ADOPTED LEVELS, GAMMAS for 140Sm

Author: N. Nica |  Citation: Nucl. Data Sheets 154, 1 (2018) |  Cutoff date: 20-Nov-2018 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-8470 keV 50S(n)= 11147 keV 17S(p)= 5244 keV 18Q(α)= 1318 keV 17
Reference: 2017WA10

References:
  A  140Eu ε decay  B  141Gd β+p decay
  C  Coulomb Excitation  D  (HI,xnγ)








E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0.0ABCD 0+ 14.82 m 12 
% ε = 100
     
   530.68 10 ABCD 2+ 6.10 ps 32     530.7 1 
  100
E2
     0.0
0+
   990.37 12 A C  2+ 7.7 ps 12     459.9 1 
  100
E2(+M1)
   530.68
2+
  1245.83 13 A CD 4+ 1.00 ps 7     715.0 1 
  100
E2
   530.68
2+
  1420.31 20 A    (1,2)     1420.3 2 
  100

     0.0
0+
  1598.79 12 A    0+      352.4 2 
   608.6 1 
  1068.0 1 
    3.6 18 
   17.3 18 
  100 10 


E2
  1245.83
   990.37
   530.68
4+
2+
2+
  1628.39 22 A    0,1,2     1097.7 2 
  100

   530.68
2+
  1932.89 22 A    0,1,2     1402.2 2 
  100

   530.68
2+
  2014.7 4    D 5      768.8 3 
  100
D
  1245.83
4+
  2081.91 24    D 6+      836.1 2 
  100
Q
  1245.83
4+
  2283.89 13 A    2+      685.1 2 
  1293.6 1 
  1752.8 2 
  2283.9 3 
   47 16 
   63 11 
  100 16 
   26 11 




  1598.79
   990.37
   530.68
     0.0
0+
2+
2+
0+
  2289.64 20 A    (1,2)     1299.4 2 
  1758.7 4 
  2289.1 5 
   75 25 
  100 50 
   50 25 



   990.37
   530.68
     0.0
2+
2+
0+
  2326.4 4    D 7      311.7 1 
  100
Q
  2014.7
5
  2482.06 17 A    (1,2)+      882.7 3 
  1491.3 2 
  1952.0 2 
   10 5 
  100 14 
   67 10 



  1598.79
   990.37
   530.68
0+
2+
2+
  2595.6 4 A    0,1,2     2064.9 3 
  100

   530.68
2+
  2959.3 6    D (6,7,8)      632.9 4 
  100
(D)
  2326.4
7
  2969.5 3    D 8+      887.6 1 
  100
Q
  2081.91
6+
  3127.7 4    D 9      801.3 2 
  100
Q
  2326.4
7
  3172.1 4    D 10+ 19.4 ns 7      44S
   202.6 2 
   25
  100
[D]
E2
  3127.7
  2969.5
9
8+
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  3194.5 3    D 8(+)      224.9 2 
  1112.8 3 
   82 24 
  100 16 
D+Q
Q
  2969.5
  2081.91
8+
6+
  3210.9 3    D 10+ 5.20 ns 14      16.4S
    39S
   241.4 1 
 
   36
  100
[E2]
(M1)
E2
  3194.5
  3172.1
  2969.5
8(+)
10+
8+
  3652.8 3    D 12+ 15.2 ns 21     441.9 1 
  100
E2
  3210.9
10+
  3790.8 4    D 12+ 7.6 ns 21     618.7 1 
 
E2
  3172.1
10+
  3892.5 5    D 11      681.7 5 
  100
D
  3210.9
10+
  4024.0 6    D 11      896.3 4 
  100
Q
  3127.7
9
  4044.1 5    D 11      916.4 3 
  100
Q
  3127.7
9
  4404.1 4    D 14+ 1.2 ps 5     751.3 2 
  100
E2
  3652.8
12+
  4445.8 5    D (13)      792.6 4 
  100
(D)
  3652.8
12+
  4488.1 6    D      835.3 5 
  100

  3652.8
12+
  4622.4 4    D 15      218.3 2 
  100
D
  4404.1
14+
  4683.0 5    D 11,12,13      790.5 4 
  100

  3892.5
11
  4854.3 5    D 13      171.3 3 
  1063.4 3 
   36 9 
  100 9 
D
D
  4683.0
  3790.8
11,12,13
12+
  4914.3 5    D 14(+)     1123.5 3 
  100
Q
  3790.8
12+
  4946.7 5    D 16      324.3 2 
  100
D
  4622.4
15
  4990.2 4    D 13     1337.4 2 
  100
D
  3652.8
12+
  5087.8 5    D (14)      233.5 3 
  100
D+Q
  4854.3
13
  5194.2 4    D 14      204.2 3 
   790.2 4 
  100 27 
   18 5 


  4990.2
  4404.1
13
14+
  5254.4 4    D 15      808.3 3 
   850.5 3 
   24 7 
  100 9 
(Q)
D
  4445.8
  4404.1
(13)
14+
  5328.6 6    D 17      381.9 3 
  100
D
  4946.7
16
  5373.3 6    D (15)      285.5 3 
  100
D+Q
  5087.8
(14)
  5394.1 8    D      906.0 5 
  100
(Q)
  4488.1

  5397.9 5    D 16      993.8 3 
  100
Q
  4404.1
14+
  5479.2 4    D 15     1075.0 2 
  100
D
  4404.1
14+
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  5489.6 5    D 16      575.3 2 
  100
Q
  4914.3
14(+)
  5499.2 4    D 15      305.0 3 
  1095.1 2 
   78 17 
  100 10 
D
D
  5194.2
  4404.1
14
14+
  5572.0 5    D 15      377.9 3 
  100
D
  5194.2
14
  5706.2 4    D 16      134.3 3 
   206.9 3 
   226.9 3 
   62 7 
   25 7 
  100 20 

D
D
  5572.0
  5499.2
  5479.2
15
15
15
  5794.1 8    D (18)      465.5 5 
  100
(D)
  5328.6
17
  5810.8 5    D 16     1322.8 7 
  1406.6 4 
  100 13 
   23 10 
Q
Q
  4488.1
  4404.1

14+
  5892.8 7    D      519.5 3 
  100

  5373.3
(15)
  5998.2 8    D      604.1 2 
  100

  5394.1

  6023.6 5    D 17      317.4 2 
  100
D
  5706.2
16
  6038.8 6    D 17      640.9 3 
  100
D
  5397.9
16
  6166.3 6    D 16     1252.0 4 
  100
Q
  4914.3
14(+)
  6272.1 6    D 18      782.5 2 
  100
Q
  5489.6
16
  6397.1 6    D 18      373.5 4 
  100
D
  6023.6
17
  6420.5 7    D      254.1 3 
  100

  6166.3
16
  6436.0 7    D      269.7 3 
  100

  6166.3
16
  6549.4 6    D 18     1151.5 3 
  100
Q
  5397.9
16
  6725.5 7    D      289.6 3 
   305.0 3 
   88 24 
  100 24 


  6436.0
  6420.5


  6755.2 7    D 19      358.1 2 
  100
D
  6397.1
18
  6778.5 9    D      780.3 4 
  100
(D)
  5998.2

  6864.3 7    D 19      825.5 3 
  100
Q
  6038.8
17
  7091.6 8    D      366.1 3 
  100
(Q)
  6725.5

  7269.2 7    D      514.0 3 
  100

  6755.2
19
  7320.5 7    D (20)      771.1 3 
  100
(Q)
  6549.4
18
  7545.8 8    D      454.2 3 
  100
(D)
  7091.6

  7751.6 8    D      482.4 3 
  100

  7269.2

E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  7772.5 7    D (20)     1223.1 4 
  100
(Q)
  6549.4
18
  8041.4 9    D      495.6 4 
  100

  7545.8

  8100.8 9    D      349.2 3 
  100

  7751.6

M(γ): From γ(θ) in (HI,xnγ) (1990Lu04), except where noted

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Additional Gamma Data:













E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
   530.68 2+ 6.10 ps 32     530.7 1 E20.01096B(E2)(W.u.)=50.5 27, α=0.01096, α(K)=0.00904 13, α(L)=0.001510 22, α(M)=0.000330 5, α(N)=7.40E-5 11, α(O)=1.064E-5 15, α(P)=5.23E-7 8
   990.37 2+ 7.7 ps 12     459.9 1 E2(+M1)0.021α=0.021 6, α(K)=0.0179 48, α(L)=0.0027 4, α(M)=0.00059 8, α(N)=0.000132 19, α(O)=1.9×10-5 4, α(P)=1.09E-6 34
  1245.83 4+ 1.00 ps 7     715.0 1 E20.00524B(E2)(W.u.)=69.8 49, α=0.00524, α(K)=0.00439 7, α(L)=0.000667 10, α(M)=0.0001443 21, α(N)=3.25E-5 5, α(O)=4.75E-6 7, α(P)=2.59E-7 4
  1598.79 0+     1068.0 1 E20.00217α=0.00217, α(K)=0.00184 3, α(L)=0.000257 4, α(M)=5.50×10-5 8, α(N)=1.243E-5 18, α(O)=1.85E-6 3, α(P)=1.095E-7 16
  3172.1 10+ 19.4 ns 7     202.6 2 E20.200B(E2)(W.u.)=1.36 7, α=0.200, α(K)=0.1442 21, α(L)=0.0433 7, α(M)=0.00981 15, α(N)=0.00217 4, α(O)=0.000288 5, α(P)=7.17E-6 11
  3210.9 10+ 5.20 ns 14      16.4[E2]7.58×103α=7.58×103, α(L)=5.90E3 9, α(M)=1353 19, α(N)=294 5, α(O)=35.5 5, α(P)=0.00981 14
10+ 5.20 ns 14      39(M1)4.04B(M1)(W.u.)≤0.0089 17, α=4.04, α(L)=3.18 5, α(M)=0.682 10, α(N)=0.1546 22, α(O)=0.0231 4, α(P)=0.001419 20
10+ 5.20 ns 14     241.4 1 E20.1122B(E2)(W.u.)≤1.05 13, α=0.1122, α(K)=0.0842 12, α(L)=0.0218 3, α(M)=0.00490 7, α(N)=0.001087 16, α(O)=0.0001467 21, α(P)=4.34E-6 7
  3652.8 12+ 15.2 ns 21     441.9 1 E20.0180B(E2)(W.u.)=0.050 +8-6, α=0.0180, α(K)=0.01459 21, α(L)=0.00263 4, α(M)=0.000578 8, α(N)=0.0001293 19, α(O)=1.84E-5 3, α(P)=8.29E-7 12
  3790.8 12+ 7.6 ns 21     618.7 1 E20.00742B(E2)(W.u.)=0.019 +7-4, α=0.00742, α(K)=0.00618 9, α(L)=0.000979 14, α(M)=0.000213 3, α(N)=4.78E-5 7, α(O)=6.94E-6 10, α(P)=3.61E-7 5
  4404.1 14+ 1.2 ps 5     751.3 2 E20.00467B(E2)(W.u.)=45 +33-14, α=0.00467, α(K)=0.00392 6, α(L)=0.000588 9, α(M)=0.0001270 18, α(N)=2.86E-5 4, α(O)=4.20E-6 6, α(P)=2.31E-7 4

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.00+ 14.82 m 12 
% ε = 100
RMS charge radius <r2>1/2=4.9565 fm 34 (2013An02).
   530.682+ 6.10 ps 32  Jπ(level): 0+,1+,2+ from log ft|<5.5 via 1+ parent; Q γ to 0+.
   990.372+ 7.7 ps 12  Jπ(level): 0,1,2 from log ft|<6.3 via 1+ parent; 2+ from angular correlation measurement in Coulomb excitation dataset (2015Kl01).
  1245.834+ 1.00 ps 7  Jπ(level): Q γ cascade to 2+; systematics of yrast levels in even-even nuclei.
  1598.790+   Jπ(level): 0,1,2 from log ft|<6.3 via 1+ parent; 0+ from angular correlation measurement in 140Eu ε decay dataset (2015Kl01).
  1628.390,1,2   Jπ(level): 0,1,2 from log ft|<6.3 via 1+ parent.
  1932.890,1,2   Jπ(level): 0,1,2 from log ft|<6.3 via 1+ parent.
  2014.75   Jπ(level): π=- in (HI,xnγ) but not strong argument given. 1990Lu04 consider that typical stretched d A2,A4 values are characteristic for E1, which however do not exclude M1.
  2081.916+   Jπ(level): Q γ cascade to 2+; systematics of yrast levels in even-even nuclei.
  2283.892+   Jπ(level): 0+,1+,2+ from log ft|<5.5 via 1+ parent; Q γ to 0+.
  2326.47   Jπ(level): π=- in (HI,xnγ) but not strong argument given. 1990Lu04 consider that typical stretched d A2,A4 values are characteristic for E1, which however do not exclude M1.
  2595.60,1,2   Jπ(level): 0,1,2 from log ft|<6.3 via 1+ parent.
  2969.58+   Jπ(level): Q γ cascade to 2+; systematics of yrast levels in even-even nuclei.
  3127.79   Jπ(level): π=- in (HI,xnγ) but not strong argument given. 1990Lu04 consider that typical stretched d A2,A4 values are characteristic for E1, which however do not exclude M1.
  3172.110+ 19.4 ns 7  μ=-1.8 2 (2014StZZ), Q=1.7 5 (2016St14)
μ and analysis of the collective band suggests two neutron configuration [ν(h11/2),ν(h11/2)].
  4024.011   Jπ(level): π=- in (HI,xnγ) but not strong argument given. 1990Lu04 consider that typical stretched d A2,A4 values are characteristic for E1, which however do not exclude M1.
  4044.111   Jπ(level): π=- in (HI,xnγ) but not strong argument given. 1990Lu04 consider that typical stretched d A2,A4 values are characteristic for E1, which however do not exclude M1.
  4990.213   Jπ(level): π=- in (HI,xnγ) but not strong argument given. 1990Lu04 consider that typical stretched d A2,A4 values are characteristic for E1, which however do not exclude M1.
  5194.214   Jπ(level): π=- in (HI,xnγ) but not strong argument given. 1990Lu04 consider that typical stretched d A2,A4 values are characteristic for E1, which however do not exclude M1.
  5479.215   Jπ(level): π=- in (HI,xnγ) but not strong argument given. 1990Lu04 consider that typical stretched d A2,A4 values are characteristic for E1, which however do not exclude M1.
  5499.215   Jπ(level): π=- in (HI,xnγ) but not strong argument given. 1990Lu04 consider that typical stretched d A2,A4 values are characteristic for E1, which however do not exclude M1.
  5572.015   Jπ(level): π=- in (HI,xnγ) but not strong argument given. 1990Lu04 consider that typical stretched d A2,A4 values are characteristic for E1, which however do not exclude M1.

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Additional Gamma Comments:

E(level)E(gamma)Comments
   990.37   459.9E(γ): From 140Eu ε
I(γ): From 140Eu ε
M(γ): based on angular correlation measurement for 459γ-531γ cascade in Coulomb excitation dataset (2015Kl01)
  1420.31  1420.3E(γ): From 140Eu ε
I(γ): From 140Eu ε
  1598.79   352.4E(γ): From 140Eu ε
I(γ): From 140Eu ε
   608.6E(γ): From 140Eu ε
I(γ): From 140Eu ε
  1068.0E(γ): From 140Eu ε
I(γ): From 140Eu ε
M(γ): based on angular correlation measurement for 1068γ-531γ cascade in ε decay dataset (2015Kl01)
  1628.39  1097.7E(γ): From 140Eu ε
I(γ): From 140Eu ε
  1932.89  1402.2E(γ): From 140Eu ε
I(γ): From 140Eu ε
  2283.89   685.1E(γ): From 140Eu ε
I(γ): From 140Eu ε
  1293.6E(γ): From 140Eu ε
I(γ): From 140Eu ε
  1752.8E(γ): From 140Eu ε
I(γ): From 140Eu ε
  2283.9E(γ): From 140Eu ε
I(γ): From 140Eu ε
  2289.64  1299.4E(γ): From 140Eu ε
I(γ): From 140Eu ε
  1758.7E(γ): From 140Eu ε
I(γ): From 140Eu ε
  2289.1E(γ): From 140Eu ε
I(γ): From 140Eu ε
  2482.06   882.7E(γ): From 140Eu ε
I(γ): From 140Eu ε
  1491.3E(γ): From 140Eu ε
I(γ): From 140Eu ε
  1952.0E(γ): differs by 3σ from ΔElevels. From 140Eu ε
I(γ): From 140Eu ε
  2595.6  2064.9E(γ): From 140Eu ε
I(γ): From 140Eu ε
  3172.1    44M(γ): d from comparison to RUL and ΔJπ=1
   202.6M(γ): Q from γ(θ) in (HI,xnγ); |= M2 from comparison to RUL
  3210.9    16.4M(γ): from level scheme, 10+ to 8(+)
    39M(γ): d from comparison to RUL; Δπ=no from level scheme
   241.4M(γ): Q from γ(θ) in (HI,xnγ); |= M2 from comparison to RUL
  3652.8   441.9M(γ): Q from γ(θ) in (HI,xnγ); |= M2 from comparison to RUL
  3790.8   618.7M(γ): Q from γ(θ) in (HI,xnγ); |= M2 from comparison to RUL
E(level)E(gamma)Comments
  4404.1   751.3M(γ): Q from γ(θ) in (HI,xnγ); |= M2 from comparison to RUL

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