61ZN 61GA EC DECAY (167 MS) 1999OI01,2002WE07 15NDS 201503
61ZN H TYP=FUL$AUT=KAZIMIERZ ZUBER, BALRAJ SINGH$CIT=NDS 125, 1 (2015)$
61ZN2 H CUT=25-Jan-2015$
61ZN c 1999Oi01: {+61}Ga source produced in fusion-evaporation reaction using
61ZN2c a 121-MeV {+36}Ar beam from the heavy-ion accelerator UNILAC at GSI
61ZN3c and 1.9 mg/cm{+2} natural Si-target. Evaporation residues were stopped
61ZN4c in FEBIAD-B2-C ion source and mass separated by on-line mass
61ZN5c separator. Using two Ge detectors, cylindrical plastic
61ZN6c scintillator for detection positrons and 2 mm thick plastic
61ZN7c scintillator in front of Ge detectors. Measured |b-gated
61ZN8c |g spectrum, E|g, I|g, I|b, |g(t),|b(t).
61ZN c 2002We07: isotopes were produced in spallation reactions induced by a
61ZN2c pulsed beam of 1.4 GeV protons from the CERN PS-booster and impinging
61ZN3c on a zirconium oxide target (8 g/cm{+2} of Zr). Ionization of Ga atoms
61ZN4c was performed using the Resonance Ionization Laser Ion Source
61ZN5c (RILIS). Ions are accelerated by a 60 kV voltage and mass separated
61ZN6c using the high-resolution mass separator (HRS). Measured |b(t), |b|g
61ZN7c coin, half-life, deduced Q(|e) and S(p). Beta Gamow-Teller strength
61ZN8c calculations in large-scale shell-model using the Strasbourg code
61ZN9c ANTOINE and the effective interaction KB3G.
61ZN c Others:
61ZN c 2014Ro14: measured half-life of {+61}Ga g.s.
61ZN c 1993Wi18: Using the A1200 (achromatic projectile fragment
61ZN2c separator) radioactive beam facility at the NSCL of Michigan State
61ZN3c University. The radioactive isotopes was produced by fragmentation of
61ZN4c E=75 MeV/nucleon {+78}Kr beam by 98% enriched {+58}Ni target a thin
61ZN5c (3 mg/cm{+2}) aluminum backing. Using Si detector telescope and |b
61ZN6c segmented plastic scintillator, measured half-life.
61ZN c From RADLIST code, deduced total decay energy is 9236 keV {I98}
61ZN2c agrees with 9210 keV {I40} from Q(|e) value.
61ZN CE $Experimental and theoretical ^Gamow-^Teller (^B(^GT)) strengths
61ZN2CE listed here are from 2002We07
61ZN CG E,RI$ From 2002We07 unless otherwise stated
61ZN CG E(B)$ From 1999Oi01. The corresponding value in 2002We07 is given
61ZN2CG without uncertainty
61ZN CG E(A),RI(A)$ 2002We07 quote energy from high-spin studies by 1982Sm01
61ZN2CG and 1984Th07. This |g not observed in 2002We07, only an upper limit of
61ZN3CG intensity is given
61ZN cG M,MR$From Adopted Gammas
61ZN cL $Note that in 1999-NDS (1999Bh04), 88.2, 418.3, and 756.0 levels
61ZN2cL were erroneously assigned half-lives of <430 ms, 0.14 s {I7} and
61ZN3cL <130 ms, respectively. These half-lives in 1999Oi01 simply refer to
61ZN4cL the half-life of the decaying {+61}Ga isotope
61ZN CL E$From a least-squares fit to the E|g data
61ZN cL J$From Adopted Levels
61GA P 0.0 3/2- 167 MS 3 9210 40
61GA cP J,T$From {+61}Ga Adopted Levels
61GA cP QP$From 2012Wa38
61ZN N 0.019 4 1 1
61ZN CN NR$Summed transition intensity=6 1, based on level scheme of 2002We07
61ZN2CN with I(|e+|b{++})(g.s.)=94.0% {I10} and upper limit for the delayed
61ZN3CN proton emission probability of 0.25% (2002We07).
61ZN PN 3
61ZN L 0.0 3/2-
61ZN E 93.9 10 0.120 2 3.7 94.0 10
61ZNS E EAV=3879 20$CK=0.001127 17$CL=0.0001240 1$CM+=2.20E-5 4
61ZN CE $(^B(^GT)){-exp}=0.28 {I7} (^B(^GT)){-theor}=0.35
61ZN L 88.2 7 1/2-
61ZN E 1.9 6 0.0025 8 5.4 1.9 6
61ZNS E EAV=3835 20$CK=0.001164 18$CL=0.0001280 1$CM+=2.28E-5 4
61ZN CE $(^B(^GT)){-exp}=0.04 {I1} (^B(^GT)){-theor}=0.0068.
61ZN G 87.6 10 100 16 (M1+E2) 0.2 AP 0.126 21 B
61ZN cG CC$assuming 25% uncertainty on |d(E2/M1)
61ZNS G KC=0.112 19 $LC=0.0125 23$ MC=0.0018 4$ NC=6.3E-5 10
61ZN CG MR$2002We07 suggest MR=0.2 or 3.8 based on A2=-0.03 3 for the 88|g in
61ZN2CG G(THETA) data from 1982Sm01. Lower value is adopted here, higher
61ZN3CG value will suggest a long lifetime for the level
61ZN dG RI$100 {I28} (1999Oi01).
61ZN L 123.3 7 5/2-
61ZN E 1.2 4 0.0016 5 5.5 1.2 4
61ZNS E EAV=3818 20$CK=0.001179 18$CL=0.0001297 2$CM+=2.31E-5 4
61ZN CE $(^B(^GT)){-exp}=0.02 {I1} (^B(^GT)){-theor}=0.0012.
61ZN G 122.9 10 62 11 M1+E2 -0.05 2 0.0352 8 B
61ZN dG RI$48 {I12} (1999Oi01)
61ZN cG MR$from Adopted Gammas
61ZN L 418.3 6 3/2-
61ZN E 1.3 4 0.0019 6 5.4 1.3 4
61ZNS E EAV=3672 20$CK=0.001316 21$CL=0.0001448 2$CM+=2.57E-5 4
61ZN CE $(^B(^GT)){-exp}=0.02 {I1} (^B(^GT)){-theor}=0.0034.
61ZN G 295.5 2 LE (M1+E2) -0.44 37 0.0051 19 A ?
61ZN G 330 4 1 (M1+E2) +0.27 13 0.0032 4
61ZN G 418.4 8 72 12 M1+E2 -0.10 5 B
61ZN dG RI$40 {I6} (1999Oi01)
61ZN L 756.0 7 5/2-
61ZN E 0.86 24 0.0015 4 5.5 0.86 24
61ZNS E EAV=3506 20$CK=0.001501 25$CL=0.000165 3$CM+=2.94E-5 5
61ZN CE $(^B(^GT)){-exp}=0.02 {I1} (^B(^GT)){-theor}=0.00033
61ZN G 337.5 2 LE A ?
61ZN G 633 1 LE A ?
61ZN G 754.5 12 44 8 M1+E2 -0.07 4 B
61ZN dG RI$32 {I5} (1999Oi01)
61ZN L 938.2 7 1/2-
61ZN E 0.68 18 0.0012 3 5.6 0.68 18
61ZNS E EAV=3416 20$CK=0.00161 3$CL=0.000178 3$CM+=3.16E-5 6
61ZN CE $(^B(^GT)){-exp}=0.2 {I1} (^B(^GT)){-theor}=0.18
61ZN G 520 9 2
61ZN G 850 6 2
61ZN G 938 21 4
61ZN dG RI$LE 4 (1999Oi01) seems erroneous
61ZN L 1362.0 10 ?
61ZN E 0.010 LE 2.E-5 LE 7.3 GE 0.01 LE ?
61ZNS E EAV=3208 20$CK=0.00193 4$CL=0.000212 4$CM+=3.77E-5 7
61ZN G 1362 0.5 LE A ?
61ZN dG RI$LE 5 (1999Oi01)