ADOPTED LEVELS, GAMMAS for 160Lu

Author: N. Nica |  Citation: Nucl. Data Sheets 176, 1 (2021) |  Cutoff date: 1-May-2021 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-4330 keV 60S(n)= 8630 keV 70S(p)= 1730 keV 60Q(α)= 4140 keV 60
Reference: 2021WA16

References:
  A  160Hf ε decay  B  164Ta α decay:NOT OBSERVED
  C  144Sm(19F,3nγ) 

General Comments:

In addition to the well-established 36S activity in 160Lu, 1984Au13 report the existence of an activity with T1/2=40 s 1. The relative position in 160Lu of the two levels corresponding to these activities has not yet been determined. It is assumed here that the 36S activity is the ground state. From the observation that some gammas from low-spin states in the 160Yb daughter decay with shorter half-lives than some from higher-spin states, 1984Au13 infer that the spin of the 36S activity is lower than that of the 40S activity.

All the data on the levels for which no T1/2 values are given are from the 144Sm(19F,3nγ).

1995Hi12 report two γ rays, having Eγ=185.2 and Eγ=193.6, in 160Lu that are associated with the ε+β+ decay of 160Hf. Their placement in the 160Lu level scheme is not known at this time and essentially nothing else is known about the decay scheme of 160Hf to 160Lu. Consequently, no further mention of ε+β+ decay of 160Hf is made here.

For a discussion of the systematic features of signature inversion in (π h11/2)(ν i13/2) bands in nuclides in this mass region, see 1995Li40, 2001Ri19, 2003Ya19.

Q-value: S(2n)=19200 60, S(2p)=6140 60, Q(εp)=3010 60 (2021Wa16)










E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
    ≥0.0    36.1 s 3 
% ε = 100
% α ≤ 1×10-4
     
     0.0+X    40 s 1 
% α = ?
% ε ≤ 100
     
     0.0+Y  C (6+)        
   161.3+Y 10   C (7+)        
   323.4+Y 5   C (8+)     323.4
  100

     0.0+Y
(6+)
   463.0+Y 8   C (9+)     301.7
  100

   161.3+Y
(7+)
   558.5+Y 14   C (9-)        
   625.0+Y 10   C (8+)        
   669.5+Y 14   C (10+)        
   705.7+Y 7   C (10+)     243.1
  382.3
 
 


   463.0+Y
   323.4+Y
(9+)
(8+)
   734.1+Y 14   C (10-)     175.7
  100

   558.5+Y
(9-)
   810.6+Y 13   C (11-)      75.7
  141.1
  252.0
 
 
  100

D
E2
   734.1+Y
   669.5+Y
   558.5+Y
(10-)
(10+)
(9-)
   857.8+Y 8   C (11+)     152.5
  394.3
 
 


   705.7+Y
   463.0+Y
(10+)
(9+)
   933.2+Y 9   C (10+)     227.5
  308.2
 
 


   705.7+Y
   625.0+Y
(10+)
(8+)
  1058.6+Y 13   C (12-)     247.2
  325.4
  100
    8.2 10 
D
E2
   810.6+Y
   734.1+Y
(11-)
(10-)
  1160.6+Y 8   C (12+)     302.3
  454.9
 
 


   857.8+Y
   705.7+Y
(11+)
(10+)
  1217.8+Y 13   C (13-)     159.1
  407.0
  100
   91 9 
D
E2
  1058.6+Y
   810.6+Y
(12-)
(11-)
  1264.3+Y 10 ?  C (13+)        
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  1337.8+Y 9   C (13+)     177.5
  480.3
 
 


  1160.6+Y
   857.8+Y
(12+)
(11+)
  1360.7+Y 8   C (12+)     200.0
  427.5
  503.2
 
 
 



  1160.6+Y
   933.2+Y
   857.8+Y
(12+)
(10+)
(11+)
  1522.4+Y 13   C (14-)     304.5
  463.9
  100
   27 3 
D
E2
  1217.8+Y
  1058.6+Y
(13-)
(12-)
  1661.1+Y 9   C (14+)     499.8
  100

  1160.6+Y
(12+)
  1730.8+Y 11 ?  C (15+)        
  1754.8+Y 13   C (15-)     232.3
  537.1
   83 14 
  100
D
E2
  1522.4+Y
  1217.8+Y
(14-)
(13-)
  1854.4+Y 9   C (14+)     192.7
  493.9
  516.6
  590.1
 
 
 
 




  1661.1+Y
  1360.7+Y
  1337.8+Y
  1264.3+Y
(14+)
(12+)
(13+)
(13+)
  1898.3+Y 9   C (15+)     561.0
  100

  1337.8+Y
(13+)
  2085.4+Y 12   C (16-)     330.1
  563.1
  100
   48 6 
D
E2
  1754.8+Y
  1522.4+Y
(15-)
(14-)
  2371.7+Y 12   C (17-)     286.0
  617.1
   87 14 
  100
D
E2
  2085.4+Y
  1754.8+Y
(16-)
(15-)
  2422.4+Y 10   C (16+)     524.6
  567.5
  691.6
 
 
 



  1898.3+Y
  1854.4+Y
  1730.8+Y
(15+)
(14+)
(15+)
  2727.5+Y 12   C (18-)     355.5
  642.3
  100
   91 9 
D
E2
  2371.7+Y
  2085.4+Y
(17-)
(16-)
  2957.0+Y 12   C (17+)     871.6
  100

  2085.4+Y
(16-)
  3024.2+Y 11   C (18+)     601.8
  100

  2422.4+Y
(16+)
  3040.8+Y 13   C (19-)     313.1
  669.2
   64 8 
  100
D
E2
  2727.5+Y
  2371.7+Y
(18-)
(17-)
  3276.0+Y 12   C (18+)     904.6
  100
D
  2371.7+Y
(17-)
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  3416.6+Y 12   C (19+)     140.7
  392.4
  459.5
  688.9
 
 
 
  100



D
  3276.0+Y
  3024.2+Y
  2957.0+Y
  2727.5+Y
(18+)
(18+)
(17+)
(18-)
  3426.7+Y 13   C (20-)     385.5
  699.3
  100
   87 11 
D
E2
  3040.8+Y
  2727.5+Y
(19-)
(18-)
  3657.0+Y 12   C (20+)     632.8
  100

  3024.2+Y
(18+)
  3682.9+Y 12   C (20+)     266.0
  407.2
  100
 
D

  3416.6+Y
  3276.0+Y
(19+)
(18+)
  3752.2+Y 13   C (21-)     325.5
  711.7
   65 9 
  100
D
E2
  3426.7+Y
  3040.8+Y
(20-)
(19-)
  3975.0+Y 12   C (21+)     292.0
  318.0
  558.3
  100
 
   51 10 
D

E2
  3682.9+Y
  3657.0+Y
  3416.6+Y
(20+)
(20+)
(19+)
  4175.5+Y 13   C (22-)     423.1
  748.4
  100
   83 12 
D
E2
  3752.2+Y
  3426.7+Y
(21-)
(20-)
  4287.9+Y 12   C (22+)     312.9
  605.3
  100
   59 14 
D
E2
  3975.0+Y
  3682.9+Y
(21+)
(20+)
  4392.0+Y 13   C (22+)     735.0
  100

  3657.0+Y
(20+)
  4520.1+Y 13   C (23-)     344.2
  768.5
   65 13 
  100
D
E2
  4175.5+Y
  3752.2+Y
(22-)
(21-)
  4608.8+Y 12   C (23+)     320.5
  633.6
  100
   87 27 
D
E2
  4287.9+Y
  3975.0+Y
(22+)
(21+)
  4961.4+Y 13   C (24+)     352.3
  674.0
  100
   69 21 
D
E2
  4608.8+Y
  4287.9+Y
(23+)
(22+)
  5001.8+Y 14   C (24-)     481.7
  826.2
 
 


  4520.1+Y
  4175.5+Y
(23-)
(22-)
  5311.7+Y 13   C (25+)     349.8
  702.6
  100
   94 19 
D
E2
  4961.4+Y
  4608.8+Y
(24+)
(23+)
  5379.8+Y 14   C (25-)     859.7
  100
E2
  4520.1+Y
(23-)
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  5695.0+Y 13   C (26+)     382.5
  734.4
  100
   87 26 
D
E2
  5311.7+Y
  4961.4+Y
(25+)
(24+)

E(level): From least-squares fit to Eγ’s assuming 0.5 keV uncertainty for all Eγ’s.

Jπ(level): Where given, the Jπ values are those suggested by 2012Wa17 also previously suggested in part by 2001Yi03 and 1995Su11 from 144Sm(19F,3nγ). See the comments there.

E(γ): From 2012Wa17 (144Sm(19F,3nγ))

I(γ): From 2001Yi03 (144Sm(19F,3nγ)) who give measured Iγ values with no unc as well as branching ratio values with unc (adopted conventionally by evaluator with the smaller intensity)

M(γ): Adopted by evaluator based on measured DCO ratio values by 2001Yi03 (with one exception of measurement done by 2012Wa17 noted separately). Based on the level scheme Jπ assignments most of the d values are rather M1 (with possible admixture of E2) while the Q values are E2

Back to top

Band Transitions:

E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - πh11/2~#νi13/2,α=1
   558.5+Y 14  (9-)        
   810.6+Y 13  (11-)        
  1217.8+Y 13  (13-)        
  1754.8+Y 13  (15-)        
  2371.7+Y 12  (17-)     286.0
  617.1
   87 14 
  100
D
E2
  2085.4+Y
  1754.8+Y
(16-)
(15-)
  3040.8+Y 13  (19-)     313.1
  669.2
   64 8 
  100
D
E2
  2727.5+Y
  2371.7+Y
(18-)
(17-)
  3752.2+Y 13  (21-)        
  4520.1+Y 13  (23-)        
  5379.8+Y 14  (25-)        
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - πh11/2~#νi13/2,α=0.
   734.1+Y 14  (10-)        
  1058.6+Y 13  (12-)        
  1522.4+Y 13  (14-)        
  2085.4+Y 12  (16-)        
  2727.5+Y 12  (18-)     355.5
  642.3
  100
   91 9 
D
E2
  2371.7+Y
  2085.4+Y
(17-)
(16-)
  3426.7+Y 13  (20-)     385.5
  699.3
  100
   87 11 
D
E2
  3040.8+Y
  2727.5+Y
(19-)
(18-)
  4175.5+Y 13  (22-)        
  5001.8+Y 14  (24-)        
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - π7/2[523]~#ν(3/2[521]~#ni13/22),α=1.
  2957.0+Y 12  (17+)        
  3416.6+Y 12  (19+)        
  3975.0+Y 12  (21+)        
  4608.8+Y 12  (23+)        
  5311.7+Y 13  (25+)     349.8
  702.6
  100
   94 19 
D
E2
  4961.4+Y
  4608.8+Y
(24+)
(23+)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 4 - π7/2[523]~#ν(3/2[521]~#ni13/22),α=0.
  3276.0+Y 12  (18+)        
  3682.9+Y 12  (20+)        
  4287.9+Y 12  (22+)        
  4961.4+Y 13  (24+)        
  5695.0+Y 13  (26+)     382.5
  734.4
  100
   87 26 
D
E2
  5311.7+Y
  4961.4+Y
(25+)
(24+)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 5 - π1/2[411]~#ν1/2[660],α=0.
   625.0+Y 10  (8+)        
   933.2+Y 9  (10+)        
  1360.7+Y 8  (12+)        
  1854.4+Y 9  (14+)        
  2422.4+Y 10  (16+)     524.6
  567.5
  691.6
 
 
 



  1898.3+Y
  1854.4+Y
  1730.8+Y
(15+)
(14+)
(15+)
  3024.2+Y 11  (18+)     601.8
  100

  2422.4+Y
(16+)
  3657.0+Y 12  (20+)        
  4392.0+Y 13  (22+)        
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 6 - π5/2[402]~#ν1/2[660],α=1.
   161.3+Y 10  (7+)        
   463.0+Y 8  (9+)        
   857.8+Y 8  (11+)        
  1337.8+Y 9  (13+)        
  1898.3+Y 9  (15+)     561.0
  100

  1337.8+Y
(13+)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 7 - π5/2[402]~#ν1/2[660],α=0.
     0.0+Y (6+)        
   323.4+Y 5  (8+)        
   705.7+Y 7  (10+)        
  1160.6+Y 8  (12+)        
  1661.1+Y 9  (14+)     499.8
  100

  1160.6+Y
(12+)

Back to top

Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.0 36.1 s 3 
% ε = 100
% α ≤ 1×10-4
E(level): 1984Au13 report two activities in 160Lu, with half-lives of 36.2 s 3 and 40 s 1.
     0.0+X 40 s 1 
% α = ?
% ε ≤ 100
E(level): 1984Au13 report two activities in 160Lu, with half-lives of 36.2 s 3 and 40 s 1.
     0.0+Y(6+)   E(level): π5/2[402]~#ν1/2[660],α=0.
   161.3+Y(7+)   E(level): π5/2[402]~#ν1/2[660],α=1.
   323.4+Y(8+)   E(level): π5/2[402]~#ν1/2[660],α=0.
   463.0+Y(9+)   E(level): π5/2[402]~#ν1/2[660],α=1.
   558.5+Y(9-)   E(level): πh11/2~#νi13/2,α=1.
   625.0+Y(8+)   E(level): π1/2[411]~#ν1/2[660],α=0.
   669.5+Y(10+)   Possible isomeric state based on πh11/2~#νh9/2 configuration (2012Wa17).
   705.7+Y(10+)   E(level): π5/2[402]~#ν1/2[660],α=0.
   734.1+Y(10-)   E(level): πh11/2~#νi13/2,α=0.
   810.6+Y(11-)   E(level): πh11/2~#νi13/2,α=1.
   857.8+Y(11+)   E(level): π5/2[402]~#ν1/2[660],α=1.
   933.2+Y(10+)   E(level): π1/2[411]~#ν1/2[660],α=0.
  1058.6+Y(12-)   E(level): πh11/2~#νi13/2,α=0.
  1160.6+Y(12+)   E(level): π5/2[402]~#ν1/2[660],α=0.
  1217.8+Y(13-)   E(level): πh11/2~#νi13/2,α=1.
  1337.8+Y(13+)   E(level): π5/2[402]~#ν1/2[660],α=1.
  1360.7+Y(12+)   E(level): π1/2[411]~#ν1/2[660],α=0.
  1522.4+Y(14-)   E(level): πh11/2~#νi13/2,α=0.
  1661.1+Y(14+)   E(level): π5/2[402]~#ν1/2[660],α=0.
  1754.8+Y(15-)   E(level): πh11/2~#νi13/2,α=1.
  1854.4+Y(14+)   E(level): π1/2[411]~#ν1/2[660],α=0.
  1898.3+Y(15+)   E(level): π5/2[402]~#ν1/2[660],α=1.
  2085.4+Y(16-)   E(level): πh11/2~#νi13/2,α=0.
E(level)Jπ(level)T1/2(level)Comments
  2371.7+Y(17-)   E(level): πh11/2~#νi13/2,α=1.
  2422.4+Y(16+)   E(level): π1/2[411]~#ν1/2[660],α=0.
  2727.5+Y(18-)   E(level): πh11/2~#νi13/2,α=0.
  2957.0+Y(17+)   E(level): π7/2[523]~#ν(3/2[521]~#ni13/22),α=1.
  3024.2+Y(18+)   E(level): π1/2[411]~#ν1/2[660],α=0.
  3040.8+Y(19-)   E(level): πh11/2~#νi13/2,α=1.
  3276.0+Y(18+)   E(level): π7/2[523]~#ν(3/2[521]~#ni13/22),α=0.
  3416.6+Y(19+)   E(level): π7/2[523]~#ν(3/2[521]~#ni13/22),α=1.
  3426.7+Y(20-)   E(level): πh11/2~#νi13/2,α=0.
  3657.0+Y(20+)   E(level): π1/2[411]~#ν1/2[660],α=0.
  3682.9+Y(20+)   E(level): π7/2[523]~#ν(3/2[521]~#ni13/22),α=0.
  3752.2+Y(21-)   E(level): πh11/2~#νi13/2,α=1.
  3975.0+Y(21+)   E(level): π7/2[523]~#ν(3/2[521]~#ni13/22),α=1.
  4175.5+Y(22-)   E(level): πh11/2~#νi13/2,α=0.
  4287.9+Y(22+)   E(level): π7/2[523]~#ν(3/2[521]~#ni13/22),α=0.
  4392.0+Y(22+)   E(level): π1/2[411]~#ν1/2[660],α=0.
  4520.1+Y(23-)   E(level): πh11/2~#νi13/2,α=1.
  4608.8+Y(23+)   E(level): π7/2[523]~#ν(3/2[521]~#ni13/22),α=1.
  4961.4+Y(24+)   E(level): π7/2[523]~#ν(3/2[521]~#ni13/22),α=0.
  5001.8+Y(24-)   E(level): πh11/2~#νi13/2,α=0.
  5311.7+Y(25+)   E(level): π7/2[523]~#ν(3/2[521]~#ni13/22),α=1.
  5379.8+Y(25-)   E(level): πh11/2~#νi13/2,α=1.
  5695.0+Y(26+)   E(level): π7/2[523]~#ν(3/2[521]~#ni13/22),α=0.

Back to top

Additional Gamma Comments:

E(level)E(gamma)Comments
   810.6+Y   141.1M(γ): From DCO ratio measured by 2012Wa17
  1854.4+Y   516.6E(γ): 524.6 given by 2012Wa17 is incorrect (see (144Sm(19F,3nγ) dataset)

Back to top