ADOPTED LEVELS, GAMMAS for 86Kr

Authors: Alexandru Negret, Balraj Singh |  Citation: Nucl. Data Sheets 124, 1 (2015) |  Cutoff date: 30-Nov-2014 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-518.66 keV 20S(n)= 9856.7 keV 20S(p)= 11979 keV 3Q(α)= -8096.7 keV 14
Reference: 2012WA38

References:
  A  86Br β- decay (55.1 S)  B  86Rb ε decay (18.642 d)
  C  87Br β-n decay (55.65 S)  D  82Se(7Li,p2nγ)
  E  84Kr(t,p)  F  86Kr(γ,γ’)
  G  86Kr(n,n’γ)  H  86Kr(p,p’)
  I  86Kr(d,d’)  J  Coulomb Excitation
  K  87Rb(d,3He)  L  87Rb(t,α)
  M  208Pb(18O,Fγ) 

General Comments:

86Kr isotope identified in mass spectroscopic studies by Aston, Nature 105, 8 (1920); also 1921As01.

Other reaction:

86Kr(n,n) E|<1 MeV: 1989Jo01 analyzed σ(E) to deduce optical model parameter.

Mean square charge radius and isotopic shift: 2000Ga58, 1995Ke04, 1992Sc19, 1990Ca26.

Q-value: S(2n)=16968.96 1, S(2p)=21895.9 20, Q(2β-)=1257.5 11 (2012Wa38)










E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
      0ABCDEFGHIJKLM 0+ STABLE      
   1564.61 7 A  DEFGHIJKLM 2+ 0.286 ps +28-24     1564.67 9 
   100
E2
      0
0+
   2250.01 10 A  DE GHIJKLM 4+ 3.1 ns 6      685.35 7 
   100
E2
   1564.61
2+
   2349.47 7 A   EFGHI KL  2+       784.96 8 
   2349.37 12 
    41 4 
   100


   1564.61
      0
2+
0+
   2726.4 4     E GH  KL  0+       376.8
   1162.0
    70 6 
   100


   2349.47
   1564.61
2+
2+
   2850.72 9 A      HI KL  (2,3)+       501.25 7 
   1286.08 9 
    22.2 20 
   100.0 19 


   2349.47
   1564.61
2+
2+
   2916.83 11 A     G       (3-)       666.77 7 
   1352.1
   100
    25 4 


   2250.01
   1564.61
4+
2+
   2926.16 8 A     GH  KL  (2)+       576.72 8 
   1361.63 10 
   2925.93 20 
     4.8 4 
   100
    21.3 25 



   2349.47
   1564.61
      0
2+
2+
0+
   3009.43 11 A     GH   L  (1,2)+       660.02 10 
   3009.0 3 
    79 6 
   100


   2349.47
      0
2+
0+
   3098.85 9 A   E GHI  L  3-      1534.24 8 
   100

   1564.61
2+
   3328.1 5       GH   L  (3+,4+)      1763.5
   100

   1564.61
2+
   3541.3 4     E GH   L  0+      1191.6
   1976.9
   100
    50 8 


   2349.47
   1564.61
2+
2+
   3583.4 5       GH      (0+:4+)      2018.8
   100

   1564.61
2+
   3782.8 4      F H   L  (LE 3)(+)      3782.7 4 
   100

      0
0+
   3816.32 19    D  GH    M (5+)      1566.3 2 
   100

   2250.01
4+
   3832 10     E  H      0+        
   3935.1 3    D  GH    M (5)      1685.1 3 
   100

   2250.01
4+
   3959 10     E      L  (3-,4+)        
   4038.6 3      F H   L  (2,3)-      4038.5 3 
   100
[M2,E3]
      0
0+
   4064.12 19    D  G     M (6+)       247.8 3 
   1814.1 2 
    38
   100
D+Q
E2
   3816.32
   2250.01
(5+)
4+
   4072 10     E  H      (5-)        
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
   4111 10     E         2+        
   4175 20        H   L  (4+)        
   4194 10     E      L  2+        
   4277 10        H   L  (7+)        
   4315.82 8 A   E  H      (2-)      1217.02 9 
   1306.57 25 
   1389.73 9 
   1398.48 22 
   1465.09 10 
   1966.27 11 
   2751.06 15 
   4316.5 6 ?
    34.6 7 
     2.01 23 
    53.2 10 
     1.8 3 
    39.0 10 
    34.4 10 
   100 3 
     0.6 3 







[M2]
   3098.85
   3009.43
   2926.16
   2916.83
   2850.72
   2349.47
   1564.61
      0
3-
(1,2)+
(2)+
(3-)
(2,3)+
2+
2+
0+
   4399 20        H      (4+)        
   4400.82 10      F        1      4400.7 1 
   100
D
      0
0+
   4430.50 25    D        M (6-)       495.3 4 
    614.2 3 
    42
   100


   3935.1
   3816.32
(5)
(5+)
   4559 20        H      (4+)        
   4666 10     E  H      (3-,4+)        
   4693.3 3    D        M (7)       262.8 3 
    629.3 4 
    758.2 4 
   100
    76
   ≈32



   4430.50
   4064.12
   3935.1
(6-)
(6+)
(5)
   4706 9     E  H             
   4755.77 25    D        M (7+)       325.3 4 
    691.6 2 
    20
   100


   4430.50
   4064.12
(6-)
(6+)
   4819 12     E  H      (2+)        
   4867.5 6      F        (1-)      4867.4 6 
   100
(E1)
      0
0+
   4928 10        H      (4+)        
   4932.55 20      F             4932.4 2 
   100

      0
0+
   4948 10     E         (2+)        
   4991 10     E                
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
   5127 20        H             
   5203 20        H             
   5313.98 20 A      H           2387.79 18 
   3064.38 19 ?
   100 11 
    34 4 


   2926.16
   2250.01
(2)+
4+
   5406.10 23 A      H      (1,2)      2480.4 5 
   5405.80 25 
     7.1 11 
   100 6 


   2926.16
      0
(2)+
0+
   5438 10     E                
   5517.42 18 A   EF        1-      2418.24 23 
   5517.58 25 
    22 9 
   100 5 

E1
   3098.85
      0
3-
0+
   5571.2 12      F H      1      5571.0 12 
   100
D
      0
0+
   5637 10 ?    E                
   5660.3 3    D        M (8+)       904.4 4 
    967.0 4 
   1596.2 4 
    63
   100
    88



   4755.77
   4693.3
   4064.12
(7+)
(7)
(6+)
   5669.1 5    D        M      1238.6 4 
   100

   4430.50
(6-)
   5707 10     E                
   5788.4 3      F        (1)      5788.2 3 
   100
(D)
      0
0+
   5799 9     E  H             
   5814.5 4    D        M (9+)       154.2 3 
   1058.7 3 
   100
    63


   5660.3
   4755.77
(8+)
(7+)
   5862 9     E  H             
   5924.3 4      F H      1-      5924.1 4 
   100
E1
      0
0+
   5981 10     E                
   6085.1 5    D        M      1391.8 4 
   100

   4693.3
(7)
   6089.1 5 A             (1,2)      6088.9 5 
   100

      0
0+
   6118 10     E                
   6160.34 20 A    F        1-      6160.1 2 
   100
E1
      0
0+
   6211.8 3 A   EF        1      6211.6 3 
   100
D
      0
0+
   6248.0 4    D        M (10)       433.5 2 
   100

   5814.5
(9+)
   6318 10     E                
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
   6328.8 3      F        1-      6328.6 3 
   100
E1
      0
0+
   6397 10     E                
   6432.16 20      F        1-      6431.9 2 
   100
E1
      0
0+
   6463.2 3      F        1-      6462.9 3 
   100
E1
      0
0+
   6531.97 20      F        1-      6531.7 2 
   100
E1
      0
0+
   6678.9 5      F        1      6678.6 5 
   100
D
      0
0+
   6720.5 6 A             (1,2)      6720.2 6 
   100

      0
0+
   6768.30 22 A             (1,2)      3758.8 3 
   6768.0 3 
   100 12 
    14.8 16 


   3009.43
      0
(1,2)+
0+
   6818.6 4      F        1-      6818.3 4 
   100
E1
      0
0+
   7028.4 4      F        1-      7028.1 4 
   100
E1
      0
0+
   7128.1 5    D          (10)       880.0 4 
   1313.7 4 
  ≈100
   ≈70


   6248.0
   5814.5
(10)
(9+)
   7234.6 4      F        (1)      7234.3 4 
   100
(D)
      0
0+
   7304.5 5      F        1-      7304.2 5 
   100
E1
      0
0+
   7314.6 3      F        1-      7314.3 3 
   100
E1
      0
0+
   7459.5 5    D          (11)       331.4 3 
   1211.5 4 
   100
   ≈25


   7128.1
   6248.0
(10)
(10)
   7570.0 4      F        1-      7569.6 4 
   100
E1
      0
0+
   7675.7 4      F        1      7675.3 4 
   100
D
      0
0+
   7745.8 4      F        1      7745.4 4 
   100
D
      0
0+
   7797.9 4      F        1-      7797.5 4 
   100
E1
      0
0+
   7846.6 5      F        1-      7846.2 5 
   100
E1
      0
0+
   7874.2 7      F        1-      7873.8 7 
   100
E1
      0
0+
   7876.4 6    D          (12)       416.9 3 
   100

   7459.5
(11)
   7958.4 4      F        1-      7958.0 4 
   100
E1
      0
0+
   8428.6 4      F        1-      8428.2 4 
   100
E1
      0
0+
   8621.7 8      F        1-      8621.2 8 
   100
E1
      0
0+
   8651.3 3      F        1-      8650.8 3 
   100
E1
      0
0+
   8802.5 6      F        1      8802.0 6 
   100
D
      0
0+
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
   8841.6 8      F        1-      8841.1 8 
   100
E1
      0
0+
   9014.4 6      F        1-      9013.9 6 
   100
E1
      0
0+
   9068.1 10      F        1      9067.6 10 
   100
D
      0
0+
   9086.1 8      F        1-      9085.6 8 
   100
E1
      0
0+
   9452.9 5      F        1      9452.3 5 
   100
D
      0
0+
   9478.0 18      F             9477.4 18 
   100

      0
0+
  10116.2 8      F        1     10115.6 8 
   100
D
      0
0+

E(level): From least-squares fit to Eγ values for levels populated in γ-ray studies. Others are weighted averages of values observed in particle reaction studies

Jπ(level): For high-spin (J>6), the assignments are based on γ(θ) data in (7Li,p2nγ), unless otherwise stated.

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Additional Gamma Data:











E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityAdditional Data
   1564.61 2+ 0.286 ps +28-24     1564.67 9 E2B(E2)(W.u.)=9.4 8
   2250.01 4+ 3.1 ns 6      685.35 7 E2B(E2)(W.u.)=0.054 11

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
      00+ STABLE RMS charge radius <r2>1/2=4.1835 fm 21 (2013An02).
   2250.014+ 3.1 ns 6  μ=+4.12 56 (2014Ku10)
Configuration=πf5/2-1~#πp3/2-1.
   3098.853-   B(E3)=0.036 12 (2002Ki06 evaluation based on β3 from data in 1974Ar29 and 1978Ma11).
   3935.1(5)   XREF: H(3938).
   3959(3-,4+)   XREF: L(3930).
   4064.12(6+)   Configuration=(πf5/2)-3~#(πp3/2)-1~# (πp1/2)2(0+)#(νg9/2)-1~#(νd5/2)1.
   4072(5-)   XREF: H(4090).
   4277(7+)   E(level): Weighted average from 86Br β- and (7Li,p2nγ).
Jπ(level): From σ(θ) in (p,p’) and assumption of ν(d5/2g9/2-1) excitation.
   4315.82(2-)   XREF: E(4298)H(4308).
   4399(4+)   E(level): Weighted average from 86Br β- and (7Li,p2nγ).
Jπ(level): From σ(θ) in (p,p’) and assumption of ν(d5/2g9/2-1) excitation.
   4400.821   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   4559(4+)   E(level): Weighted average from 86Br β- and (7Li,p2nγ).
Jπ(level): From σ(θ) in (p,p’) and assumption of ν(d5/2g9/2-1) excitation.
   4867.5(1-)   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   5517.421-   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   5571.21   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   5788.4(1)   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   5924.31-   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   6160.341-   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   6211.81   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   6328.81-   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   6432.161-   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   6463.21-   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   6531.971-   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   6678.91   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   6818.61-   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
E(level)Jπ(level)T1/2(level)Comments
   7028.41-   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   7234.6(1)   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   7304.51-   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   7314.61-   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   7570.01-   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   7675.71   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   7745.81   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   7797.91-   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   7846.61-   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   7874.21-   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   7958.41-   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   8428.61-   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   8621.71-   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   8651.31-   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   8802.51   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   8841.61-   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   9014.41-   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   9068.11   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   9086.11-   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
   9452.91   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.
  10116.21   Jπ(level): From (γγ’) data, transition to 0+ g.s. is E1 or dipole.

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Additional Gamma Comments:

E(level)E(gamma)Comments
   1564.61   1564.67E(γ): Weighted average from 86Br β- and (7Li,p2nγ)
   2349.47    784.96I(γ): unweighted average from 86Br β- and (n,n’γ)
   4064.12    247.8E(γ): γ not reported in (n,n’γ)
   5517.42   2418.24E(γ): γ from 86Br decay only

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