ADOPTED LEVELS, GAMMAS for 82Se

Authors: J. K. Tuli, E. Browne |  Citation: Nucl. Data Sheets 157, 260 (2019) |  Cutoff date: 1-Mar-2019 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-95.2 keV 11S(n)= 9276.21 keV 97S(p)= 12349.6 keV 27Q(α)= -8156.8 keV 36
Reference: 2017WA10

References:
  A  82As β- decay (13.6 S)  B  82As β- decay (19.1 S)
  C  80Se(t,p)  D  82Se(p,p’),(pol p,p’)
  E  82Se(p,p’γ)  F  Coulomb Excitation
  G  82Se(d,d’)  H  82Se(n,n’γ)
  I  82Se IT decay (6.6 NS)  J  (HI,xnγ)

General Comments:

Reference 2018Az05 compiled in XUNDL by B. Singh (McMaster), June 17, 2018.

Other reactions:

82Se(pol d,d): 19887Nu03 E=12 MeV; measured dσ/d|W and vector-analyzing power

Se(n,n),(n,n’): 1976La12, E=6 MeV to 10 MeV. Natural and enriched targets. Measured σ(θ) for elastic and inelastic scattering. No individual levels were observed for inelastic scattering. 2000Za09 (1999Za09,1999Za07 same authors): Calculated s and p wave n-strength functions, s-wave scattering length 1976La12,1981Br23: Coupled-channels calculations 1990Go13: Coupled-channel analysis of σ(θ) for (n,n) and (n,n’) with excitation of the 2+ state at E=1.5, 2.0, 2.5, 3.0, 5.0, 6.0 MeV. Others: 1984Ko09 (E=1 MeV), 1980Ko17 (slow n’s).

Theoretical calculations: 1982Ah06 (transition strengths); 1988Pe04 (Boson expansion theory).

Some (beyond 1994) Calculations for 0ν, 2ν 2β- decay T1/2, Matrix elements, theory, study of various models: 2001St24, 2001St13, 2001Si33, 2001Ka15, 2001Fa10, 2000Ve05, 2000Su06, 2000Ra13, 2000Pa47, 2000Pa25, 2000Ki24, 2000Fa14, 2000Cl02, 2000Bo05, 2000Ba68, 2000Ba54, 1999Si18, 1999Ca62, 1999Ba38, 1998Ba05, 1998Su22, 1998Su19, 1998Sc11, 1998Ru08, 1998Kl25, 1998Kl18, 1998Kl10, 1998Fa19, 1998Fa17, 1998Be49, 1998Ba76, 1998Ba55, 1998Au04, 1997To05, 1997Ra09, 1997Kr01, 1997Ej01, 1997Ba19, 1996Si29, 1996Sc09, 1996Ru21, 1996Ru04, 1996Pa02, 1996Mo23, 1996Hi06, 1996Hi04, 1996Ej02, 1996Ca35, 1996Ca35, 1996Au07, 1995Ru18, 1995Ba17

See 1981MuZQ for neutron resonances.

Levels: Q value for 2β- decay=2997.9 keV 5 (2017Wa10)










E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0ABCDEFGHIJ 0+ 9.6×10+19 y 10 
% 2β- = 100
     
   654.71 16 ABCDEFGHIJ 2+ 12.8 ps 7     654.7 5 
  100
[E2]
     0
0+
  1410.22 17  BCDEF H   0+ 30 ps    755.6 1 
  100
[E2]
   654.71
2+
  1731.51 10 AB DEFGH J 2+ 0.94 ps 11    1076.4 4 
  1731.5 1 
   26 5 
  100 5 
[E2]
[E2]
   654.71
     0
2+
0+
  1735.10 24 ABCDEFGHIJ 4+ 0.96 ps 15    1079.8 5 
  100
[E2]
   654.71
2+
  2550.28 16 A CDEF H J (4+) 1.7 ps 3     815.1 2 
   818.6 2 
  1895.5 1 
   52 13 
   91 13 
  100 9 

[E2]
[E2]
  1735.10
  1731.51
   654.71
4+
2+
2+
  2624.1 4  B  E  H   (0+) 0.04 ps 1    1969.4 3 
  100
[E2]
   654.71
2+
  2893.66 18 A CD   H J 5- > 131.7 ps    343.3 1 
  1158.3 8 
  100 17 
   10 3 


  2550.28
  1735.10
(4+)
4+
  3009.14 19  BCDE  H   3- 0.020 ps 5    2354.4 1 
  100
[E1]
   654.71
2+
  3103.3 4   CD   H   (4+)     1368.2 2 
  100

  1735.10
4+
  3144.8 5         IJ 6+ 0.39 ps +13-9    1409.7 4 
 
[E2]
  1735.10
4+
  3238.78 21    D   H   (4+) 0.30 ps +12-8    1507.3 3 
  2584.0 2 
   75 19 
  100 10 
[E2]
[E2]
  1731.51
   654.71
2+
2+
  3378.44 24    D   H   (3-) 0.12 ps 4    1646.9 3 
  2723.7 3 
   96 20 
  100 10 
[E1]
[E1]
  1731.51
   654.71
2+
2+
  3445.9 4   C    H   0+     1714.4 3 
  100

  1731.51
2+
  3454.15 20 A      H   (5-)      560.5 1 
   903.7 3 
  100 20 
   20 4 


  2893.66
  2550.28
5-
(4+)
  3517.8 5         IJ 8+ 6.6 ns 4 
% IT = 100
   373.0 2 
  100
[E2]
  3144.8
6+
  3591.67 20   CD   H   2+ 0.28 ps +12-8    1859.9 2 
  2182.0 3 
  3591 1 
  100 17 
   16.7 17 
   12 5 
[E2]
[E2]
[E2]
  1731.51
  1410.22
     0
2+
0+
0+
  3631.26 21    D   H   (0+)     1899.7 3 
  2976.5 2 
   67 14 
  100 20 


  1731.51
   654.71
2+
2+
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  3664.0 4   C    H   2+     1113.7 3 
  3009 1 
  100 17 
   33 9 


  2550.28
   654.71
(4+)
2+
  3667.5 3  B         (1,2+)     3667.4 3 
  100

     0
0+
  3688.9 6    D   H   (4+)     3034.1 5 
  100

   654.71
2+
  3757.0 5   CD   H   2+     2346 1 
  3102.4 5 
   32 11 
  100 11 


  1410.22
   654.71
0+
2+
  3794.9 5          J (7-)      901.2 4 
  100

  2893.66
5-
  3798 4 ?   D       (4+)        
  3831.0 6   C    H   0+     3176.2 5 
  100

   654.71
2+
  3865.06 25    D   H   (3-)      970.4 3 
  2134.5 3 
  100 17 
   83 9 


  2893.66
  1731.51
5-
2+
  3917.9 6   CD   H   2+     3263.1 5 
  100

   654.71
2+
  4034.5 4   CD   H   2+ 0.17 ps +10-5    1410.4 2 
  100
[E2]
  2624.1
(0+)
  4088.0 4 A          (4-,5-)     1539.6 3 
  100

  2550.28
(4+)
  4094.3 3        H   (5-)     1544.0 2 
  100

  2550.28
(4+)
  4134 6   C        2+        
  4231.8 9          J     1087.0 7 
  100

  3144.8
6+
  4244.98 20  B         (1-)     2513.3 2 
  2835.0 3 
   87 5 
  100 6 


  1731.51
  1410.22
2+
0+
  4391.3 4   C    H   2+ 0.13 ps 3    2981.0 3 
  100
[E2]
  1410.22
0+
  4466 4   C        (4+)        
  4535 7   CD       (4+)        
  4584 4   CD       (4+)        
  4809 13   C        (1-)        
  4881 13   C        (4+)        
  4969 11   C               
  4983.3 8          J (9+)     1465.4 8 
  100

  3517.8
8+
  5029 12   C        (1-)        
  5046.3 12          J     1252 1 ?
 

  3794.9
(7-)
  5192.0 10          J      960.2 5 
  100

  4231.8

E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  5457.0 8          J (10+) < 1.04 ps    473.7 5 
  1939.3 8 
  100
    7 3 

[E2]
  4983.3
  3517.8
(9+)
8+
  5687.0 9          J (11)      230.0 3 
  100

  5457.0
(10+)
  6128.9 10          J (12)      441.9 5 
  100

  5687.0
(11)

E(level): Levels connected by γ’s to the g.s. are calculated from the adopted gammas using least-squares fit. Others are from (p,p’), (t,p), or weighted averages of both.

T1/2(level): From ΔS(a) in (n,n’γ), unless indicated otherwise.

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Band Transitions:

E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - Yrast sequence (2009Po04)
     0 0+ 9.6×10+19 y 10 
% 2β- = 100
     
   654.71 16  2+ 12.8 ps 7     654.7 5 
  100
[E2]
     0
0+
  1735.10 24  4+ 0.96 ps 15    1079.8 5 
  100
[E2]
   654.71
2+
  3144.8 5  6+ 0.39 ps +13-9    1409.7 4 
 
[E2]
  1735.10
4+
  3517.8 5  8+ 6.6 ns 4 
% IT = 100 		   373.0 2 
  100
[E2]
  3144.8
6+
  5457.0 8  (10+) < 1.04 ps    473.7 5 
  1939.3 8 
  100
    7 3 

[E2]
  4983.3
  3517.8
(9+)
8+

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Additional Gamma Data:













E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
   654.71 2+ 12.8 ps 7     654.7 5 [E2]1.25×10-3B(E2)(W.u.)=17.3 10, α=1.25E-3, α(K)=0.001111 16, α(L)=0.0001181 17, α(M)=1.84E-5 3, α(N)=1.553E-6 22
  1410.22 0+ 30 ps    755.6 1 [E2]8.46×10-4B(E2)(W.u.)=3.62, α=8.46E-4, α(K)=0.000753 11, α(L)=7.96E-5 12, α(M)=1.238E-5 18, α(N)=1.050E-6 15
  1731.51 2+ 0.94 ps 11    1076.4 4 [E2]3.55×10-4B(E2)(W.u.)=4.1 10, α=3.55E-4, α(K)=0.000316 5, α(L)=3.30E-5 5, α(M)=5.14E-6 8, α(N)=4.38E-7 7
2+ 0.94 ps 11    1731.5 1 [E2]3.15×10-4B(E2)(W.u.)=1.45 21, α=3.15E-4, α(K)=0.0001172 17, α(L)=1.211E-5 17, α(M)=1.88E-6 3, α(N)=1.613E-7 23
  1735.10 4+ 0.96 ps 15    1079.8 5 [E2]3.52×10-4B(E2)(W.u.)=19 3, α=3.52E-4, α(K)=0.000314 5, α(L)=3.28E-5 5, α(M)=5.10E-6 8, α(N)=4.35E-7 7
  2550.28 (4+) 1.7 ps 3     818.6 2 [E2]6.87×10-4B(E2)(W.u.)=16 4, α=6.87E-4, α(K)=0.000612 9, α(L)=6.45E-5 9, α(M)=1.003E-5 14, α(N)=8.52E-7 12
(4+) 1.7 ps 3    1895.5 1 [E2]3.70×10-4B(E2)(W.u.)=0.26 6, α=3.70E-4, α(K)=9.88E-5 14, α(L)=1.019E-5 15, α(M)=1.586E-6 23, α(N)=1.358E-7 19
  2624.1 (0+) 0.04 ps 1    1969.4 3 [E2]3.98×10-4B(E2)(W.u.)=23 6, α=3.98E-4, α(K)=9.21E-5 13, α(L)=9.49E-6 14, α(M)=1.476E-6 21, α(N)=1.265E-7 18
  3009.14 3- 0.020 ps 5    2354.4 1 [E1]9.10×10-4B(E1)(W.u.)=0.0014 4, α=9.10E-4, α(K)=3.94E-5 6, α(L)=4.03E-6 6, α(M)=6.27E-7 9, α(N)=5.38E-8 8
  3144.8 6+ 0.39 ps +13-9    1409.7 4 [E2]2.53×10-4B(E2)(W.u.)=12 +3-5, α=2.53E-4, α(K)=0.0001763 25, α(L)=1.83E-5 3, α(M)=2.85E-6 4, α(N)=2.43E-7 4
  3238.78 (4+) 0.30 ps +12-8    1507.3 3 [E2]2.61×10-4B(E2)(W.u.)=4.9 +19-24, α=2.61E-4, α(K)=0.0001539 22, α(L)=1.594E-5 23, α(M)=2.48E-6 4, α(N)=2.12E-7 3
(4+) 0.30 ps +12-8    2584.0 2 [E2]6.55×10-4B(E2)(W.u.)=0.44 +14-19, α=6.55E-4, α(K)=5.69E-5 8, α(L)=5.85E-6 9, α(M)=9.10E-7 13, α(N)=7.80E-8 11
  3378.44 (3-) 0.12 ps 4    1646.9 3 [E1]4.44×10-4B(E1)(W.u.)=0.00033 14, α=4.44E-4, α(K)=6.77E-5 10, α(L)=6.94E-6 10, α(M)=1.079E-6 16, α(N)=9.25E-8 13
(3-) 0.12 ps 4    2723.7 3 [E1]1.12×10-3B(E1)(W.u.)=8.E-5 3, α=1.12E-3, α(K)=3.21E-5 5, α(L)=3.28E-6 5, α(M)=5.10E-7 8, α(N)=4.38E-8 7
  3517.8 8+ 6.6 ns 4 
% IT = 100
   373.0 2 [E2]0.00706B(E2)(W.u.)=0.56 4, α=0.00706, α(K)=0.00626 9, α(L)=0.000687 10, α(M)=0.0001067 15, α(N)=8.88E-6 13
  3591.67 2+ 0.28 ps +12-8    1859.9 2 [E2]3.57×10-4B(E2)(W.u.)=3.3 +12-16, α=3.57E-4, α(K)=0.0001024 15, α(L)=1.056E-5 15, α(M)=1.643E-6 23, α(N)=1.407E-7 20
2+ 0.28 ps +12-8    2182.0 3 [E2]4.84×10-4B(E2)(W.u.)=0.25 +9-12, α=4.84E-4, α(K)=7.65E-5 11, α(L)=7.87E-6 11, α(M)=1.224E-6 18, α(N)=1.049E-7 15
2+ 0.28 ps +12-8    3591 1 [E2]1.05×10-3B(E2)(W.u.)=0.015 +8-10, α=1.05E-3, α(K)=3.33E-5 5, α(L)=3.41E-6 5, α(M)=5.30E-7 8, α(N)=4.55E-8 7
  4034.5 2+ 0.17 ps +10-5    1410.4 2 [E2]2.53×10-4B(E2)(W.u.)=28 +9-17, α=2.53E-4, α(K)=0.0001761 25, α(L)=1.83E-5 3, α(M)=2.84E-6 4, α(N)=2.43E-7 4
  4391.3 2+ 0.13 ps 3    2981.0 3 [E2]8.21×10-4B(E2)(W.u.)=0.87 21, α=8.21E-4, α(K)=4.48E-5 7, α(L)=4.60E-6 7, α(M)=7.15E-7 10, α(N)=6.14E-8 9
  5457.0 (10+) < 1.04 ps   1939.3 8 [E2]3.86×10-4B(E2)(W.u.)>0.061, α=3.86E-4, α(K)=9.47E-5 14, α(L)=9.77E-6 14, α(M)=1.519E-6 22, α(N)=1.301E-7 19

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     00+ 9.6×10+19 y 10 
% 2β- = 100
From the half-life limit, deduced effective Majorana neutrino mass of <(376-770) meV, depending on the nuclear matrix element calculations (2018Az05).
E(level): From (HI,xnγ). Yrast sequence (2009Po04).
   654.712+ 12.8 ps 7  Q=-0.22 7 (1977Le11,2016St14), μ=+0.99 6 (1978Br38,2014StZZ)
E(level): From (HI,xnγ). Yrast sequence (2009Po04).
  1735.104+ 0.96 ps 15  μ=2.3 15 (1998Sp03,2014StZZ)
E(level): From (HI,xnγ). Yrast sequence (2009Po04).
  2550.28(4+) 1.7 ps 3  E(level): From 82As β- Decay (19.1 s).
T1/2(level): From 2018Li20, recoil-distance ΔS(a).
  2893.665- > 131.7 ps E(level): From 82As β- Decay (19.1 s).
T1/2(level): From 2018Li20, recoil-distance ΔS(a).
  3144.86+ 0.39 ps +13-9  E(level): From (HI,xnγ). Yrast sequence (2009Po04). From 82As β- Decay (19.1 s).
T1/2(level): From 2018Li20, recoil-distance ΔS(a).
  3238.78(4+) 0.30 ps +12-8  XREF: d(3293).
  3378.44(3-) 0.12 ps 4  XREF: d(3384).
  3445.90+   XREF: C(3449).
  3517.88+ 6.6 ns 4 
% IT = 100
E(level): From (HI,xnγ). Yrast sequence (2009Po04).
  3591.672+ 0.28 ps +12-8  XREF: C(3586).
  3631.26(0+)   XREF: d(3624).
  3688.9(4+)   XREF: d(3677).
  3757.02+   XREF: d(3750).
  4034.52+ 0.17 ps +10-5  XREF: d(4026).
  4535(4+)   XREF: C(4518).
  5457.0(10+) < 1.04 ps E(level): From (HI,xnγ). Yrast sequence (2009Po04). From 82As β- Decay (19.1 s).
T1/2(level): From 2018Li20, recoil-distance ΔS(a).

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Additional Gamma Comments:

E(level)E(gamma)Comments
  1731.51  1076.4E(γ): from β- decay
  2893.66   343.3E(γ): From (HI,xnγ)
I(γ): From (HI,xnγ)
  1158.3E(γ): From (HI,xnγ)
I(γ): From (HI,xnγ)
  3144.8  1409.7E(γ): From (HI,xnγ)
I(γ): From (HI,xnγ)
  3667.5  3667.4E(γ): From 82As β- Decay (19.1 s)
I(γ): From 82As β- Decay (19.1 s)
  3794.9   901.2E(γ): From (HI,xnγ)
I(γ): From (HI,xnγ)
  4231.8  1087.0E(γ): From (HI,xnγ)
I(γ): From (HI,xnγ)
  4244.98  2513.3E(γ): From (HI,xnγ)
I(γ): From (HI,xnγ)
  2835.0E(γ): From (HI,xnγ)
I(γ): From (HI,xnγ)
  4983.3  1465.4E(γ): From (HI,xnγ)
I(γ): From (HI,xnγ)
  5046.3  1252E(γ): From (HI,xnγ)
I(γ): From (HI,xnγ)
  5192.0   960.2E(γ): From (HI,xnγ)
I(γ): From (HI,xnγ)
  5457.0   473.7E(γ): From (HI,xnγ)
I(γ): From (HI,xnγ)
  1939.3E(γ): From (HI,xnγ)
I(γ): From (HI,xnγ)
  5687.0   230.0E(γ): From (HI,xnγ)
I(γ): From (HI,xnγ)
  6128.9   441.9E(γ): From (HI,xnγ)
I(γ): From (HI,xnγ)

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