76GA 76ZN B- DECAY (5.7 S) 1986EK01,2022CH09 24NDS 202401
76GA H TYP=FUL$AUT=Balraj Singh, Jun Chen and Ameenah R. Farhan$
76GA2 H CIT=NDS 194, 3 (2024)$CUT=8-Jan-2024$
76GA DB EAV,LOGFT$FROM BetaShape v2.3.1 (Dec-2023) 2023MO21.
76GA c 1986Ek01: {+76}Zn produced as a fission fragment at the OSIRIS-ISOL
76GA2c in Studsvik. Measured E|g, I|g, |g|g-coin and |b|g-coin
76GA c 2022Ch09: {+76}Zn activity obtained as daughter of {+76}Cu decay,
76GA2c the latter produced in {+9}Be({+86}Kr,X),E=140 MeV/nucleon, and
76GA3c {+76}Cu fragments separated by A1900 fragment separator at
76GA3c NSCL-MSU. Separated {+76}Cu ion beam was delivered to an experimental
76GA4c station consisting of three Si detectors for particle identification
76GA5c based on |DE-tof measurement. The ion beam was finally implanted in a
76GA6c CeBr{-3} scintillator detector, coupled to a position-sensitive
76GA7c photomultiplier tube (PSPMT). Measured E|g, I|g, |g|g(t) and |b|g(t),
76GA8c half-life of a new isomer at 199 keV. Comparison with shell-model
76GA9c calculations.
76GA c Others:
76GA c 1981Ru07: |g-spectrum of A=76 nuclides
76GA c 1977Al17: |b|g-coin data for four gate positions
76GA c 1975Al11, 1984Ha58: |b{+-} strength functions
76GA c 1988BaZX, 1981Gi17, 1974Gr29, 1970OsZZ: T{-1/2} ({+76}Zn) and
76GA2c isotope production
76GA c |b{+-} systematics: 1983Be56
76GA cB IB$From |g+ce intensity balance at each level
76GA cG E,RI$From 1986Ek01. 2022Ch09 report data for only 12 |g rays, taking
76GA2cG E|g values from 1986Ek01. Intensities in 2022Ch09 seem to be nominal
76GA3cG values which are listed under comments
76GA cG M(a)$From the decay scheme in Fig.6 of 1986Ek01, probably deduced by
76GA2cG the authors based on their measured ce data which however are not
76GA3cG given in the paper
76GA cL E$From a least-squares fit to E|g data.
76GA cL J$From Adopted Levels
76ZN P 0.0 0+ 5.7 S 3 3993.6 24
76ZN cP T$From {+76}Zn Adopted Levels
76ZN cP QP$From 2021Wa16
76GA N 0.786 14 1.0 1.0
76GA cN NR$Summed transition intensity to g.s.=99.85 {I15}, assuming <0.3%
76GA2cN feeding to the g.s. consistent with log {If{+1u}t}>8.5 for first
76GA2cN forbidden unique (0+ to 2(-)) |b transition
76GA PN 3
76GA L 0.0 2(-) 30.5 S 4
76GA B 0.3 LT 8.5 GT 1U?
76GAS B EAV=1755.3 11
76GA L 172.29 3 (1+,2+,3+)
76GA B 0.8 5 6.4 +4-2 ?
76GAS B EAV=1670.5 12
76GA G 172.44 5 9.6 3 (D) 0.014 2 aC
76GA L 199.50 3 1+ 34 NS 8
76GA cL T$34 ns {I1}(stat) {I8}(syst) from 2022Ch09, weighted average of
76GA2cL 33.9 ns {I11} from (|g rays in coin with the 199|g)(199|g)(t)
76GA3cL and 30 ns {I4} from |b|g(t). Evaluators combined statistical and
76GA4cL systematic uncertainties in quadrature
76GA cL $Structure of this isomeric state is proposed as a highly-mixed state
76GA2cL of negative-parity proton configurations coupled to 1/2- neutron
76GA3cL configurations (2022Ch09)
76GA B 33 6 4.75 +11-10 C
76GAS B EAV=1657.4 12
76GA cB E$3720 {I140} from (199|g)|b-coin (1977Al17)
76GA G 199.2 5 100 2 (E1) 0.0081513 aC
76GA cG $I|g=100 (2022Ch09)
76GA cG $B(E1)=0.016|*10{+-6} e{+2}b {I1}(stat) {I4}(syst) (2022Ch09)
76GA L 275.28 3 1+
76GA B 29 5 4.77 +11-9
76GAS B EAV=1621.0 12
76GA G 75.9 5 32 5 (M1) 0.149 aC
76GAS G KC=0.132 3 $ LC=0.0141 4 $ MC=0.00207 5 $NC=0.000109 3
76GA G 102.88 5 1.7 2 (E2) 0.629 aC
76GAS G KC=0.551 8 $ LC=0.0682 10 $ MC=0.00985 14 $NC=0.000423 6
76GA G 275.34 5 6.4 4 C
76GA L 281.57 3
76GA B 2.7 21 5.8 +7-3 ?
76GAS B EAV=1618.0 12
76GA G 82.1 3 3.6 3 [D,E2] 0.8 7 C
76GA cG $|g not observed by 2022Ch09
76GA G 109.23 8 0.6 1 [D,E2] 0.28 23 C
76GA G 281.56 5 4.0 3 C
76GA L 369.81 6
76GA B 0.4 LT 6.6 GT ?
76GAS B EAV=1575.7 12
76GA G 88.3 2 0.3 1 [D,E2] 0.8 7 C
76GA G 94.53 5 0.9 1 [D,E2] 0.5 4 C
76GA cG $|g not observed by 2022Ch09
76GA L 565.53 3 1+
76GA B 11.0 6 5.03 5 C
76GAS B EAV=1481.9 11
76GA cB E$3540 {I190} from (366|g)|b-coin (1986Ek01). Others: from
76GA2cB (290|g)|b-coin, E|b=3460 {I250} (1986Ek01), 3420 {I610} (1977Al17).
76GA3cB From (366|g)|b-coin, E|b=3530 {I210} (1977Al17)
76GA G 290.23 8 1.2 2 C
76GA G 365.98 5 9.7 4 C
76GA cG $I|g=8.8 {I12} (2022Ch09)
76GA G 393.20 5 1.6 3 C
76GA G 565.52 5 2.0 3 C
76GA L 680.83 3
76GA B 0.59 18 6.24 +18-14
76GAS B EAV=1426.8 11
76GA G 405.5 1 0.10 3 C
76GA G 481.42 5 0.40 4 C
76GA G 508.8 2 1.0 2 C
76GA G 680.70 4 0.20 3 C
76GA cG E$somewhat poor fit in the level scheme, level-energy difference=680.82
76GA L 781.55 5
76GA B 0.10 4 6.95 +25-17
76GAS B EAV=1378.7 11
76GA G 609.29 5 0.33 3
76GA L 1030.30 3 1+
76GA B 10.7 5 4.77 4 C
76GAS B EAV=1260.1 11
76GA cB E$3120 {I90} from (858|g)|b-coin (1986Ek01). Others from 1986Ek01:
76GA2cB 3100 {I100}, 3210 {I170}, 3190 {I120}, 3190 {I190} for gates at 749|g,
76GA3cB 755|g, 831|g, 1030|g, respectively. From (282|g)|b-coin,
76GA4cB E|b=2770 {I370} (1977Al17). In 1977Al17,
76GA5cB 282|g was incorrectly placed from a 1312 level
76GA G 748.72 5 3.7 4 C
76GA cG $I|g=1.5 {I4} (2022Ch09)
76GA G 755.03 2 5.3 3 C
76GA cG $I|g=4.6 {I9} (2022Ch09)
76GA G 830.7 5 2.2 2 C
76GA cG $I|g=1.9 {I5} (2022Ch09)
76GA G 857.98 5 1.5 2 C
76GA G 1030.26 5 0.92 5
76GA L 1106.03 8 (1)
76GA B 0.16 3 6.55 +11-10
76GAS B EAV=1224.2 11
76GA G 736.21 6 0.20 3 C
76GA L 1545.44 3 1+
76GA B 4.1 3 4.83 6 C
76GAS B EAV=1016.5 11
76GA cB E$2630 {I220} from (1346|g)|b-coin (1986Ek01). Others from 1986Ek01:
76GA2cB 2570 {I110}, 2530 {I180} for gates at 1545|g, 1264|g, respectively
76GA G 763.9 1 0.04 2 C
76GA G 864.59 5 0.40 5 C
76GA G 979.85 5 0.38 5 C
76GA G 1263.89 5 1.6 2 C
76GA cG $I|g=0.9 {I3} (2022Ch09)
76GA G 1345.94 5 1.8 2 C
76GA cG $I|g=2.6 {I6} (2022Ch09)
76GA G 1373.1 1 0.07 2 C
76GA G 1545.48 5 0.98 5
76GA L 1568.12 4 1+
76GA B 0.97 6 5.44 5 C
76GAS B EAV=1005.8 11
76GA cB E$2730 {I160} from (1286|g)|b-coin (1986Ek01)
76GA G 786.5 1 0.04 2 C
76GA G 1286.53 5 0.73 5 C
76GA cG $I|g=0.6 {I3} (2022Ch09)
76GA G 1368.59 4 0.31 3 C
76GA G 1395.94 7 0.15 2 C
76GA L 1621.22 8 (1+)
76GA B 0.36 4 5.83 +8-7
76GAS B EAV=980.9 11
76GA G 1251.40 5 0.46 5 C
76GA L 1750.14 3 1+
76GA B 2.00 11 4.98 5 C
76GAS B EAV=920.5 11
76GA cB E$2440 {I140} from (1468|g)|b-coin (1986Ek01). Other: 2400 {I210} from
76GA2cB (1069|g)|b-coin (1986Ek01)
76GA G 968.7 2 0.07 1 C
76GA G 1069.22 5 0.45 5 C
76GA G 1184.49 8 0.13 3 C
76GA G 1468.53 5 1.2 1 C
76GA cG $I|g=0.9 {I3} (2022Ch09)
76GA G 1550.60 7 0.18 2 C
76GA G 1578.00 5 0.28 3 C
76GA cG E$somewhat poor fit in the level scheme, level-energy
76GA2cG difference=1577.82
76GA G 1750.06 6 0.23 2
76GA L 1810.50 6 (1+)
76GA B 0.31 4 5.74 8
76GAS B EAV=892.3 11
76GA G 1610.99 5 0.39 5 C
76GA L 1825.99 7 1+
76GA B 0.86 16 5.29 +11-10 C
76GAS B EAV=885.1 11
76GA cB E$2380 {I220} from (1456|g)|b-coin (1986Ek01)
76GA G 1456.16 4 1.1 2 C
76GA cG $I|g=1.5 {I4} (2022Ch09)
76GA L 1896.05 6 (1)
76GA B 0.13 2 6.05 +10-9
76GAS B EAV=852.5 11
76GA G 1723.74 5 0.17 2 C
76GA L 1977.41 6 (1+)
76GA B 0.24 4 5.71 +10-9
76GAS B EAV=814.8 11
76GA G 1695.7 1 0.09 3 C
76GA G 1702.12 9 0.14 2 C
76GA G 1977.5 1 0.08 2
76GA L 2091.02 4 1+
76GA B 2.1 2 4.66 7 C
76GAS B EAV=762.3 11
76GA cB E$1980 {I170} from (2091|g)|b-coin (1986Ek01)
76GA G 1309.6 1 0.05 2 C
76GA G 1410.2 1 0.10 2 C
76GA G 1815.62 5 0.88 5 C
76GA cG $I|g=1.4 {I5} (2022Ch09)
76GA G 1918.9 1 0.09 2 C
76GA G 2091.0 1 1.6 2 C
76GA L 2166.64 12 (1+)
76GA B 0.16 2 5.71 8
76GAS B EAV=727.5 11
76GA G 1796.8 1 0.21 2 C
76GA L 2422.73 11 1+
76GA B 0.17 2 5.42 +8-7
76GAS B EAV=610.9 11
76GA G 2223.2 1 0.22 2 C
76GA L 2602.44 11 1+
76GA B 0.13 2 5.32 +10-9
76GAS B EAV=530.3 11
76GA G 2402.9 1 0.16 2 C