190W 190W IT DECAY (111 NS) 2010LA16,2011ST21 20NDS 202011
190W H TYP=FUL$AUT=Balraj Singh,{+1} and Jun Chen{+2}$CIT=NDS 169, 1 (2020)$
190W 2 H CUT=15-Oct-2020$
190W c 2010La16: {+190}W ions were produced by E=840 MeV {+136}Xe beam from
190W 2c the ATLAS accelerator at ANL, bombarding a 20 mg/cm{+2} {+192}Os
190W 3c target. Measured E|g, I|g, |g|g, delayed |g spectra
190W 4c using Gammasphere array at ATLAS-ANL facility. In reference 24,
190W 5c authors mentioned that full details of this study are to be published
190W 6c elsewhere. But in evaluators' search of literature, no further
190W 7c publication from this group seems to have appeared.
190W c 2011St21 (also 2012Al05, 2010FaZX, 2009Al30, 2009Fa06, 2009Al16,
190W 2c 2008StZY, 2005Ca02, 2003Po14, 2001Ca13, 2000Po26, 2000Sc32, 2000Wo13):
190W 3c {+190}W nuclide formed by in-flight fragmentation of {+208}Pb beam at
190W 4c 1 GeV/nucleon from the GSI UNILAC and SIS-18 accelerator complex.
190W 5c Target thickness of 2.526 g/cm{+2}, backed by {+93}Nb foil of thickness
190W 6c 0.223 g/cm{+2}. Fragments separated and identified in flight by the
190W 7c Fragment Separator (FRS) operated in achromatic mode, based on time of
190W 8c flight, B|r and energy loss. Transmitted ions slowed in Al degraders
190W 9c and stopped in a plastic catcher. The stopper was surrounded by the
190W Ac RISING |g-ray spectrometer. Measured E|g, I|g, delayed |g rays, isomer
190W Bc lifetime. {+190}W beam was fully-stripped or mixture of H- or He-like
190W Cc nuclei.
190W d 2001MaZV, 2000ScZY, 2000PoZY: superseded by 2000Po26
190W c The level scheme is essentially from 2010La16. 2011St21 provide
190W 2c energies of four gamma rays from the decay of 108-|ms isomer
190W cG E$From 2011St21, unless otherwise stated. Uncertainty of 0.5 keV
190W 2cG for E|g values in 2011St21 are assigned in consultation with Zs.
190W 3cG Podolyak (co-author of 2011St21) in January 2012.
190W cG RI(x)$From I(|g+ce)=100 and |a(theory) for E2.
190W cL E$From E|g data, assuming 1 keV for 102|g
190W cL J$From the Adopted Levels, essentially, based on data and
190W 2cL interpretation from 2010La16
190W cL BAND(A)$g.s. band
190W P 1743.6 10 (8+) 111 NS 17
190W N 1.0 1.0 1.0
190W PN 3
190W L 0.0 0+ A
190W L 206.8 5 (2+) A
190W G 206.8 5 78.4 3 [E2] 0.275 100 x
190W S G KC=0.1540 23$LC=0.0921 14$MC=0.0229 4
190W S G NC=0.00541 9$OC=0.000765 12$PC=1.228E-5 18
190W cG E$others: 207.0 {I3} (2005Ca02), 206 (2010La16), 207 (2000Po26)
190W cG RI$others: 81 {I10} (2011St21), 129 {I33} (renormalized from 27 {I7}
190W 2cG in 2005Ca02), 105 {I24} (renormalized from 65 {I15} 2000Po26)
190W L 565.1 7 (4+) A
190W G 358.3 5 95.15 7 [E2] 0.0510 100 x
190W S G KC=0.0362 6$LC=0.01134 17$MC=0.00274 4
190W S G NC=0.000652 10$OC=9.63E-5 14$PC=3.19E-6 5
190W cG E$others: 357.4 {I3} (2005Ca02), 358 (2010La16), 357 (2000Po26)
190W cG RI$others: 92 {I10} (2011St21), 114 {I33} (renormalized from 24 {I7}
190W 2cG in 2005Ca02), 107 {I24} (renormalized from 67 {I15} 2000Po26)
190W L 1049.4 9 (6+) A
190W G 484.3 5 97.77 3 [E2] 0.0228 100 x
190W S G KC=0.01729 25$LC=0.00419 6$MC=0.000996 15
190W S G NC=0.000238 4$OC=3.61E-5 6$PC=1.575E-6 23
190W cG E$others: 484.0 {I4} (2005Ca02), 484 (2010La16), 485 (2000Po26)
190W cG RI$others: 100 {I11} (2011St21), (100 {I33} (renormalized from 21 {I7}
190W 2cG in 2005Ca02), 100 {I32} (renormalized from 62 {I20} 2000Po26)
190W L 1642.2 12 (8+) A
190W cL $Transition intensity balance at this level is 25% {I28}, in contrast
190W 2cL to expected zero balance. Note that the uncertainty is large for the
190W 3cL 593.6|g. Or it is possible that the photon intensity of the 102|g
190W 4cL is underestimated.
190W cL E$level from 2010La16 only, and proposed as member of the g.s. band,
190W 2cL as in 2005Ca02 and 2000Po26. This level and feeding |g of 102 keV
190W 3cL are not reported by 2011St21
190W G 593.6 11 20.6 38 [E2] 0.01387
190W S G KC=0.01088 16$LC=0.00230 4$MC=0.000541 9
190W S G NC=0.0001293 20$OC=2.00E-5 3$PC=1.003E-6 15
190W cG E$from 2005Ca02. Others: E|g=592 (2010La16), 591 (2000Po26). This |g
190W 3cG was not seen by 2009Al30, and not reported by 2011St21, perhaps
190W 4cG due to its weak population.
190W cG RI$deduced by evaluators from intensity balance at 1642 level. Others:
190W 2cG 43 {I27} (2000Po26), renormalized from 27 {I17}, 100 {I38},
190W 3cG renormalized from 21 {I8} in 2005Ca02. This |g is as strong as the
190W 4cG 484.1|g with I|g=21 {I7} in Table 1 of 2005Ca02, but seen in the |g
190W 5cG spectrum in Fig. 4 of 2005Ca02, much weaker than the 484.1|g peak.
190W L 1743.6 10 (8+) 111 NS 17 M1
190W 2 L %IT=100
190W cL T$from |g(t) with gates on the prompt 324|g and 356|g feeding this
190W 2cL level (2010La16).
190W cL $Configuration=|n9/2[505]~#|n7/2[503] (2010La16,2009Fa06)
190W G 102 3.8 7 (M1) 4.49
190W S G KC=3.72 6$LC=0.593 9$MC=0.1350 19
190W S G NC=0.0325 5$OC=0.00530 8$PC=0.000377 6
190W 2 G ECC=4.3 13 (2010La16)
190W cG E$|g reported by 2010La16 only
190W cG RI$from {+190}W IT decay (166 |ms), based on data in 2010La16. Other:
190W 2cG 3.4 {I9}, deduced by evaluators from I|g(102)/I|g(694)=4.8
190W 3cG {I11}/100 {I2} (2010La16) and I|g(694)=71 {I10} in 2011St21.
190W cG M$M1, E2 from |a(exp) deduced from |g-ray intensity balance
190W 2cG (2010La16); M1 is assigned in 2010La16, as dominant M1 may be more
190W 3cG likely for (8+) to (8+) transition
190W cG $Reduced hindrance factor f{-|n}=5.4 {I2}, |n=7, from
190W 2cG B(M1)(W.u.)=7|*10{+-6} {I2}, as given in 2010La16
190W G 694.0 5 78.5 37[E2] 0.00972
190W S G KC=0.00776 11$LC=0.001509 22$MC=0.000351 5
190W S G NC=8.41E-5 12$OC=1.313E-5 19$PC=7.19E-7 11
190W cG E$others: 694 (2010La16), 694.0 {I7} (2005Ca02), 695 (2000Po26);
190W 2cG in 2005Ca02 and 2000Po26, this |g was placed from a 2335, 10+ level,
190W 3cG as member of g.s. band). The decay scheme was modified by 2009Al30
190W 4cG and 2009Fa06 to place 694|g from this level, and omitting the 594|g
190W 5cG from 1640 level as the 594|g was absent in the delayed |g spectrum
190W 6cG obtained by 2009Al30
190W cG RI$from {+190}W IT decay (166 |ms), based on data in 2010La16. Others:
190W 2cG 71 {I10} (2011St21), 76 {I33} (renormalized from 16 {I7} in
190W 3cG 2005Ca02), 64 {I24} (renormalized from 62 {I20} 2000Po26)
190W cG $Reduced hindrance factor f{-|n}=3.7 {I1}, |n=6, from
190W 2cG B(E2)(W.u.)=3.9|*10{+-4} {I6}, as given in 2010La16