159TB 159GD B- DECAY (18.479 H) 12NDS 201201
159TB H TYP=FUL$AUT=C. W. Reich$CIT=NDS 113, 157 (2012)$CUT=31-Dec-2010$
159TB D DATA SET UPDATED (JANUARY, 2011) BY CW REICH TO INCLUDE NEW QP VALUE,
159TB2D NEW CC VALUES, R~~~~~~~~~~~~ECALCULATED IB AND LOGFT VALUES.
159TB c The decay scheme is that of 1965Fu14, which is similar to those of
159TB2c 1968Hi03, 1969Br05, 1985Da31, and 1995Mo08.
159TB c The following quantities have been measured: E|g and I|g
159TB2c (1958Ma53,1958Ni29,1962Su04,1964Ew04,1964Pe07,1965Fu14,1972De67,1975SeZ
159TB3c D); T{-1/2} of levels (1961Go32,1963Go28,1967Ko17,1967Ma33,1969Be54);
159TB4c |g multipolarities and |d
159TB5c (1958Ma53,1958Ni29,1962Su04,1964No08,1964Pe07,1975SeZD); and E|b{+-}
159TB6c and I|b{+-} (1958Ma53,1962Ta12,1975BaXG).
159TB c Searches for parity nonconservation have been carried out
159TB2c (1970Pr13,1971Kr19,1971Li15,1972Li11) by measurements of |g(|q) and
159TB3c circular polarization of 363 G.
159TB d Experimental methods:
159TB d Sources made by 158TB(n,G), unless noted otherwise.
159TB d 1958Ma53: Measured B- and ce in magnetic spectrometer and G with
159TB2d NaI(Tl). Report ce for 6 G's, one K/L ratio, GG coin.,
159TB3d B-G coin.
159TB d 1958Ni29: Similar measurements. Report ce for 4 G's, two K/L
159TB2d ratios, and 5 IG's.
159TB d 1961Go32: Measured B-G coin. Report T1/2(362).
159TB d 1961Va36: Measured B-G coin. Report T1/2(363).
159TB d 1962Su04: Measured G singles and GG(THETA). Report 5 EG's and
159TB2d IG's, and |d(79,228).
159TB d 1962Ta12: Source from 160GD(G,n). Measured B-G coin.
159TB2d Report B- endpoints and B- intensity ratio.
159TB d 1963Go28: Measured GG(t). Report T1/2(136).
159TB d 1964No08: Measured ce in magnetic spectrometer. Report |d(58).
159TB d 1964Pe07: G's measured by G singles and by external conversion.
159TB2d Report 6 EG's and IG's, and one |a{-K}(exp).
159TB d 1965Fu14: Report 12 IG's.
159TB d 1967Ko17: Report T1/2(363).
159TB d 1967Ma33: Report T1/2(363).
159TB d 1968Hi03: G's measured on crystal spectrometer and Ge detectors.
159TB2d Report 16 EG's and 17 IG's.
159TB d 1969Be54: Measured B-G coin. Report T1/2(364).
159TB d 1969Br05: Reports same 17 G's as 1968Hi03.
159TB d 1970Pr13: Measured G(363,THETA) for oriented nuclei to search for
159TB2d parity nonconservation. Report |m.
159TB d 1971Kr19: Measured G(363,THETA) from oriented nuclei. Report
159TB2d |m, |d(226,348,363).
159TB d 1972De67: Measured EG(58).
159TB d 1972Li11: Measured circular polarization of 363 G in search for
159TB2d parity nonconservation.
159TB d 1975BaXG: Report EB-, IB-, EG, and IG.
159TB d 1975SeZD: Report 4 EG's and IG's and 2 |a{-K}(exp).
159TB d 1985Da31: Report 22 EG and IG.
159TB d 1994MoZZ: Measured E and RI for 21 G's. Replaced by 1995Mo08.
159TB d 1995Mo08: Measured precise E and RI for 21 G's.
159TB cB E$The measured values from 1975BaXG are about 11~keV lower than those
159TB2cB from the Q(|b{+-}) value; they are not given.
159TB cB IB$From |g(363) emission probability (2001Ma01) and |g intensity
159TB2cB balances. The measured values of 1975BaXG are given in comments.
159TB cG E$From 1995Mo08.
159TB cG RI$Weighted average of values of 1968Hi03, 1969Br05, 1985Da31,
159TB2cG 1994St05, 1995Mo08, and 2001Ma01.
159TB cG M,MR$From {+159}Tb Adopted |g radiations. See {+159}Tb Adopted |g
159TB2cG radiations for limits on M2 mixing in E1 transitions from 363 level.
159TB cL E$From least-squares fit to the |g energies.
159TB cL J$From {+159}Tb Adopted Levels; also see Adopted Levels for band
159TB2cL assignments.
159TB cL T$From measurements from {+159}Gd |b{+-} decay only; see {+159}Tb
159TB2cL Adopted Levels for all measurements.
159GD P 0 3/2- 18.479 H 4 970.5 7
159TB N 0.1178 5 1.0 1.0
159TB cN NR$from measured emission probability of 11.78% {I5} for the 363 |g
159TB2cN (2001Ma01).
159TB dN NR calculated to give 100% feeding to ground state, with
159TB2dN I(B-,0)=62% {I9} (1975BaXG). NR=0.106 (27)
159TB PN 3
159TB G 479.84 6 0.00206 19
159TB cG E,RI$Reported by 1995Mo08 only, so nuclide assignment is questionable.
159TB L 0.0 3/2+
159TB B 58.6 10 6.75 1
159TBS B EAV=326.9 3
159TB cB IB$Measured I|b{+-}=62% {I9} (1975BaXG).
159TB L 57.9963 14 5/2+
159TB B 28.8 10 6.96 2 C
159TBS B EAV=304.1 3
159TB cB IB$Measured I|b{+-}=24% {I4} (1975BaXG).
159TB G 58.0000 22 21.1 6 M1+E2 +0.119 2 10.73 C
159TBS G KC=8.80 13$LC=1.503 22$MC=0.333 5$NC+=0.0886 13
159TBS G NC=0.0765 12$OC=0.01146 17$PC=0.000663 10
159TB L 137.5054 17 7/2+ 1.0 NS LE
159TB cL T$From 1963Go28 by |g(228)|g(79)(t).
159TB B 0.008 7 10.8 4 1U
159TBS B EAV=283.9 3
159TB G 79.5132 27 0.397 9 M1+E2 +0.126 8 4.28 C
159TBS G KC=3.55 5$LC=0.567 10$MC=0.1249 22$NC+=0.0334 6
159TBS G NC=0.0288 5$OC=0.00436 8$PC=0.000265 4
159TB G 137.515 5 0.0549 13[E2] 0.828 C
159TBS G KC=0.476 7$LC=0.272 4$MC=0.0640 9$NC+=0.01632 23
159TBS G NC=0.01440 21$OC=0.00190 3$PC=2.49E-5 4
159TB L 348.2830 15 5/2+
159TB B 0.315 4 8.339 6
159TBS B EAV=194.4 3
159TB G 210.783 3 0.170 12 [M1,E2] 0.23 4 C
159TBS G KC=0.18 5$LC=0.039 7$MC=0.0088 17$NC+=0.0023 4
159TBS G NC=0.0020 4$OC=0.00029 4$PC=1.2E-5 5
159TB G 290.2865 25 0.274 4 [M1,E2] 0.091 23 C
159TBS G KC=0.074 22$LC=0.0135 3$MC=0.00301 5$NC+=0.000796 14
159TBS G NC=0.000690 10$OC=0.000101 6$PC=5.1E-6 20
159TB G 348.2807 18 2.031 21M1+E2 0.43 +10-9 0.0653 22
159TBS G KC=0.0548 20$LC=0.00818 15$MC=0.00179 3$NC+=0.000481 9
159TBS G NC=0.000414 8$OC=6.32E-5 13$PC=3.99E-6 16
159TB L 363.5451 14 5/2- 158 PS 7
159TB cL T$Weighted average of 160~ps {I16} by |b|g(t) (1961Go32), 170~ps {I70}
159TB2cL by |b|g(t) (1961Va36), 180~ps {I15} by |b|g(t) (1967Ko17), 150~ps {I10}
159TB3cL by |bce(t) (1967Ma33), and 152~ps {I15} by |b|g(t) (1969Be54).
159TB B 12.19 6 6.714 3 C
159TBS B EAV=188.9 3
159TB cB IB$Measured I|b{+-}=13% {I2} (1975BaXG), which would include the 348
159TB2cB level.
159TB G 226.0406 18 1.842 18E1 0.0341 C
159TBS G KC=0.0289 4$LC=0.00411 6$MC=0.000892 13$NC+=0.000237 4
159TBS G NC=0.000204 3$OC=3.05E-5 5$PC=1.779E-6 25
159TB G 305.5492 20 0.526 6 E1 0.01582 C
159TBS G KC=0.01342 19$LC=0.00188 3$MC=0.000407 6$NC+=0.0001084 16
159TBS G NC=9.34E-5 13$OC=1.409E-5 20$PC=8.51E-7 12
159TB G 363.5430 18 100 E1 0.01033 C
159TBS G KC=0.00878 13$LC=0.001216 17$MC=0.000264 4$NC+=7.03E-5 10
159TBS G NC=6.06E-5 9$OC=9.17E-6 13$PC=5.64E-7 8
159TB L 580.808 6 1/2+
159TB B 0.0635 9 8.351 7
159TBS B EAV=113.82 23
159TB cB IB$Measured data (1975BaXG) have a component to a level at |?410~keV
159TB2cB with I|b{+-}=1%.
159TB G 580.808 6 0.580 5 [M1,E2] 0.014 5 C
159TBS G KC=0.012 4$LC=0.0018 5$MC=0.00040 9$NC+=0.000106 24
159TBS G NC=9.2E-5 21$OC=1.4E-5 4$PC=9.E-7 3
159TB L 617.619 5 3/2+
159TB B 0.0301 9 8.534 14
159TBS B EAV=101.81 23
159TB G 559.623 6 0.188 5 M1+E2 0.67 +58-1 0.018 3 C
159TBS G KC=0.015 3$LC=0.0022 3$MC=0.00047 6$NC+=0.000127 16
159TBS G NC=0.000109 14$OC=1.67E-5 22$PC=1.07E-6 21
159TB G 617.615 8 0.135 4 (M1) 0.01608 C
159TBS G KC=0.01365 20$LC=0.00190 3$MC=0.000413 6$NC+=0.0001113 16
159TBS G NC=9.56E-5 14$OC=1.478E-5 21$PC=9.93E-7 14
159TB L 674.235 17 5/2+
159TB B 0.00387 10 9.179 12
159TBS B EAV=83.79 22
159TB G 536.78 18 0.0136 4 (M1) 0.0229 C
159TBS G KC=0.0194 3$LC=0.00272 4$MC=0.000591 9$NC+=0.0001592 23
159TBS G NC=0.0001367 20$OC=2.11E-5 3$PC=1.417E-6 20
159TB cG E$In (n,n'|g), 1987Al07 argue that this placement is not correct, but
159TB2cG the alternate placement is from a 9/2+, 536-keV level, which is not
159TB3cG expected to be populated here.
159TB G 616.233 18 0.0160 7 (M1) 0.01617 C
159TBS G KC=0.01373 20$LC=0.00191 3$MC=0.000416 6$NC+=0.0001120 16
159TBS G NC=9.61E-5 14$OC=1.486E-5 21$PC=9.99E-7 14
159TB G 674.26 5 0.0026819(M1) 0.01292
159TBS G KC=0.01097 16$LC=0.001522 22$MC=0.000331 5$NC+=8.92E-5 13
159TBS G NC=7.65E-5 11$OC=1.184E-5 17$PC=7.97E-7 12
159TB L 854.960 7 (1/2-)
159TB B 0.0162 5 7.270 16
159TBS B EAV=30.40 20
159TB G 237.341 5 0.0653 14 [E1] 0.0301 C
159TBS G KC=0.0255 4$LC=0.00361 5$MC=0.000784 11$NC+=0.000208 3
159TBS G NC=0.000180 3$OC=2.69E-5 4$PC=1.576E-6 22
159TB G 274.163 19 0.048 3 [E1] 0.0208 C
159TBS G KC=0.01762 25$LC=0.00248 4$MC=0.000538 8$NC+=0.0001429 20
159TBS G NC=0.0001233 18$OC=1.85E-5 3$PC=1.106E-6 16
159TB cG RI$Weighted average for I|g(273+274)=0.0544 {I23} and division is from
159TB2cG 1995Mo08.
159TB G 854.947 20 0.0209 12[E1] 1.61E-3
159TBS G KC=0.001374 20$LC=0.000182 3$MC=3.93E-5 6$NC+=1.054E-5 15
159TBS G NC=9.06E-6 13$OC=1.391E-6 20$PC=9.16E-8 13
159TB L 891.25 6 (5/2-)
159TB B 0.0011 4 7.93 16
159TBS B EAV=20.51 19
159TB G 273.62 12 0.006 3 [E1] 0.0209
159TBS G KC=0.01770 25$LC=0.00249 4$MC=0.000541 8$NC+=0.0001437 21
159TBS G NC=0.0001239 18$OC=1.86E-5 3$PC=1.111E-6 16
159TB cG RI$Weighted average for I|g(273+274)=0.0544 {I23} and division is from
159TB2cG 1995Mo08.
159TB G 753.74 6 0.0015317[E1] 0.00206
159TBS G KC=0.001760 25$LC=0.000235 4$MC=5.07E-5 7$NC+=1.359E-5 19
159TBS G NC=1.168E-5 17$OC=1.79E-6 3$PC=1.170E-7 17
159TB cG E,RI$Reported by 1995Mo08 only.