ADOPTED LEVELS, GAMMAS for 157Yb

Author: N. Nica |  Citation: Nucl. Data Sheets 132, 1 (2016) |  Cutoff date: 4-Dec-2015 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-6981 keV 14S(n)= 8227 keV 14S(p)= 3876 keV 18Q(α)= 4622 keV 6
S(2n)= 19062 keV 14S(2p)= 5791 keV 18Q(EC)= 5.29×103 keV 3Q(ECp)= 3.50×103 keV 3
Reference: 2017WA10

General Comments:

Data for all of the excited levels are from 144Sm(16O,3nγ).

The unplaced γ’s from the 157Lu ε decay are not repeated here, see that decay.









E(level)
(keV)		Jπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0.0 7/2- 38.6 s 10 
% ε = 99.5
% α = 0.5
     
   205.50 10  (9/2-)      205.5 1 
  100
(M1+E2)
     0.0
7/2-
   494.40 10  11/2-      288.9 5 
   494.4 1 
    2.6 3 
  100 1 
(M1+E2)
Q
   205.50
     0.0
(9/2-)
7/2-
   528.8 3  13/2+ 45 ns     34.4S
   323.3 3 
 
  100


   494.40
   205.50
11/2-
(9/2-)
   721.60 14  (13/2-)      516.1 1 
  100
E2
   205.50
(9/2-)
  1019.6 3  17/2+      490.8 1 
  100
E2
   528.8
13/2+
  1063.80 14  15/2-      569.4 1 
  100
E2
   494.40
11/2-
  1328.80 18  (17/2-)      607.2 1 
  100
E2
   721.60
(13/2-)
  1563.3 3  21/2+      543.7 1 
  100
E2
  1019.6
17/2+
  1652.5 4       632.9 3 
  100

  1019.6
17/2+
  1679.20 17  19/2-      615.4 1 
  100
E2
  1063.80
15/2-
  1998.5 4  (21/2-)      669.7 3 
  100
E2
  1328.80
(17/2-)
  2149.9 3  25/2+      586.6 1 
  100
E2
  1563.3
21/2+
  2192.7 4  23/2(+)      540.2 5 
   629.4 3 
   28 8 
  100 2 


  1652.5
  1563.3

21/2+
  2333.6 3  23/2-      654.4 3 
  100
E2
  1679.20
19/2-
  2526.8 4  (23/2-)      963.5 3 
  100
D
  1563.3
21/2+
  2579.9 4  27/2(+)      387.2 3 
   430.0 1 
   72 2 
  100 3 
E2

  2192.7
  2149.9
23/2(+)
25/2+
  2742.3 5  (25/2-)      743.8 3 
  100
E2
  1998.5
(21/2-)
  2822.6 4  29/2+      672.7 1 
  100
E2
  2149.9
25/2+
  2879.3 6       729.4 5 
  100

  2149.9
25/2+
  2901.1 4  27/2-      374.3 5 
   567.5 3 
   751.2 5 
   33 3 
  100 13 
   22 2 
E2
E2

  2526.8
  2333.6
  2149.9
(23/2-)
23/2-
25/2+
  2968.5 4  (27/2-)      441.7 5 
   818.6 3 
   21 5 
  100 2 

D
  2526.8
  2149.9
(23/2-)
25/2+
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  3372.3 4  31/2(+)      549.7 3 
   792.4 1 
   17 1 
  100 2 

E2
  2822.6
  2579.9
29/2+
27/2(+)
  3390.7 7  (29/2-)      648.4 5 
  100
E2
  2742.3
(25/2-)
  3441.5 5  31/2-      540.4 3 
  100
E2
  2901.1
27/2-
  3501.3 4  33/2+      678.7 1 
  100
E2
  2822.6
29/2+
  3661.9 7       693.4 5 
  100

  2968.5
(27/2-)
  3690.1 5  (33/2-)      317.8 3 
  100
D
  3372.3
31/2(+)
  3983.1 9  (33/2-)      592.4 5 
  100

  3390.7
(29/2-)
  4071.2 4  35/2(+)      569.9 3 
   698.9 3 
  100 11 
   80 9 
D
E2
  3501.3
  3372.3
33/2+
31/2(+)
  4086.0 6  35/2-      644.5 3 
  100
E2
  3441.5
31/2-
  4182.6 4  37/2+      681.3 1 
  100
E2
  3501.3
33/2+
  4447.5 5  (37/2-)      757.4 3 
  100
E2
  3690.1
(33/2-)
  4703.9 4  39/2(+)      521.3 3 
   632.7 3 
   65 1 
  100 1 
D
E2
  4182.6
  4071.2
37/2+
35/2(+)
  4799.6 8  (39/2-)      713.6 5 
  100

  4086.0
35/2-
  4840.0 6       657.4 5 
  100

  4182.6
37/2+
  4867.7 4  41/2+      685.1 1 
  100
E2
  4182.6
37/2+
  5119.0 4  43/2(+)      251.3 5 
   415.1 3 
    9 1 
  100 2 

E2
  4867.7
  4703.9
41/2+
39/2(+)
  5142.9 6  (41/2-)      695.4 3 
  100
E2
  4447.5
(37/2-)
  5198.4 6      1015.8 5 
  100

  4182.6
37/2+
  5491.8 5  45/2+      372.8 3 
   624.1 3 
   75 6 
  100 6 

E2
  5119.0
  4867.7
43/2(+)
41/2+
  5662.8 5       795.1 3 
  100

  4867.7
41/2+
  5742.3 6  (45/2-)      599.4 3 
   623.3 5 
  100 6 
   19 2 
E2

  5142.9
  5119.0
(41/2-)
43/2(+)
  5970.9 7       479.1 5 
  100

  5491.8
45/2+
  6253.7 6  49/2+      761.9 3 
  100
E2
  5491.8
45/2+
  6359.5 6  (49/2-)      617.2 3 
  100
E2
  5742.3
(45/2-)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  6986.8 6  53/2+      733.1 3 
  100
E2
  6253.7
49/2+
  7185.1 8  (53/2-)      825.6 5 
  100

  6359.5
(49/2-)
  7907.5 10  (57/2-)      722.4 5 
  100

  7185.1
(53/2-)

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

Jπ(level): Above the 13/2+ level assignments are from level sequences and DCO’s (2013Xu05).

M(γ): Authors (2013Xu05) give DCO values, but do not make multipolarity assignments. Expected ratios are >1.0 for ΔJ=2, Q and <0.8 for ΔJ=1, dipole transition, with gates on ΔJ=2, quadrupole transitions. Stretched quadrupole transitions can be interpreted as E2’s.

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Band Transitions:

E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - γ cascade
  2526.8 4  (23/2-)        
  2968.5 4  (27/2-)      441.7 5 
   818.6 3 
   21 5 
  100 2 

D
  2526.8
  2149.9
(23/2-)
25/2+
  3661.9 7       693.4 5 
  100

  2968.5
(27/2-)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - νh9/2 band
   205.50 10  (9/2-)        
   721.60 14  (13/2-)      516.1 1 
  100
E2
   205.50
(9/2-)
  1328.80 18  (17/2-)      607.2 1 
  100
E2
   721.60
(13/2-)
  1998.5 4  (21/2-)      669.7 3 
  100
E2
  1328.80
(17/2-)
  2742.3 5  (25/2-)      743.8 3 
  100
E2
  1998.5
(21/2-)
  3390.7 7  (29/2-)      648.4 5 
  100
E2
  2742.3
(25/2-)
  3983.1 9  (33/2-)      592.4 5 
  100

  3390.7
(29/2-)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - νf7/2, g.s. band
     0.0 7/2- 38.6 s 10 
% ε = 99.5
% α = 0.5
     
   494.40 10  11/2-      288.9 5 
   494.4 1 
    2.6 3 
  100 1 
(M1+E2)
Q
   205.50
     0.0
(9/2-)
7/2-
  1063.80 14  15/2-      569.4 1 
  100
E2
   494.40
11/2-
  1679.20 17  19/2-      615.4 1 
  100
E2
  1063.80
15/2-
  2333.6 3  23/2-      654.4 3 
  100
E2
  1679.20
19/2-
  2901.1 4  27/2-      374.3 5 
   567.5 3 
   751.2 5 
   33 3 
  100 13 
   22 2 
E2
E2

  2526.8
  2333.6
  2149.9
(23/2-)
23/2-
25/2+
  3441.5 5  31/2-      540.4 3 
  100
E2
  2901.1
27/2-
  4086.0 6  35/2-      644.5 3 
  100
E2
  3441.5
31/2-
  4799.6 8  (39/2-)      713.6 5 
  100

  4086.0
35/2-
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 4 - νi13/2 band
   528.8 3  13/2+ 45 ns      
  1019.6 3  17/2+      490.8 1 
  100
E2
   528.8
13/2+
  1563.3 3  21/2+      543.7 1 
  100
E2
  1019.6
17/2+
  2149.9 3  25/2+      586.6 1 
  100
E2
  1563.3
21/2+
  2822.6 4  29/2+      672.7 1 
  100
E2
  2149.9
25/2+
  3501.3 4  33/2+      678.7 1 
  100
E2
  2822.6
29/2+
  4182.6 4  37/2+      681.3 1 
  100
E2
  3501.3
33/2+
  4867.7 4  41/2+      685.1 1 
  100
E2
  4182.6
37/2+
  5491.8 5  45/2+      372.8 3 
   624.1 3 
   75 6 
  100 6 

E2
  5119.0
  4867.7
43/2(+)
41/2+
  6253.7 6  49/2+      761.9 3 
  100
E2
  5491.8
45/2+
  6986.8 6  53/2+      733.1 3 
  100
E2
  6253.7
49/2+
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 5 - γ cascade based on 23/2+
  2192.7 4  23/2(+)        
  2579.9 4  27/2(+)      387.2 3 
   430.0 1 
   72 2 
  100 3 
E2

  2192.7
  2149.9
23/2(+)
25/2+
  3372.3 4  31/2(+)      549.7 3 
   792.4 1 
   17 1 
  100 2 

E2
  2822.6
  2579.9
29/2+
27/2(+)
  4071.2 4  35/2(+)      569.9 3 
   698.9 3 
  100 11 
   80 9 
D
E2
  3501.3
  3372.3
33/2+
31/2(+)
  4703.9 4  39/2(+)      521.3 3 
   632.7 3 
   65 1 
  100 1 
D
E2
  4182.6
  4071.2
37/2+
35/2(+)
  5119.0 4  43/2(+)      251.3 5 
   415.1 3 
    9 1 
  100 2 

E2
  4867.7
  4703.9
41/2+
39/2(+)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 6 - γ cascade based on (33/2-)
  3690.1 5  (33/2-)        
  4447.5 5  (37/2-)      757.4 3 
  100
E2
  3690.1
(33/2-)
  5142.9 6  (41/2-)      695.4 3 
  100
E2
  4447.5
(37/2-)
  5742.3 6  (45/2-)      599.4 3 
   623.3 5 
  100 6 
   19 2 
E2

  5142.9
  5119.0
(41/2-)
43/2(+)
  6359.5 6  (49/2-)      617.2 3 
  100
E2
  5742.3
(45/2-)
  7185.1 8  (53/2-)      825.6 5 
  100

  6359.5
(49/2-)
  7907.5 10  (57/2-)      722.4 5 
  100

  7185.1
(53/2-)

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Additional Gamma Data:













E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
   205.50 (9/2-)      205.5 1 (M1+E2)0.344α=0.344 99, α(K)=0.26 11, α(L)=0.064 8, α(M)=0.0148 24, α(N)=0.0034 5, α(O)=0.00045 3, α(P)=1.48×10-5 77
   494.40 11/2-      288.9 5 (M1+E2)0.129α=0.129 46, α(K)=0.102 44, α(L)=0.0203 17, α(M)=0.00468 24, α(N)=0.00109 7, α(O)=0.000147 19, α(P)=5.9×10-6 30
   721.60 (13/2-)      516.1 1 E20.01646α=0.01646, α(K)=0.01300 19, α(L)=0.00268 4, α(M)=0.000619 9, α(N)=0.0001438 21, α(O)=1.91×10-5 3, α(P)=7.15E-7 10
  1019.6 17/2+      490.8 1 E20.0187α=0.0187, α(K)=0.01467 21, α(L)=0.00312 5, α(M)=0.000722 11, α(N)=0.0001675 24, α(O)=2.22×10-5 4, α(P)=8.03E-7 12
  1063.80 15/2-      569.4 1 E20.01291α=0.01291, α(K)=0.01031 15, α(L)=0.00202 3, α(M)=0.000463 7, α(N)=0.0001077 15, α(O)=1.447×10-5 21, α(P)=5.71E-7 8
  1328.80 (17/2-)      607.2 1 E20.01107α=0.01107, α(K)=0.00890 13, α(L)=0.001683 24, α(M)=0.000386 6, α(N)=8.97×10-5 13, α(O)=1.213E-5 17, α(P)=4.95E-7 7
  1563.3 21/2+      543.7 1 E20.01446α=0.01446, α(K)=0.01149 16, α(L)=0.00230 4, α(M)=0.000530 8, α(N)=0.0001232 18, α(O)=1.648×10-5 23, α(P)=6.34E-7 9
  1679.20 19/2-      615.4 1 E20.01072α=0.01072, α(K)=0.00863 12, α(L)=0.001622 23, α(M)=0.000371 6, α(N)=8.65×10-5 13, α(O)=1.170E-5 17, α(P)=4.80E-7 7
  1998.5 (21/2-)      669.7 3 E20.00881α=0.00881, α(K)=0.00714 10, α(L)=0.001292 19, α(M)=0.000295 5, α(N)=6.86×10-5 10, α(O)=9.35E-6 14, α(P)=3.99E-7 6
  2149.9 25/2+      586.6 1 E20.01202α=0.01202, α(K)=0.00963 14, α(L)=0.00185 3, α(M)=0.000425 6, α(N)=9.89×10-5 14, α(O)=1.333E-5 19, α(P)=5.34E-7 8
  2333.6 23/2-      654.4 3 E20.00929α=0.00929, α(K)=0.00752 11, α(L)=0.001373 20, α(M)=0.000314 5, α(N)=7.30×10-5 11, α(O)=9.93E-6 14, α(P)=4.19E-7 6
  2579.9 27/2(+)      387.2 3 E20.0352α=0.0352, α(K)=0.0266 4, α(L)=0.00665 10, α(M)=0.001557 23, α(N)=0.000360 6, α(O)=4.66×10-5 7, α(P)=1.419E-6 20
  2742.3 (25/2-)      743.8 3 E20.00695α=0.00695, α(K)=0.00568 8, α(L)=0.000985 14, α(M)=0.000224 4, α(N)=5.22×10-5 8, α(O)=7.16E-6 10, α(P)=3.18E-7 5
  2822.6 29/2+      672.7 1 E20.00872α=0.00872, α(K)=0.00707 10, α(L)=0.001276 18, α(M)=0.000291 4, α(N)=6.78×10-5 10, α(O)=9.25E-6 13, α(P)=3.95E-7 6
  2901.1 27/2-      374.3 5 E20.0388α=0.0388, α(K)=0.0291 5, α(L)=0.00745 11, α(M)=0.00175 3, α(N)=0.000405 6, α(O)=5.21×10-5 8, α(P)=1.543E-6 23
27/2-      567.5 3 E20.01302α=0.01302, α(K)=0.01039 15, α(L)=0.00203 3, α(M)=0.000468 7, α(N)=0.0001087 16, α(O)=1.461×10-5 21, α(P)=5.75E-7 8
  3372.3 31/2(+)      792.4 1 E20.00605α=0.00605, α(K)=0.00497 7, α(L)=0.000841 12, α(M)=0.000191 3, α(N)=4.45×10-5 7, α(O)=6.13E-6 9, α(P)=2.79E-7 4
  3390.7 (29/2-)      648.4 5 E20.00949α=0.00949, α(K)=0.00767 11, α(L)=0.001408 20, α(M)=0.000322 5, α(N)=7.49×10-5 11, α(O)=1.018E-5 15, α(P)=4.28E-7 6
  3441.5 31/2-      540.4 3 E20.01468α=0.01468, α(K)=0.01165 17, α(L)=0.00234 4, α(M)=0.000540 8, α(N)=0.0001254 18, α(O)=1.677×10-5 24, α(P)=6.43E-7 9
  3501.3 33/2+      678.7 1 E20.00854α=0.00854, α(K)=0.00693 10, α(L)=0.001247 18, α(M)=0.000284 4, α(N)=6.62×10-5 10, α(O)=9.04E-6 13, α(P)=3.87E-7 6
  4071.2 35/2(+)      698.9 3 E20.00799α=0.00799, α(K)=0.00650 10, α(L)=0.001155 17, α(M)=0.000263 4, α(N)=6.13×10-5 9, α(O)=8.38E-6 12, α(P)=3.64E-7 6
  4086.0 35/2-      644.5 3 E20.00962α=0.00962, α(K)=0.00778 11, α(L)=0.001431 21, α(M)=0.000327 5, α(N)=7.61×10-5 11, α(O)=1.034E-5 15, α(P)=4.34E-7 6
  4182.6 37/2+      681.3 1 E20.00847α=0.00847, α(K)=0.00688 10, α(L)=0.001234 18, α(M)=0.000281 4, α(N)=6.56×10-5 10, α(O)=8.95E-6 13, α(P)=3.84E-7 6
  4447.5 (37/2-)      757.4 3 E20.00668α=0.00668, α(K)=0.00547 8, α(L)=0.000941 14, α(M)=0.000214 3, α(N)=4.98×10-5 7, α(O)=6.85E-6 10, α(P)=3.07E-7 5
  4703.9 39/2(+)      632.7 3 E20.01004α=0.01004, α(K)=0.00811 12, α(L)=0.001504 22, α(M)=0.000344 5, α(N)=8.01×10-5 12, α(O)=1.086E-5 16, α(P)=4.52E-7 7
E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
  4867.7 41/2+      685.1 1 E20.00836α=0.00836, α(K)=0.00679 10, α(L)=0.001217 17, α(M)=0.000277 4, α(N)=6.46×10-5 9, α(O)=8.82E-6 13, α(P)=3.80E-7 6
  5119.0 43/2(+)      415.1 3 E20.0291α=0.0291, α(K)=0.0223 4, α(L)=0.00528 8, α(M)=0.001233 18, α(N)=0.000286 4, α(O)=3.72×10-5 6, α(P)=1.198E-6 17
  5142.9 (41/2-)      695.4 3 E20.00808α=0.00808, α(K)=0.00657 10, α(L)=0.001170 17, α(M)=0.000266 4, α(N)=6.21×10-5 9, α(O)=8.49E-6 12, α(P)=3.68E-7 6
  5491.8 45/2+      624.1 3 E20.01037α=0.01037, α(K)=0.00836 12, α(L)=0.001561 22, α(M)=0.000357 5, α(N)=8.32×10-5 12, α(O)=1.126E-5 16, α(P)=4.65E-7 7
  5742.3 (45/2-)      599.4 3 E20.01141α=0.01141, α(K)=0.00916 13, α(L)=0.001744 25, α(M)=0.000400 6, α(N)=9.31×10-5 13, α(O)=1.256E-5 18, α(P)=5.09E-7 8
  6253.7 49/2+      761.9 3 E20.00659α=0.00659, α(K)=0.00540 8, α(L)=0.000927 13, α(M)=0.000210 3, α(N)=4.91×10-5 7, α(O)=6.75E-6 10, α(P)=3.03E-7 5
  6359.5 (49/2-)      617.2 3 E20.01065α=0.01065, α(K)=0.00857 12, α(L)=0.001609 23, α(M)=0.000368 6, α(N)=8.58×10-5 12, α(O)=1.161E-5 17, α(P)=4.77E-7 7
  6986.8 53/2+      733.1 3 E20.00718α=0.00718, α(K)=0.00586 9, α(L)=0.001021 15, α(M)=0.000232 4, α(N)=5.41×10-5 8, α(O)=7.43E-6 11, α(P)=3.28E-7 5

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.07/2- 38.6 s 10 
% ε = 99.5
% α = 0.5
μ=-0.639 8
Δ<r2>(157-168)=1.09 fm2 4 and Δ<r2>(157-159)=0.24 fm2 4 from 1991Sc33 (and 1992Ku21).
E(level): Δ<r2>(157-168)=1.09 fm2 4 and Δ<r2>(157-159)=0.24 fm2 4 from 1991Sc33 (and 1992Ku21). νf7/2, g.s. band.
   205.50(9/2-)   E(level): νh9/2 band.
   494.4011/2-   E(level): νf7/2, g.s. band.
   528.813/2+ 45 ns μ=-0.75 8
E(level): νi13/2 band.
   721.60(13/2-)   E(level): νh9/2 band.
  1019.617/2+   E(level): νi13/2 band.
  1063.8015/2-   E(level): νf7/2, g.s. band.
  1328.80(17/2-)   E(level): νh9/2 band.
  1563.321/2+   E(level): νi13/2 band.
  1679.2019/2-   E(level): νf7/2, g.s. band.
  1998.5(21/2-)   E(level): νh9/2 band.
  2149.925/2+   E(level): νi13/2 band.
  2192.723/2(+)   E(level): γ cascade based on 23/2+.
  2333.623/2-   E(level): νf7/2, g.s. band.
  2526.8(23/2-)   E(level): γ cascade.
  2579.927/2(+)   E(level): γ cascade based on 23/2+.
  2742.3(25/2-)   E(level): νh9/2 band.
  2822.629/2+   E(level): νi13/2 band.
  2901.127/2-   E(level): νf7/2, g.s. band.
  2968.5(27/2-)   E(level): γ cascade.
  3372.331/2(+)   E(level): γ cascade based on 23/2+.
  3390.7(29/2-)   E(level): νh9/2 band.
  3441.531/2-   E(level): νf7/2, g.s. band.
  3501.333/2+   E(level): νi13/2 band.
  3661.9   E(level): γ cascade.
E(level)Jπ(level)T1/2(level)Comments
  3690.1(33/2-)   E(level): γ cascade based on (33/2-).
  3983.1(33/2-)   E(level): νh9/2 band.
  4071.235/2(+)   E(level): γ cascade based on 23/2+.
  4086.035/2-   E(level): νf7/2, g.s. band.
  4182.637/2+   E(level): νi13/2 band.
  4447.5(37/2-)   E(level): γ cascade based on (33/2-).
  4703.939/2(+)   E(level): γ cascade based on 23/2+.
  4799.6(39/2-)   E(level): νf7/2, g.s. band.
  4867.741/2+   E(level): νi13/2 band.
  5119.043/2(+)   E(level): γ cascade based on 23/2+.
  5142.9(41/2-)   E(level): γ cascade based on (33/2-).
  5491.845/2+   E(level): νi13/2 band.
  5742.3(45/2-)   E(level): γ cascade based on (33/2-).
  6253.749/2+   E(level): νi13/2 band.
  6359.5(49/2-)   E(level): γ cascade based on (33/2-).
  6986.853/2+   E(level): νi13/2 band.
  7185.1(53/2-)   E(level): γ cascade based on (33/2-).
  7907.5(57/2-)   E(level): γ cascade based on (33/2-).

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Additional Gamma Comments:

E(level)E(gamma)Comments
   528.8    34.4E(γ): from level-energy difference.

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