
149ER2 G %IG=1.10 31
149ER cG E$from 1985To11. Other: 111.3 {I3} from 1989Fi01
149ER L 741.69 23(11/2-) 9.6 S 6 M1
149ER cL E,J,T$from the Adopted Levels. Other: E(level)=741.5 {I2} from
149ER2cL 630.5|g+111.0|g
149ER cL T$value from this study: 8.9 s {I2} from 1989Fi01.
149ER G 630.5 2 29 3 M4 0.320 4 C
149ER2 G EKC=0.27 3 (1989Fi01)$ EKC=0.3 1 (1985To11)
149ERS G KC=0.2432 34$LC=0.0590 8$MC=0.01395 20
149ERS G NC=0.00326 5$OC=0.000451 6$PC=2.053E-5 29
149ER2 G %IG=2.7 5
149ER cG E$from 1989Fi01. Other: 630.5 {I3} from 1985To11
149ER cG RI$1989Fi01 give I|g=36 but note that I|g=7 {I3} belongs to a |g from
149ER2cG {+149}Ho decay. Other: I(631|g)/I(111|g)=248 {I25}/100 (1985To11)