ADOPTED LEVELS, GAMMAS for 168Os

Author: Coral M. Baglin |  Citation: Nucl. Data Sheets 111, 1807 (2010) |  Cutoff date: 15-Jun-2010 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-1.127×104 keV 8S(n)= 1.156×104 keV 8S(p)= 2.43×103 keV SYQ(α)= 5816 keV 3
Reference: 2012WA38

References:
  A  172Pt α decay  B  112Sn(58Ni,2pγ),

General Comments:

Identification: 1982En03 observed 168Os as the α daughter of 172Pt; this assignment was confirmed through cross-bombardments, excitation functions and α-energy systematics (1978Ca11,1978Sc26,1982De11,1984Sc06).

See 1983Al09, 1984Al36, and 1984HaZD for analyses of mass and proton-stability data for 168Os.

Q-value: Note: Current evaluation has used the following Q record

Q-value: ΔQ(β)=150, ΔS(p)=50 (2003Au03, 2009AuZZ).










E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
     0.0AB 0+ 2.1 s 1 
% ε = 57 4
% α = 43 4
     
   341.20 20  B 2+      341.2 2 
  100

     0.0
0+
   857.3 3  B 4+      516.1 2 
  100

   341.20
2+
  1469.6 4  B (3-)      611.8 5 
  1128.6 10 
  100 22 
   33 4 


   857.3
   341.20
4+
2+
  1499.1 4  B 6+      641.8 2 
  100 3 
(E2)
   857.3
4+
  1736.8 4  B (5-)      237.7 10 
   267.1 2 
   879.5 2 
   11.4 18 
   39 9 
  100 11 


D
  1499.1
  1469.6
   857.3
6+
(3-)
4+
  2154.1 4  B (7-)      417.3 2 
   655.2 10 
  100 8 
    8 3 
(E2)

  1736.8
  1499.1
(5-)
6+
  2222.7 4  B 8+      723.6 2 
  100

  1499.1
6+
  2298.6 9  B (8-)      144.6 10 
  100

  2154.1
(7-)
  2589.4 5  B (9-)      435.3 2 
  100
(E2)
  2154.1
(7-)
  2730.5 6  B (10-)      140.9 5 
   432.1 10 
  100 12 
   29 13 


  2589.4
  2298.6
(9-)
(8-)
  2937.8 5  B (11-)      207.2 10 
   348.4 2 
   22 9 
  100 11 


  2730.5
  2589.4
(10-)
(9-)
  2982.7 5  B 10+      760.1 2 
  100

  2222.7
8+
  3128.8 6  B (12-)      398.3 2 
  100

  2730.5
(10-)
  3363.7 5  B (13-)      425.9 2 
  100

  2937.8
(11-)
  3365.1 5  B (12+)      235.9 10 
   382.4 2 
   427.1 10 
    9 3 
  100 12 
   32 12 



  3128.8
  2982.7
  2937.8
(12-)
10+
(11-)
  3693.9 6  B (14-)      565.1 2 
  100

  3128.8
(12-)
  3730.5 5  B (14+)      365.4 2 
  100

  3365.1
(12+)
  3942.6 6  B (15-)      578.9 2 
  100

  3363.7
(13-)
  4261.4 6  B (16+)      530.9 2 
  100

  3730.5
(14+)
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
  4382.1 8  B (16-)      688.2 5 
  100

  3693.9
(14-)
  4633.5 8  B (17-)      690.9 5 
  100

  3942.6
(15-)
  4886.7 6  B (18+)      625.3 2 
  100

  4261.4
(16+)
  5158.4 13  B (18-)      776.3 10 
  100

  4382.1
(16-)

E(level): From least-squares fit to Eγ.

Jπ(level): From 112Sn(58Ni,2pγ), based on observed band structure and configuration assignments deduced from comparison of experimental Routhians and alignments with cranked shell-model calculations, except as noted.

M(γ): From γ asymmetry ratio in 112Sn(58Ni,2pγ), assigning Δπ=(no) to intraband transitions.

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Band Transitions:

E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - GS band.
     0.0 0+ 2.1 s 1 
% ε = 57 4
% α = 43 4
     
   341.20 20  2+      341.2 2 
  100

     0.0
0+
   857.3 3  4+      516.1 2 
  100

   341.20
2+
  1499.1 4  6+      641.8 2 
  100 3 
(E2)
   857.3
4+
  2222.7 4  8+      723.6 2 
  100

  1499.1
6+
  2982.7 5  10+      760.1 2 
  100

  2222.7
8+
  3365.1 5  (12+)      235.9 10 
   382.4 2 
   427.1 10 
    9 3 
  100 12 
   32 12 



  3128.8
  2982.7
  2937.8
(12-)
10+
(11-)
  3730.5 5  (14+)      365.4 2 
  100

  3365.1
(12+)
  4261.4 6  (16+)      530.9 2 
  100

  3730.5
(14+)
  4886.7 6  (18+)      625.3 2 
  100

  4261.4
(16+)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - AE, α=1 band.
  1469.6 4  (3-)        
  1736.8 4  (5-)      237.7 10 
   267.1 2 
   879.5 2 
   11.4 18 
   39 9 
  100 11 


D
  1499.1
  1469.6
   857.3
6+
(3-)
4+
  2154.1 4  (7-)      417.3 2 
   655.2 10 
  100 8 
    8 3 
(E2)

  1736.8
  1499.1
(5-)
6+
  2589.4 5  (9-)      435.3 2 
  100
(E2)
  2154.1
(7-)
  2937.8 5  (11-)      207.2 10 
   348.4 2 
   22 9 
  100 11 


  2730.5
  2589.4
(10-)
(9-)
  3363.7 5  (13-)      425.9 2 
  100

  2937.8
(11-)
  3942.6 6  (15-)      578.9 2 
  100

  3363.7
(13-)
  4633.5 8  (17-)      690.9 5 
  100

  3942.6
(15-)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - AF, α=0 band.
  2298.6 9  (8-)        
  2730.5 6  (10-)      140.9 5 
   432.1 10 
  100 12 
   29 13 


  2589.4
  2298.6
(9-)
(8-)
  3128.8 6  (12-)      398.3 2 
  100

  2730.5
(10-)
  3693.9 6  (14-)      565.1 2 
  100

  3128.8
(12-)
  4382.1 8  (16-)      688.2 5 
  100

  3693.9
(14-)
  5158.4 13  (18-)      776.3 10 
  100

  4382.1
(16-)

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Additional Gamma Data:













E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityConversion
Coefficient
Additional Data
  1499.1 6+      641.8 2 (E2)0.01265α=0.01265
  2154.1 (7-)      417.3 2 (E2)0.0361α=0.0361
  2589.4 (9-)      435.3 2 (E2)0.0324α=0.0324

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.00+ 2.1 s 1 
% ε = 57 4
% α = 43 4
%α: weighted average of 49 3 from matching of 172Pt-168Os velocity distributions following recoil-mass selection of the evaporation residues formed by neutron emission from 176Pt (4n) (1982En03), 40 3 from (1996Pa01) and 36 4 (2004GoZZ).
E(level): %α: weighted average of 49 3 from matching of 172Pt-168Os velocity distributions following recoil-mass selection of the evaporation residues formed by neutron emission from 176Pt (4n) (1982En03), 40 3 from (1996Pa01) and 36 4 (2004GoZZ). GS band.
   341.202+   E(level): GS band.
   857.34+   E(level): GS band.
  1469.6(3-)   E(level): AE, α=1 band.
  1499.16+   E(level): GS band.
  1736.8(5-)   E(level): AE, α=1 band.
  2154.1(7-)   E(level): AE, α=1 band.
  2222.78+   E(level): GS band.
  2298.6(8-)   E(level): AF, α=0 band.
  2589.4(9-)   E(level): AE, α=1 band.
  2730.5(10-)   E(level): AF, α=0 band.
  2937.8(11-)   E(level): AE, α=1 band.
  2982.710+   E(level): GS band.
  3128.8(12-)   E(level): AF, α=0 band.
  3363.7(13-)   E(level): AE, α=1 band.
  3365.1(12+)   E(level): GS band.
  3693.9(14-)   E(level): AF, α=0 band.
  3730.5(14+)   E(level): GS band.
  3942.6(15-)   E(level): AE, α=1 band.
  4261.4(16+)   E(level): GS band.
  4382.1(16-)   E(level): AF, α=0 band.
  4633.5(17-)   E(level): AE, α=1 band.
  4886.7(18+)   E(level): GS band.
  5158.4(18-)   E(level): AF, α=0 band.

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