170W 170RE EC DECAY 2001KI10,1992ME10 18NDS 201811
170W H TYP=FUL$AUT=C.M. Baglin{+1}, E.A. McCutchan{+2}, S. Basunia{+1$
170W 2 H CIT=NDS 153, 1 (2018)$CUT=1-Oct-2018$
170W C Sources produced by 159TB(20NE,9N), E AP 180 MEV (1975ST02);
170W 2C 1-GEV protons on TL (1974BE59); 141PR+32S, E(32S) AP 178 MEV
170W 3C (1992ME10); granddaughter of 170IR produced via 144SM(31P,5N) at
170W 4C 150 MEV (2001KI10).
170W C 2001KI10: SOURCE FROM DECAY OF 170IR PRODUCED IN 144SM(31P,5N), E=150
170W 2C MEV; ^CAESAR array of six COMPTON-suppressed Ge detectors,
170W 2C superconducting solenoid electron spectrometer; measured EG
170W 3C (EG=30-2000), IG, ICE, GG coin, GG(t) and GG(|q) (6 angles);
170W 4C band-mixing model calculations.
170W 5C See also 1998KI14 for preliminary report of this study.
170W C 1992ME10: measured EG, IG, GG coin, G-XK coin.
170W C The adopted decay scheme is that of 2001KI10; it is much more extensive
170W 2C than and consistent with those of 1992ME10 and 1975ST02,
170W 3C but differs from that of 1974BE59. The EC branching deduced from
170W 4C intensity imbalance at each level in this decay scheme is clearly
170W 5C an unreliable predictor of level JPI, since it varies
170W 6C greatly depending on the number of transitions included in the scheme,
170W 7C and is also somewhat dependent on whether RI is taken from 1992ME10
170W 8C or from 2001KI10. The range of JPI values that appear to be fed is
170W 9C inconsistent with the assumption of a unique JPI for the parent,
170W AC but no isomer of 170RE is known at present. Q(EC) is large (8.4 MEV)
170W BC but the highest-energy level known to be populated lies at 2650 KEV.
170W BC This, combined with the exclusion of EG>2000 transitions probably
170W CC results in a very incomplete decay scheme, rendering the deduced LOGFT
170W DC values meaningless. A remeasurement of this decay including EG>2 MEV
170W EC appears to be needed.
170W CE IE,LOGFT$IE values deduced from intensity imbalance at each level are
170W 2CE given for completeness only; they do not lead to meaningful LOGFT
170W 3CE values, possibly due to an incomplete decay scheme (see general comment
170W 4CE on decay scheme), so LOGFT values are not considered to provide useful
170W 5CE arguments for JPI assignments. The completeness of the scheme
170W 5CE can significantly affect conclusions concerning which
170W 6CE levels are fed in this decay. For example, based on all transitions
170W 7CE reported in 2001KI10, significant feeding occurs from the (5+) parent
170W 8CE to levels with JPI from 2+ to 8+, but the 157 (2+) and 462 (4+) levels
170W 9CE do not appear to be fed at all. However, if one were to consider only
170W ACE the 8 transitions reported in 1992ME10, the IG data from 1992ME10 and
170W BCE 2001KI10 would imply non-zero EC branches to both levels, viz.,
170W CCE 15% {I4} and 9% {I4}, respectively, to the 2+ 157 level, and 23% {I5}
170W DCE and 14.7% {I24}, respectively, to the (4)+ 462 level.
170W CG E From 2001KI10, except as noted. Uncertainties are reported
170W 2CG to be LE 0.2 KEV for most lines; the evaluator has assigned
170W 3CG |DE{-|g}=0.2 to all EG. Data from 1992ME10 are in excellent
170W 4CG agreement except for the two highest energy lines reported in 1992ME10.
170W 5CG Note that the experiment of 2001KI10 was unable to observe EG>2000.
170W CG RI Photon intensities from 2001KI10 relative to
170W 2CG I(157G)=100 3; from GG coin total projection spectrum measured between
170W 3CG beam bursts, EG>2000 excluded (singles spectrum IG not reported).
170W 4CG Note that singles spectrum data from 1992ME10 are in some cases
170W 5CG significantly different from those in 2001KI10; consequently, IG data
170W 6CG from 1992ME10 are also indicated (in comments on the relevant
170W 7CG transitions).
170W CG CC For transitions with E0 admixture, CC=1.25(EKC) HAS BEEN
170W 2CG ASSUMED.
170W CG M From Adopted Gammas, except as noted.
170W CG MR From G(|q) and/or EKC (2001KI10).
170W CL E From least-squares fit to EG.
170W CL J From Adopted Levels.
170W CL BAND(A) KPI=0+ GS BAND.
170W CL BAND(E) PI=-, |a=0 OCTUPOLE BAND.
170W 2CL PROBABLY PREDOMINANTLY (|p 9/2[514])~#(|p 5/2[402]), FOR WHICH KPI=2-
170W 3CL IS FAVORED, BUT 2-QUASINEUTRON ADMIXTURES may ALSO be PRESENT
170W 4CL (2001KI10), AND CORIOLIS MIXING OF DIFFERENT K COMPONENTS OF THE
170W 5CL OCTUPOLE VIBRATION may RENDER K A POOR QUANTUM NUMBER.
170W cL BAND(e)$Possible |p=-, |a=1 octupole band.
170W 2CL SIGNATURE PARTNER OF PI=-, |a=0 BAND; SEE COMMENTS ON THAT BAND.
170W CL BAND(F) KPI=0+ |b BAND (2001KI10).
170W 2CL Assignment supported by G decay pattern, particularly the strong E0
170W 3CL component in the 740G and 703G to the 4+ and 6+ states, respectively,
170W 4CL of the GS band. From systematics, the J=0 member is expected
170W 5CL at AP 750 KEV.
170W CL BAND(G) KPI=2+ |g BAND.
170W 2CL The energies of the J=2 and 4 members differ only by AP 20 KEV
170W 3CL from their counterparts in the B band, so significant BG mixing
170W 4CL is expected.
170RE P 0.0 (5+) 9.2 S 2 8378 27
170W N 0.541 17 1 1.
170W CN NR FROM SUMOF (TI TO GS)=100; no EC+B+ branch to GS is expected
170W 2CN BECAUSE DJ=(5).
170W PN 3
170W L 0.0 0+ A
170W L 156.52 16 2+ A
170W CL Intensity balance of -6 {I4} to this level probably results
170W 2CL from missing |g-ray intensity feeding this level.
170W G 156.67 19 100 3 E2 0.718 C
170W S G KC=0.322 5$LC=0.301 5$MC=0.0754 12$NC+=0.0203 3
170W S G NC=0.0178 3$OC=0.00248 4$PC=2.44E-5 4
170W CG E$weighted average of 156.0 4 (1975ST02), 156.9 2 (1992ME10),
170W 2CG 156.6 2 (2001KI10).
170W CG IG=54.1% 7 assuming adopted decay scheme normalization.
170W L 462.11 19 4+ A
170W G 305.7 2 144.3 26 E2 0.0804 C
170W S G KC=0.0543 8$LC=0.0199 3$MC=0.00486 7$NC+=0.001326 19
170W S G NC=0.001153 17$OC=0.0001680 24$PC=4.66E-6 7
170W cG RI$other: 135 {I5} (1992Me10).
170W CG A2=+0.09 3, A4=+0.03 3 (2001KI10).
170W L 875.28 22 6+ A
170W E 8 3 1 5.85 15 9 3
170W S E EAV=2974 13$CK=0.1288 13$CL=0.02075 21$CM+=0.00639 7
170W DE LOGFT=5.85 15.
170W G 413.1 2 113.5 25 E2 0.0344 C
170W S G KC=0.0253 4$LC=0.00695 10$MC=0.001667 24$NC+=0.000458 7
170W S G NC=0.000397 6$OC=5.94E-5 9$PC=2.27E-6 4
170W cG RI$other: 88 {I5} (1992Me10).
170W CG A2=+0.13 4, A4=+0.02 4 (2001KI10).
170W cG E$other: 412.5 {I4} (1975St02).
170W L 936.96 17 (2+) G
170W E 6.1 5 1.2 1 5.92 4 7.3 6
170W S E EAV=2945 13$CK=0.1318 14$CL=0.02123 22$CM+=0.00654 7
170W DE LOGFT=5.92 4.
170W G 780.6 2 1.0 3
170W G 936.8 2 12.5 9
170W L 952.29 23 (2+) F
170W E 1.0 4 0.19 8 6.70 19 1.2 5 ?
170W S E EAV=2938 13$CK=0.1325 14$CL=0.02135 22$CM+=0.00658 7
170W G 796.0 2 3.9 7
170W L 1073.36 22 (3+) G
170W E 4.7 6 0.96 12 5.99 6 5.7 7
170W S E EAV=2880 13$CK=0.1386 15$CL=0.02235 23$CM+=0.00688 7
170W DE LOGFT=5.96 20.
170W G 611.3 2 2.3 6
170W G 916.7 2 10.0 9 (M1+E2) +15 LE
170W S G CC=0.009 4$KC=0.007 3$LC=0.0011 4$MC=0.00026 9$NC+=7.3E-5 24
170W S G NC=6.2E-5 21$OC=1.0E-5 4$PC=7.E-7 3
170W CG M,MR from A2=-0.13 23, A4=-0.04 24, MR(^D,Q)=+10 {I+5-|@}
170W 2CG (2001KI10); DPI=(no) from level scheme. Pure ^D or pure Q not
170W 3CG ruled out.
170W L 1152.82 22 (2+,3,4+)
170W E 3.5 7 0.73 14 6.10 9 4.2 8
170W S E EAV=2843 13$CK=0.1428 15$CL=0.02303 24$CM+=0.00709 8
170W DE LOGFT=6.07 21.
170W G 690.7 2 2.3 6
170W G 996.3 2 5.4 12
170W L 1201.96 23 4+ F
170W E 5.4 8 1.1 2 5.90 7 6.5 10
170W S E EAV=2820 13$CK=0.1455 15$CL=0.02346 25$CM+=0.00723 8
170W DE LOGFT=5.87 20.
170W G 249.9 2 1.4 5 [E2] 0.1491
170W S G KC=0.0926 14$LC=0.0430 7$MC=0.01059 16$NC+=0.00288 5
170W S G NC=0.00251 4$OC=0.000360 6$PC=7.67E-6 11
170W G 739.8 2 12.9 14E0+E2(+M1) -1.7 LE 0.061 AP C
170W cG E$other: 15.6 {I12} (1992Me10).
170W CG M,MR from EKC=0.046 11, A2=-0.01 13, A4=+0.23 24,
170W 2CG MR(^D,Q)=-3.3 {I+1.6-INFNT}, q{+2}(E0/E2)=6.1 18, ^X(E0/E2)=0.16 5
170W 3CG (2001KI10).
170W CG CC based on EKC.
170W L 1219.77 21 (4+) G
170W E 2.5 4 0.53 9 6.23 8 3.0 5
170W S E EAV=2811 13$CK=0.1465 16$CL=0.02362 25$CM+=0.00728 8
170W DE LOGFT=6.20 20.
170W G 344.6 2 0.9 3 [E2] 0.0567
170W S G KC=0.0398 6$LC=0.01292 19$MC=0.00313 5$NC+=0.000857 13
170W S G NC=0.000744 11$OC=0.0001095 16$PC=3.49E-6 5
170W G 757.6 2 2.9 7
170W G 1063.2 2 1.7 5
170W L 1314.22 22 (3-) e
170W E 1.9 4 0.42 9 6.32 10 2.3 5
170W S E EAV=2767 13$CK=0.1519 16$CL=0.0245 3$CM+=0.00754 8
170W DE LOGFT=6.28 21.
170W G 852.3 2 1.9 6
170W G 1157.5 2 2.3 6
170W L 1327.3 3 (2-) E
170W E 1.9 4 0.43 9 6.31 10 2.3 5
170W S E EAV=2760 13$CK=0.1526 16$CL=0.0246 3$CM+=0.00758 8
170W DE LOGFT=6.28 2.
170W G 1170.8 2 4.2 8
170W L 1363.1 3 8+ A
170W E 8.1 12 1.9 3 5.66 7 10.0 15
170W S E EAV=2743 13$CK=0.1547 17$CL=0.0250 3$CM+=0.00769 8
170W DE LOGFT=5.63 21.
170W G 487.9 2 27.8 17 E2 0.0223 C
170W S G KC=0.01698 24$LC=0.00409 6$MC=0.000972 14$NC+=0.000269 4
170W S G NC=0.000232 4$OC=3.52E-5 5$PC=1.548E-6 22
170W cG RI$other: 17.6 {I13} (1992Me10).
170W CG A2=+0.11 10, A4=+0.07 10 (2001KI10).
170W L 1492.33 24 (4-) E
170W E 3.6 4 0.89 10 5.97 5 4.5 5
170W S E EAV=2683 13$CK=0.1627 18$CL=0.0262 3$CM+=0.00808 9
170W DE LOGFT=5.94 20.
170W G 418.9 2 1.7 3
170W G 1030.3 2 6.7 8 (E1+M2) -1.7 +11-39 0.017 10
170W S G KC=0.014 8$LC=0.0023 14$MC=0.0005 3$NC+=0.00015 9
170W S G NC=0.00013 8$OC=2.1E-5 13$PC=1.5E-6 9
170W CG M,MR ^D+Q from A2=+0.09 21, A4=+0.12 22 (2001KI10), DPI=yes from
170W 2CG level scheme.
170W L 1517.04 24 5- e
170W E 3.4 6 0.84 16 5.99 9 4.2 8
170W S E EAV=2671 13$CK=0.1642 18$CL=0.0265 3$CM+=0.00816 9
170W DE LOGFT=5.96 21.
170W G 641.7 2 6.7 13
170W G 1055.0 2 1.1 4
170W L 1578.07 25 6+ F
170W E 7.9 8 2.0 2 5.60 5 9.9 10
170W S E EAV=2642 13$CK=0.1682 18$CL=0.0271 3$CM+=0.00836 9
170W DE LOGFT=5.57 20.
170W G 376.3 2 3.1 5 [E2] 0.0443
170W S G KC=0.0318 5$LC=0.00951 14$MC=0.00229 4$NC+=0.000629 9
170W S G NC=0.000545 8$OC=8.09E-5 12$PC=2.83E-6 4
170W G 702.6 2 13.9 14 E0+E2+M1 -1.7 +8-25 0.089 AP C
170W CG E weighted average of 702.4 2 (1992ME10), 702.8 2 (2001KI10).
170W cG RI$other: 14.2 {I10} (1992Me10).
170W CG M,MR from EKC=0.067 15, A2=+0.04 6, A4=+0.12 7,
170W 2CG q{+2}(E0/E2)=10 3, ^X(E0/E2)=0.23 7 (2001KI10).
170W CG CC based on EKC.
170W L 1718.59 24 (4+,5,6+)
170W E 4.4 5 1.2 1 5.81 5 5.6 6
170W S E EAV=2576 13$CK=0.1777 19$CL=0.0287 3$CM+=0.00884 10
170W DE LOGFT=5.78 21.
170W G 843.4 2 3.0 7
170W G 1256.4 2 7.4 7
170W L 1791.4 3 7- e
170W E 5.8 10 1.7 3 5.66 8 7.5 13
170W S E EAV=2542 13$CK=0.1829 20$CL=0.0295 4$CM+=0.00910 10
170W DE LOGFT=5.63 22.
170W G 428.4 2 9.9 21 (E1)
170W S G CC=0.00998 14$KC=0.00836 12$LC=0.001253 18$MC=0.000283 4$NC+=7.93E-5 12
170W S G NC=6.77E-5 10$OC=1.084E-5 16$PC=7.08E-7 10
170W G 916.0 2 3.9 10 E1
170W S G CC=0.00210 3$KC=0.001776 25$LC=0.000253 4$MC=5.68E-5 8$NC+=1.600E-5 23
170W S G NC=1.363E-5 19$OC=2.21E-6 4$PC=1.556E-7 22
170W L 1810.9 3 (6-) E
170W E 1.4 3 0.40 9 6.27 10 1.8 4 ?
170W S E EAV=2533 13$CK=0.1843 20$CL=0.0298 4$CM+=0.00917 10
170W G 935.6 2 3.4 7
170W L 1875.4 3
170W E 0.8 3 0.25 9 6.47 16 1.1 4 ?
170W S E EAV=2502 13$CK=0.1891 21$CL=0.0305 4$CM+=0.00941 11
170W G 1413.3 2 2.0 7
170W L 1974.5 3
170W E 1.2 4 0.38 12 6.27 14 1.6 5 ?
170W S E EAV=2456 13$CK=0.1968 22$CL=0.0318 4$CM+=0.00980 11
170W G 1099.2 2 3.0 8
170W L 2079.8 3
170W E 1.3 2 0.42 7 6.22 8 1.7 3 ?
170W S E EAV=2407 13$CK=0.2054 23$CL=0.0332 4$CM+=0.01023 12
170W G 1204.5 2 3.2 5
170W L 2344.6 3
170W E 5.0 7 1.9 3 5.52 7 6.9 10
170W S E EAV=2283 13$CK=0.229 3$CL=0.0370 5$CM+=0.01140 13
170W DE LOGFT=5.49 22.
170W G 1469.3 2 12.7 18 C
170W cG RI$other: 8.9 {I9} (1992Me10)
170W cG E$other: 1469.9 {I4} (1992Me10).
170W L 2442.6 3
170W E 3.0 7 1.2 3 5.71 11 4.2 10
170W S E EAV=2237 13$CK=0.238 3$CL=0.0385 5$CM+=0.01188 14
170W DE LOGFT=5.67 24.
170W G 1567.3 2 7.7 17 C
170W cG RI$other: 11.3 {I13} (1992Me10)
170W cG E$other: 1568.2 {I4} (1992Me10).
170W L 2480.9 3
170W E 1.6 5 0.67 21 5.96 14 2.3 7
170W S E EAV=2219 13$CK=0.242 3$CL=0.0392 5$CM+=0.01207 14
170W DE LOGFT=5.9 3.
170W G 1605.6 2 4.2 13
170W L 2552.6 3
170W E 1.2 6 0.51 24 6.06 21 1.7 8
170W S E EAV=2186 13$CK=0.249 3$CL=0.0403 5$CM+=0.01244 15
170W DE LOGFT=6.0 3.
170W G 1677.3 2 3.2 14
170W L 2650.1 3
170W E 1.7 4 0.79 19 5.86 11 2.5 6
170W S E EAV=2140 13$CK=0.260 3$CL=0.0420 5$CM+=0.01296 15
170W DE LOGFT=5.83 24.
170W G 1774.8 2 4.6 11