ADOPTED LEVELS, GAMMAS for 164W

Authors: Balraj Singh and Jun Chen |  Citation: Nucl. Data Sheets 147, 1 (2018) |  Cutoff date: 30-Nov-2017 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-10760 keV 60S(n)= 11400 keV 50S(p)= 2990 keV 40Q(α)= 5278.3 keV 20
Reference: 2017Wa10

References:
  A  168Os α decay (2.1 S)  B  104Pd(63Cu,p2nγ)
  C  106Cd(60Ni,2pγ) 

General Comments:

1973Ea01: 164W produced and identified in 147Sm(24Mg,7N) reaction. Later studies of 164W decay: 1975To05, 1979Ho10, 1994TeZZ.

For theoretical nuclear structure calculations, consult NSR database, for about 10 references. These are listed in the ENSDF dataset as document records

Levels: Quasiparticle orbital labeling scheme (2016Jo01):

Levels: α: νi13/2,α=+1/2; first orbital

Levels: B: νi13/2,α=-1/2; first orbital

Levels: E: ν(h9/2,f7/2),α=+1/2; first orbital

Levels: F: ν(h9/2,f7/2),α=-1/2; first orbital

Levels: γ: ν(h9/2,f7/2),α=+1/2; second orbital

Levels: H: ν(h9/2,f7/2),α=-1/2; second orbital

Levels: e: πh11/2,α=+1/2; first orbital

Levels: f: πh11/2,α=+1/2; first orbital

Q-value: S(2n)=20379 20, S(2p)=3645 13, Q(εp)=3739 27 (2017Wa10)










E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0.0ABC 0+ 6.3 s 2 
% ε = 96.2 12
% α = 3.8 12
     
   331.9 5  BC 2+ 18 ps 12     331.9 5 
  100
E2
     0.0
0+
   822.4 7  BC 4+      490.4 5 
  100
(E2)
   331.9
2+
  1429.2 8  BC 6+      606.6 5 
  100
(E2)
   822.4
4+
  1480.0 10   C (2-)     1148.5 10 
  100

   331.9
2+
  1757.6 8   C (5-)      935.3 5 
  100

   822.4
4+
  1823.5 10   C (4-)      343.6 5 
  1001.2 20 
  100 16 
   26 8 


  1480.0
   822.4
(2-)
4+
  2115.1 9  BC 8+      686.0 5 
  100
(E2)
  1429.2
6+
  2181.4 9   C (7-)      424.4 10 
   751.9 5 
   35 3 
  100 8 

D
  1757.6
  1429.2
(5-)
6+
  2238.6 9   C (6-)      415.5 10 
   480.9 10 
  100 14 
   96 14 


  1823.5
  1757.6
(4-)
(5-)
  2572.6 9   C (8-)      334.0 5 
   391.0 5 
  100 9 
   91 9 


  2238.6
  2181.4
(6-)
(7-)
  2632.4 9   C (9-)      451.0 5 
   517.4 5 
  100 7 
   61 5 


  2181.4
  2115.1
(7-)
8+
  2718.4 10   C (10-)       85.8 20 
   145.7 5 
  <18
  100 8 

(E2)
  2632.4
  2572.6
(9-)
(8-)
  2829.7 10  BC 10+      714.7 5 
  100
(E2)
  2115.1
8+
  2906.0 10   C (11-)      187.4 5 
   273.7 5 
   69 5 
  100 7 

(E2)
  2718.4
  2632.4
(10-)
(9-)
  2906.5 12   C (10+)      791.0 10 
  100

  2115.1
8+
  3119.7 14   C (11-)      487.3 10 
  100

  2632.4
(9-)
  3133.0 11   C (12-)      414.6 5 
  100

  2718.4
(10-)
  3325.7 11   C (13-)      419.7 5 
  100

  2906.0
(11-)
  3438.5 11  BC 12+      531.6 10 
   608.9 5 
   18.4 19 
  100 8 
(E2)

  2906.5
  2829.7
(10+)
10+
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  3673.5 12   C (14-)      540.5 5 
  100

  3133.0
(12-)
  3830.4 12  BC 14+      391.9 5 
  100
(E2)
  3438.5
12+
  3877.4 12   C (15-)      551.7 5 
  100

  3325.7
(13-)
  4292.6 13   C (16-)      619.1 5 
  100

  3673.5
(14-)
  4338.4 13  BC 16+      508.0 5 
  100
(E2)
  3830.4
14+
  4524.6 13   C (17-)      647.2 5 
  100

  3877.4
(15-)
  4902.5 14  BC 18+      564.1 5 
  100
(E2)
  4338.4
16+
  4966.4 14   C (18-)      673.8 5 
  100

  4292.6
(16-)
  5232.2 14   C (19-)      707.6 5 
  100

  4524.6
(17-)
  5523.9 15  BC 20+      621.4 5 
  100
(E2)
  4902.5
18+
  5691.0 15   C (20-)      724.6 5 
  100

  4966.4
(18-)
  5985.9 15   C (21-)      753.7 5 
  100

  5232.2
(19-)
  6190.2 16  BC 22+      666.3 5 
  100
(E2)
  5523.9
20+
  6466.5 18   C (22-)      775.5 10 
  100

  5691.0
(20-)
  6778.5 16   C (23-)      792.6 5 
  100

  5985.9
(21-)
  6900.6 17  BC 24+      710.4 5 
  100
(E2)
  6190.2
22+
  7282.9 21   C (24-)      816.4 10 
  100

  6466.5
(22-)
  7600.9 19   C (25-)      822.4 10 
  100

  6778.5
(23-)
  7665.2 20  BC 26+      764.6 10 
  100
(E2)
  6900.6
24+
  8122.2 29   C (26-)      839.3 20 
  100

  7282.9
(24-)
  8463.5 22  BC 28+      798.3 10 
  100
(E2)
  7665.2
26+
  8468.0 28 ?  C (27-)      867.1 20 ?
  100

  7600.9
(25-)
  9303.6 24  BC (30+)      840.1 10 
  100

  8463.5
28+

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

Jπ(level): As proposed by 2016Jo01, based on multipolarities and ΔJπ deduced from γγ(θ)(DCO) data, and from band associations. Parentheses for some of the levels have been added by evaluators due to lack of strong arguments for Jπ assignments

M(γ): From DCO data in both the reactions, combined with RUL (for E2 and M2) for low-energy transitions, assuming level half-lives are less than 20 ns, typical resolution time in γγ-coincidence experiments. Mult=Q indicates ΔJ=2 transition, most likely E2, while mult=d indicates ΔJ=1 transition. For the ground-state band, the in-band transitions up to 28+ are assigned (E2) based on DCO values supporting stretched quadrupoles, and lack of evidence for any isomers.

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Band Transitions:

E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - g.s. band.
     0.0 0+ 6.3 s 2 
% ε = 96.2 12
% α = 3.8 12
     
   331.9 5  2+ 18 ps 12     331.9 5 
  100
E2
     0.0
0+
   822.4 7  4+      490.4 5 
  100
(E2)
   331.9
2+
  1429.2 8  6+      606.6 5 
  100
(E2)
   822.4
4+
  2115.1 9  8+      686.0 5 
  100
(E2)
  1429.2
6+
  2829.7 10  10+      714.7 5 
  100
(E2)
  2115.1
8+
  3438.5 11  12+      531.6 10 
   608.9 5 
   18.4 19 
  100 8 
(E2)

  2906.5
  2829.7
(10+)
10+
  3830.4 12  14+      391.9 5 
  100
(E2)
  3438.5
12+
  4338.4 13  16+      508.0 5 
  100
(E2)
  3830.4
14+
  4902.5 14  18+      564.1 5 
  100
(E2)
  4338.4
16+
  5523.9 15  20+      621.4 5 
  100
(E2)
  4902.5
18+
  6190.2 16  22+      666.3 5 
  100
(E2)
  5523.9
20+
  6900.6 17  24+      710.4 5 
  100
(E2)
  6190.2
22+
  7665.2 20  26+      764.6 10 
  100
(E2)
  6900.6
24+
  8463.5 22  28+      798.3 10 
  100
(E2)
  7665.2
26+
  9303.6 24  (30+)      840.1 10 
  100

  8463.5
28+
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - Band based on (5-).
  1757.6 8  (5-)        
  2181.4 9  (7-)      424.4 10 
   751.9 5 
   35 3 
  100 8 

D
  1757.6
  1429.2
(5-)
6+
  2632.4 9  (9-)      451.0 5 
   517.4 5 
  100 7 
   61 5 


  2181.4
  2115.1
(7-)
8+
  2906.0 10  (11-)      187.4 5 
   273.7 5 
   69 5 
  100 7 

(E2)
  2718.4
  2632.4
(10-)
(9-)
  3325.7 11  (13-)      419.7 5 
  100

  2906.0
(11-)
  3877.4 12  (15-)      551.7 5 
  100

  3325.7
(13-)
  4524.6 13  (17-)      647.2 5 
  100

  3877.4
(15-)
  5232.2 14  (19-)      707.6 5 
  100

  4524.6
(17-)
  5985.9 15  (21-)      753.7 5 
  100

  5232.2
(19-)
  6778.5 16  (23-)      792.6 5 
  100

  5985.9
(21-)
  7600.9 19  (25-)      822.4 10 
  100

  6778.5
(23-)
  8468.0 28  (27-)      867.1 20 ?
  100

  7600.9
(25-)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - Band based on (2-).
  1480.0 10  (2-)        
  1823.5 10  (4-)      343.6 5 
  1001.2 20 
  100 16 
   26 8 


  1480.0
   822.4
(2-)
4+
  2238.6 9  (6-)      415.5 10 
   480.9 10 
  100 14 
   96 14 


  1823.5
  1757.6
(4-)
(5-)
  2572.6 9  (8-)      334.0 5 
   391.0 5 
  100 9 
   91 9 


  2238.6
  2181.4
(6-)
(7-)
  2718.4 10  (10-)       85.8 20 
   145.7 5 
  <18
  100 8 

(E2)
  2632.4
  2572.6
(9-)
(8-)
  3133.0 11  (12-)      414.6 5 
  100

  2718.4
(10-)
  3673.5 12  (14-)      540.5 5 
  100

  3133.0
(12-)
  4292.6 13  (16-)      619.1 5 
  100

  3673.5
(14-)
  4966.4 14  (18-)      673.8 5 
  100

  4292.6
(16-)
  5691.0 15  (20-)      724.6 5 
  100

  4966.4
(18-)
  6466.5 18  (22-)      775.5 10 
  100

  5691.0
(20-)
  7282.9 21  (24-)      816.4 10 
  100

  6466.5
(22-)
  8122.2 29  (26-)      839.3 20 
  100

  7282.9
(24-)

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Additional Gamma Data:













E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
   331.9 2+ 18 ps 12     331.9 5 E20.0632B(E2)(W.u.)=138 +276-55, α=0.0632

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.00+ 6.3 s 2 
% ε = 96.2 12
% α = 3.8 12
E(level): g.s. band.
   331.92+ 18 ps 12  E(level): g.s. band.
   822.44+   E(level): g.s. band.
  1429.26+   E(level): g.s. band.
  1480.0(2-)   E(level): Band based on (2-).
  1757.6(5-)   E(level): Band based on (5-).
  1823.5(4-)   E(level): Band based on (2-).
  2115.18+   E(level): g.s. band.
  2181.4(7-)   E(level): Band based on (5-).
  2238.6(6-)   E(level): Band based on (2-).
  2572.6(8-)   E(level): Band based on (2-).
  2632.4(9-)   E(level): Band based on (5-).
  2718.4(10-)   E(level): Band based on (2-).
  2829.710+   E(level): g.s. band.
  2906.0(11-)   E(level): Band based on (5-).
  3133.0(12-)   E(level): Band based on (2-).
  3325.7(13-)   E(level): Band based on (5-).
  3438.512+   E(level): g.s. band.
  3673.5(14-)   E(level): Band based on (2-).
  3830.414+   E(level): g.s. band.
  3877.4(15-)   E(level): Band based on (5-).
  4292.6(16-)   E(level): Band based on (2-).
  4338.416+   E(level): g.s. band.
  4524.6(17-)   E(level): Band based on (5-).
  4902.518+   E(level): g.s. band.
E(level)Jπ(level)T1/2(level)Comments
  4966.4(18-)   E(level): Band based on (2-).
  5232.2(19-)   E(level): Band based on (5-).
  5523.920+   E(level): g.s. band.
  5691.0(20-)   E(level): Band based on (2-).
  5985.9(21-)   E(level): Band based on (5-).
  6190.222+   E(level): g.s. band.
  6466.5(22-)   E(level): Band based on (2-).
  6778.5(23-)   E(level): Band based on (5-).
  6900.624+   E(level): g.s. band.
  7282.9(24-)   E(level): Band based on (2-).
  7600.9(25-)   E(level): Band based on (5-).
  7665.226+   E(level): g.s. band.
  8122.2(26-)   E(level): Band based on (2-).
  8463.528+   E(level): g.s. band.
  8468.0(27-)   E(level): Band based on (5-).
  9303.6(30+)   E(level): g.s. band.

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Additional Gamma Comments:

E(level)E(gamma)Comments
   331.9   331.9M(γ): from ΔJ=2, Q (DCO data in both the high-spin reactions) and RUL
  9303.6   840.1E(γ): 825.0 in 104Pd(63Cu,p2nγ) (1991Si08) is in disagreement

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