87ZR 87NB B+ DECAY (2.6 M) 1986COZQ,1974VO03,1977KO0515NDS 201510
87ZR H TYP=FUL$AUT=T.D. Johnson and W.D. Kulp(a)$CIT=NDS 129, 1 (2015)$
87ZR2 H CUT=27-Jul-2015$
87ZR c Although there are five studies of this decay, of the 35 |g's
87ZR2c reported here, only 11 are reported by more than one author.
87ZR3c Therefore, this activity needs additional study.
87ZR c 1986CoZQ: {+58}Ni({+32}S,3p), E({+32}S)=110 MeV measured |g spectra
87ZR2c and |g|g coincidences. Data taken from authors' decay scheme
87ZR3c drawing.
87ZR c 1974Vo03: spallation by 660-MeV protons on silver with chemical
87ZR2c separation; measured |g spectra and decay for each |g, |g|g
87ZR3c coincidences.
87ZR c 1977Ko05: {+58}Ni({+32}S,n2p){+87}Mo and {+58}Ni({+32}S,3p){+87}Nb,
87ZR2c E({+32}S)=111 MeV; measured |g spectra and |g|g coincidences.
87ZR c 1971Do01: {+58}Ni({+32}S,3p), E({+32}S)=90-100 MeV; measured |g
87ZR2c spectra.
87ZR c 1972Tu03: {+90}Zr(p,4n); measured |g spectra and |g|g coincidences.
87ZR cL E From least-squares fit to |g-ray energies.
87ZR cL J From {+87}Zr Adopted Levels
87ZR cE IB,IE,TI The total branching intensities are from |g-ray intensity
87ZR2cE balances and are based on a 37% branch to the ground state, as
87ZR3cE reported by 1982De43. Branches less than 5% are not reported
87ZR4cE here since this scheme is very approximate. The |b+ and |e
87ZR5cE intensities are theoretical values from the LOGFT code.
87ZR cG E Average of values from 1974Vo03 and 1977Ko05, unless
87ZR2cG indicated otherwise.
87ZR cG E 914.2 |g was reported by 1974Vo03, but this transition
87ZR3cG has been reassigned by 1977Ka05 to {+86}Nb decay.
87ZR cG RI Average of data from 1974Vo03, 1977Ko05, and 1982De43,
87ZR2cG unless indicated otherwise. The values of 1974Vo03 and 1982De43
87ZR3cG were normalized to I{-|g}(201)=100. The data of
87ZR4cG 1977Ko05 were normalized
87ZR5cG to I{-|g}(470.8|g)=69, based on a weighted average from
87ZR6cG 1974Vo03, 1986CoZQ, and 1972Tu03. When they were used,
87ZR7cG the values of 1986CoZQ were normalized to I{-|g}(616)=31,
87ZR8cG since they also included the 3.75-minute activity; no
87ZR9cG uncertainties are given by 1986CoZQ.
87ZR cL E(R) Observed only by 1986CoZQ, not uniquely assigned to this
87ZR2cL decay.
87ZR cG E(A) Average of values from 1974Vo03, 1977Ko05, 1972Tu03, and
87ZR2cG 1971Do01.
87ZR cG E(B),RI(B)$Only from 1986CoZQ.
87ZR cG E(E),RI(E)$Only from 1974Vo03.
87ZR cG COIN from 1986CoZQ.
87ZR DG CC$FROM BrIcc v2.3a (30-Jun-2013) 2008Ki07, "Frozen Orbitals" appr.
87ZR N 0.3 0.3 1.0 1.0
87ZR cN NR,NT from 1982De43 and considered to be approximate.
87ZR PN 5
87NB P 3.84 14(9/2+) 2.6 M 1 5473 8
87ZR G 269.0 106 AP E
87ZR G 983.0 154.8 14 E
87ZR G 1168.0 153.6 11 E
87ZR G 1285.0 144.0 12 E
87ZR G 1559.0 153.0 9 E
87ZR L 0.0 9/2+
87ZR E 36 0.91 5.8 37.
87ZRS E EAV=2049.9 39$CK=0.02151 12$CL=0.002550 14$CM+=0.000572 3
87ZR L 201.01 19 7/2+
87ZR E 5 0.1 6.6 5.
87ZRS E EAV=1953.3 39$CK=0.02458 14$CL=0.002915 16$CM+=0.000653 4
87ZR G 201.0 2 100 4 M1+E2 -0.35 0.0370 AC
87ZRS G KC=0.0324 5$LC=0.00387 6$MC=0.000673 10
87ZRS G NC=9.43E-5 14$OC=6.19E-6 9
87ZR cG RI weighted average of 100 6 (1974Vo03) and 100.0 44 (1972Tu03).
87ZR cG M,MR from Adopted |g's.
87ZR L 470.58 16(7/2+)
87ZR E 21 0.75 5.8 22.
87ZRS E EAV=1824.1 39$CK=0.02968 18$CL=0.003520 21$CM+=0.000789 5
87ZR G 470.6 2 69 4 A
87ZR cG RI Weighted average of 74.0 {I44} (1974Vo03), 71.7 {I40}
87ZR2cG (1972Tu03), and 60 {I5} (1982DeZQ), and 67 (1986CoZQ),
87ZR3cG normalized to this value in 1977K05; other: 72 {I4} (1972Tu03)
87ZR L 523.8 23 R ?
87ZR G 322.8 23 2 B
87ZR L 589.3 17 R
87ZR G 388.7 23 B
87ZR L 801.1 4 (7/2)
87ZR G 600.0 5 9.5 15 C
87ZR G 801.0 6 4.0 12
87ZR cG RI from 1974Vo03; others: 8.4 {I21} (1977Ko05), 4 {I1}
87ZR2cG (1982De43), and 7 (1986CoZQ).
87ZR L 817.54 25
87ZR G 616.6 2 31 3 C
87ZR cG E this placement is from 1977Ko05, 1974Vo03 place this
87ZR2cG transition from the 1087 level.
87ZR L 1087.9 12 (9/2)
87ZR G 887.0 15 7.2 22 C
87ZR L 1284.0 24 R
87ZR G 466.5 23 2 BC
87ZR L 1287.5 24 R
87ZR G 470.0 23 7 BC
87ZR L 1505.6 23 R
87ZR G 1304.6 23 5 B
87ZR L 1669 4 R
87ZR G 381.3 23 B
87ZR3 G FL=1287.5
87ZR L 1749 4 R
87ZR G 461.7 23 2 BC
87ZR3 G FL=1287.5
87ZR L 1884.4 3(7/2+,9/2+,11/2+)
87ZR cL J From logft
87ZR E 27 3.6 4.8 31.
87ZRS E EAV=1154.6 38$CK=0.1013 9$CL=0.01205 11$CM+=0.002701 23
87ZR G 797.0 23 5 BC
87ZR G 1066.8 5 37 4
87ZR cG E this placement is from 1986CoZQ, 1974Vo03 place this
87ZR2cG transition from the 2153 level.
87ZR G 1083.0 7 7 2 C
87ZR G 1295.4 23 2 B
87ZR G 1683.2 3 2.4 10 C
87ZR cG E Adopted 1683.2 {I3} (1974Vo03); others:
87ZR2cG 1686.0 {I7} (1977Ko05) and is discrepant,
87ZR3cG 1682.7 (1982De43), and 1684.1 {I23} (1986CoZQ).
87ZR cG RI Weighted average of 4.2 {I21} (1977Ko05) and
87ZR2cG 2 {I1} (1982De43); others 15.2 {I5} (1974Vo03) and 2
87ZR3cG (1986CoZQ), but with no uncertainties given.
87ZR3cG The evaluators
87ZR3cG have opted for a lower intensity values since at least 3 values
87ZR4cG have consistently low values, whereas the larger value may
87ZR5cG be due to impurities.
87ZR5cG Note that the
87ZR3cG I|g(1683)/(I|g(1067|g + 1884|g))
87ZR4cG branching is 0.26 {I6} from 1982De43,
87ZR4cG 0.21 {I3} from 1974Vo03, 0.09 {I5} from 1977Ko05, and
87ZR5cG 0.06 from 1986CoZQ
87ZR G 1884.2 3 33 3
87ZR L 1911 4 R ?
87ZR G 242.4 23 2 B
87ZR L 1919.7 23 R
87ZR G 1718.7 23 2 B
87ZR L 1949 3 R ?
87ZR G 1360.1 23 2 B
87ZR L 2059.3 23 R
87ZR G 1858.3 23 2 B
87ZR L 2069.4 23 R
87ZR G 1868.4 23 2 B
87ZR L 2245.4 23 R
87ZR G 2044.4 23 2 B
87ZR L 2354.4 8
87ZR G 2153.3 7 3.8 11
87ZR cG RI from 1974Vo03; other: 12 (1986CoZQ).
87ZR L 2598.3 23 R
87ZR G 2397.3 23 2 B
87ZR L 3053.4 23 R
87ZR G 2852.3 23 2 B
87ZR L 3447.1 23 R
87ZR G 3246.0 23 2 B