168TA 168W EC DECAY 1990ME12 10NDS 201008 168TA H TYP=FUL$AUT=CORAL M. BAGLIN$CIT=NDS 111, 1807 (2010)$CUT=15-Jun-2010$ 168TA C The decay scheme and all data are from 1990Me12. 168TA2C NO MULTIPOLARITIES ARE KNOWN BUT, PROVIDED %EC+B+ TO 179 LEVEL IS >2, 168TA3C LOGFT<5.9 AND THE TRANSITION IS ALLOWED; GIVEN THE RELATIVE STRENGTH OF 168TA4C THE 178G, THIS CONDITION IS SATISFIED AND JPI=1+ CAN BE ASSIGNED 168TA5C TO THE 178 LEVEL. PROVIDED %EC+B+ TO THE 352 LEVEL IS >1.4, THIS 168TA6C BRANCH WILL BE ALLOWED ALSO; THIS CONDITION IS SATISFIED EVEN IF THE 168TA7C TWO DEEXCITING GAMMAS HAVE NEGLIGIBLE CONVERSION, PROVIDED NONE OF 168TA8C THE UNPLACED TRANSITIONS FEEDS THE 352 LEVEL. THIS MAY NOT BE A VALID 168TA9C ASSUMPTION, SO THE ASSIGNMENT OF 1+ TO THIS LEVEL IS HIGHLY TENTATIVE. 168TA C 1990ME12: Sources from 136BA(36AR,4N), E(36AR)=165-205 MEV, helium-jet 168TA3C transport; 93% target enrichment; measured excitation 168TA4C functions, EG, IG (GELI and Ge GX detectors), GG coin. 168TA CE TI FROM TI IMBALANCE AT EACH LEVEL. 168TA CG RI Arbitrary units relative to I(178.5G)=100. 168TA CG E(A) COINCIDENT WITH 178.5G. 168TA CL E FROM LEAST-SQUARES FIT TO EG. 168TA CL J FROM Adopted Levels. 168W P 0.0 0+ 50.9 S 19 3500 30 168TA N 0.78 11 0.78 11 1.0 1.0 168TA CN NR NEGLIGIBLE GS FEEDING IS EXPECTED (%EC+B+<0.17 FOR 168TA2CN LOGF1UT>8.5). OF THE UNPLACED GAMMAS, ONLY THE RELATIVELY WEAK 573G 168TA3CN MIGHT FEED THE GS, SO AN APPROXIMATE DECAY SCHEME NORMALIZATION CAN 168TA4CN BE OBTAINED FROM SUMOF (TI TO GS)=100, ASSUMING 178G AND 352G ARE 168TA5CN EACH EITHER E1 OR E2. 168TA PN 5 168TA G 37.1 4 1.3 2 A 168TA G 145.5 3 2 LT A 168TA G 156.6 3 1.7 2 A 168TA G 181.8 3 1.7 2 A 168TA G 573.1 4 1.4 2 168TA L 0.0 (2-,3+) 2.0 M 1 168TA L 178.43 25 1+ 168TA E 21 4 75 16 4.12 10 96 20 168TAS E EAV=1039 14$CK=0.642 6$CL=0.1042 10$CM+=0.0320 3 168TA G 178.5 3 100 [E1,E2] 0.26 18 C 168TA L 352.27 25(1+) 168TA E 0.60 11 2.7 5 5.51 9 3.3 6 168TAS E EAV=961 14$CK=0.673 6$CL=0.1096 10$CM+=0.0337 3 168TA G 173.9 3 1.4 2 [M1,E2] 0.69 22 C 168TA G 352.2 3 1.8 2 [E1,E2] 0.033 18