190W 190W IT DECAY (166 US) 2011ST21,2010LA16 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 2011St21 (also 2012Al05, 2010FaZX, 2009Al30, 2009Al16, 2009Fa06,
190W 2c 2008StZY, 2005Ca02, 2003Po14, 2000Po26): {+190}W nuclide was formed by
190W 3c in-flight fragmentation of {+208}Pb beam at 1 GeV/nucleon
190W 4c from the GSI UNILAC and SIS-18 accelerator complex. Target thickness
190W 5c of 2.526 g/cm{+2}, backed by {+93}Nb foil of thickness 0.223 g/cm{+2}.
190W 6c Fragments separated and identified in flight by the Fragment Separator
190W 7c (FRS) operated in achromatic mode, based on time of flight, B|r and
190W 8c energy loss. Transmitted ions slowed in Al degraders and stopped in a
190W 9c plastic catcher. The stopper was surrounded by the RISING |g-ray
190W Ac spectrometer. Measured E|g, I|g, delayed |g rays, isomer lifetime.
190W Bc {+190}W beam was fully-stripped or mixture of H- or He-like nuclei.
190W d 2001MaZV, 2000ScZY, 2000PoZY: superseded by 2000Po26
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 The level scheme is from 2010La16. 2011St21 provide energies of three
190W 2c gamma rays from the decay of levels up to 1049, (6+)
190W cG E$From 2011St21, unless otherwise stated. Uncertainty of 0.5 keV
190W 2cG for E|g values in 2011St21 are assigned in consultation (in January
190W 3cG 2012) with Zs. Podolyak (one of the authors of 2011St21)
190W cG RI$Deduced by evaluators from intensity balance at each level, with
190W 2cG theoretical total conversion coefficients from BrIcc.
190W cL E$From E|g data, assuming 1 keV uncertainty for E|g when not stated
190W cL J$From the Adopted Levels, essentially, based on data and
190W 2cL interpretation from 2010La16
190W P 1840.6 14 (10-) 166 US 6
190W N 1.0 1.0 1.0
190W PN 3
190W L 0.0 0+
190W L 206.8 5 (2+)
190W G 206.8 5 78.4 3 [E2] 0.275 100
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$others: 207.0 {I3} (2005Ca02), 206 (2010La16), 207 (2000Po26)
190W L 565.1 7 (4+)
190W G 358.3 5 95.15 7 [E2] 0.0510 100
190W S G KC=0.0362 6$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 L 1049.4 9 (6+)
190W G 484.3 5 97.77 3 [E2] 0.0228 100
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$others: 484.0 {I4} (2005Ca02), 484 (2010La16), 485 (2000Po26)
190W L 1642.2 12 (8+)
190W cL E$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 20.4 37[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$from 2005Ca02. Others: E|g=592 (2010La16), 591 (2000Po26). This |g
190W 3cG was not seen by 2009Al30, and not reported by 2011St21, perhaps
190W 4cG due to its weak population.
190W L 1743.6 10 (8+) 111 NS 17 M1
190W 2 L %IT=100
190W cL T$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$PC=0.000377 6
190W cG E$|g reported by 2010La16 only
190W cG RI$deduced based on I|g(102)/I|g(694)=4.8 {I11}/100 {I2} (2010La16)
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$deduced based on I|g(102)/I|g(694)=4.8 {I11}/100 {I2} (2010La16)
190W cG $Reduced hindrance factor f{-|n}=3.7 {I1}, |n=6, from
190W 2cG B(E2)(W.u.)=3.9|*10{+-4} {I6}, as given in 2010La16
190W L 1840.6 14 (10-) 166 US 6 M2
190W 2 L %IT=100
190W cL T$from |g(t) (2010La16). Others: 108 |ms {I9} (2011St21, from |g(t);
190W 2cL earlier values: 106 |ms {I18} in 2009Al30, 105 |ms {I22} in 2009Fa06
190W 3cL 0.06 ms {I+150-3} in 2005Ca02 and |<3.1 ms or 0.39 ms {I+|@-26} in
190W 4cL 2000Po26) seems in disagreement
190W cL $Interpreted by 2010La16 as yrast-trap isomer, not a K-isomer
190W cL $Configuration=|n9/2[505]~#|n11/2[615], K|p=10-
190W 2cL (2010La16, 2005Ca02, 2000Po26)
190W G 97 2.04 M2 48.1
190W S G KC=33.3 5$LC=11.28 16$MC=2.80 4
190W S G NC=0.680 10$OC=0.1076 15$PC=0.00644 9
190W 2 G ECC=33 13 (2010La16)
190W cG M$from |a(exp) deduced by 2010La16 from |g-ray intensity balance
190W cG $Others: 46-keV, (E1), |g ray to 2335, (10+) level in 2000Po26,
190W 2cG with I|g=60 {I30} relative to I|g=62 {I21} for 484|g from (6+) state;
190W 3cG 58.5 keV {I5} with I|g=60 {I13} relative to I|g=21 {I7} for 484|g
190W 4cG (2005Ca02). In later work 58.5-keV peak was assigned to x rays by
190W 5cG 2009Fa06