ADOPTED LEVELS, GAMMAS for 120Ba

Authors: K. Kitao, Y. Tendow and A. Hashizume |  Citation: Nucl. Data Sheets 96, 241 (2002) |  Cutoff date: 1-Dec-2001 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-1.12×104 keV SYS(n)= 1.24×104 keV 4S(p)= 3.9×103 keV 3Q(α)= 1.7×103 keV 3
Reference: 2012WA38

References:
  A  (HI,xnγ)  B  121Ce εp decay

General Comments:

The decay scheme is that proposed by 2000Sm08 for positive parity levels and 1991Ce06 for negative parity levels

Q-value: Note: Current evaluation has used the following Q record

Q-value: The uncertainties given by 1995Au04 for Q(β-) and Q(α) are 667 and 388 keV, respectively.










E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
      0.0AB 0+ 24 s 2 
% ε = 100
     
    186.0 10 AB (2+)      185.8
   100
(E2)
      0.0
0+
    544.0 15 A  (4+)      358
  ≈100
(E2)
    186.0
(2+)
   1040.2 17 A  (6+)      496
  ≈100
(E2)
    544.0
(4+)
   1645A  (8+)      606
 
(E2)
   1040.2
(6+)
   1763.8 17 A  (5-)     1220
 

    544.0
(4+)
   2104.7 17 A  (7-)      341
   457
  1065
 
 
 



   1763.8
   1645
   1040.2
(5-)
(8+)
(6+)
   2336A  (10+)      691
 
(E2)
   1645
(8+)
   2566.8 19 A  (9-)      462
   920
 
 


   2104.7
   1645
(7-)
(8+)
   3083A  (12+)      747
 
(E2)
   2336
(10+)
   3137.8 21 A  (11-)      571
 

   2566.8
(9-)
   3814.8 24 A  (13-)      677
 

   3137.8
(11-)
   3856A  (14+)      773
 
(E2)
   3083
(12+)
   4244A  (14+)      388?
  1161
 
 
(E2)

   3856
   3083
(14+)
(12+)
   4588 3 A  (15-)      773
 

   3814.8
(13-)
   4656A  (16+)      800
 
(E2)
   3856
(14+)
   5064A  (16+)      820
 

   4244
(14+)
   5434 3 A  (17-)      846
 

   4588
(15-)
   5517A  (18+)      861
 
(E2)
   4656
(16+)
   5876A       812
 

   5064
(16+)
   6455A  (20+)      938
 
(E2)
   5517
(18+)
   6688A  (20+)      812
 

   5876

   7471A  (22+)     1016
 
Q
   6455
(20+)
   7569A  (22+)      881
  1112?
 
 


   6688
   6455
(20+)
(20+)
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
   8502A  (24+)      933
  1030
 
 


   7569
   7471
(22+)
(22+)
   8602A  (24+)     1131
 

   7471
(22+)
   9548A  (26+)     1046
 

   8502
(24+)
   9786A  (26+)     1184
 

   8602
(24+)
  10668A  (28+)     1120
 

   9548
(26+)
  11016A  (28+)     1230
 

   9786
(26+)
  11872A  (30+)     1204
 

  10668
(28+)
  12339A  (30+)     1323
 

  11016
(28+)
  13160A  (32+)     1288
 

  11872
(30+)
  13743A  (32+)     1404
 

  12339
(30+)
  14510A  (34+)     1350
 

  13160
(32+)
  15897A  (36+)     1387
 

  14510
(34+)
  17378A  (38+)     1481
 

  15897
(36+)
  18956A  (40+)     1576
 

  17378
(38+)
  20601A  (42+)     1645
 

  18956
(40+)

E(level): From a least-squares fit to E(γ’s), with uncertainties of 1 keV assigned by the evaluators to the E(γ’s).

Jπ(level): Given by the authors based on assumption of stretched E2 γ cascades and assigned band structure.

E(γ): From authors’ drawing (2000Sm08), unless otherwise noted

Back to top

Band Transitions:

E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - GS yrast band
      0.0 0+ 24 s 2 
% ε = 100
     
    186.0 10  (2+)      185.8
   100
(E2)
      0.0
0+
    544.0 15  (4+)      358
  ≈100
(E2)
    186.0
(2+)
   1040.2 17  (6+)      496
  ≈100
(E2)
    544.0
(4+)
   1645 (8+)      606
 
(E2)
   1040.2
(6+)
   2336 (10+)      691
 
(E2)
   1645
(8+)
   3083 (12+)      747
 
(E2)
   2336
(10+)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - πh11/22 band
   3856 (14+)        
   4656 (16+)      800
 
(E2)
   3856
(14+)
   5517 (18+)      861
 
(E2)
   4656
(16+)
   6455 (20+)      938
 
(E2)
   5517
(18+)
   7471 (22+)     1016
 
Q
   6455
(20+)
   8602 (24+)     1131
 

   7471
(22+)
   9786 (26+)     1184
 

   8602
(24+)
  11016 (28+)     1230
 

   9786
(26+)
  12339 (30+)     1323
 

  11016
(28+)
  13743 (32+)     1404
 

  12339
(30+)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - νh11/22πh11/22 band
   6688 (20+)        
   7569 (22+)      881
  1112?
 
 


   6688
   6455
(20+)
(20+)
   8502 (24+)      933
  1030
 
 


   7569
   7471
(22+)
(22+)
   9548 (26+)     1046
 

   8502
(24+)
  10668 (28+)     1120
 

   9548
(26+)
  11872 (30+)     1204
 

  10668
(28+)
  13160 (32+)     1288
 

  11872
(30+)
  14510 (34+)     1350
 

  13160
(32+)
  15897 (36+)     1387
 

  14510
(34+)
  17378 (38+)     1481
 

  15897
(36+)
  18956 (40+)     1576
 

  17378
(38+)
  20601 (42+)     1645
 

  18956
(40+)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 4 - νh11/22 band
   4244 (14+)        
   5064 (16+)      820
 

   4244
(14+)
   5876      812
 

   5064
(16+)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 5 - NEGATIVE PARITY band.
   1763.8 17  (5-)        
   2104.7 17  (7-)      341
   457
  1065
 
 
 



   1763.8
   1645
   1040.2
(5-)
(8+)
(6+)
   2566.8 19  (9-)      462
   920
 
 


   2104.7
   1645
(7-)
(8+)
   3137.8 21  (11-)      571
 

   2566.8
(9-)
   3814.8 24  (13-)      677
 

   3137.8
(11-)
   4588 3  (15-)      773
 

   3814.8
(13-)
   5434 3  (17-)      846
 

   4588
(15-)

Back to top

Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
      0.00+ 24 s 2 
% ε = 100
E(level): GS yrast band.
    186.0(2+)   E(level): GS yrast band.
    544.0(4+)   E(level): GS yrast band.
   1040.2(6+)   E(level): GS yrast band.
   1645(8+)   E(level): GS yrast band.
   1763.8(5-)   E(level): NEGATIVE PARITY band. Suggested configuration as an h11/2 proton coupled to a 9/2[404] orbital by 2000Sm08.
   2104.7(7-)   E(level): NEGATIVE PARITY band. Suggested configuration as an h11/2 proton coupled to a 9/2[404] orbital by 2000Sm08.
   2336(10+)   E(level): GS yrast band.
   2566.8(9-)   E(level): NEGATIVE PARITY band. Suggested configuration as an h11/2 proton coupled to a 9/2[404] orbital by 2000Sm08.
   3083(12+)   E(level): GS yrast band.
   3137.8(11-)   E(level): NEGATIVE PARITY band. Suggested configuration as an h11/2 proton coupled to a 9/2[404] orbital by 2000Sm08.
   3814.8(13-)   E(level): NEGATIVE PARITY band. Suggested configuration as an h11/2 proton coupled to a 9/2[404] orbital by 2000Sm08.
   3856(14+)   E(level): πh11/22 band.
   4244(14+)   E(level): νh11/22 band.
   4588(15-)   E(level): NEGATIVE PARITY band. Suggested configuration as an h11/2 proton coupled to a 9/2[404] orbital by 2000Sm08.
   4656(16+)   E(level): πh11/22 band.
   5064(16+)   E(level): νh11/22 band.
   5434(17-)   E(level): NEGATIVE PARITY band. Suggested configuration as an h11/2 proton coupled to a 9/2[404] orbital by 2000Sm08.
   5517(18+)   E(level): πh11/22 band.
   5876   E(level): νh11/22 band.
   6455(20+)   E(level): πh11/22 band.
   6688(20+)   E(level): νh11/22πh11/22 band.
   7471(22+)   E(level): πh11/22 band.
   7569(22+)   E(level): νh11/22πh11/22 band.
   8502(24+)   E(level): νh11/22πh11/22 band.
E(level)Jπ(level)T1/2(level)Comments
   8602(24+)   E(level): πh11/22 band.
   9548(26+)   E(level): νh11/22πh11/22 band.
   9786(26+)   E(level): πh11/22 band.
  10668(28+)   E(level): νh11/22πh11/22 band.
  11016(28+)   E(level): πh11/22 band.
  11872(30+)   E(level): νh11/22πh11/22 band.
  12339(30+)   E(level): πh11/22 band.
  13160(32+)   E(level): νh11/22πh11/22 band.
  13743(32+)   E(level): πh11/22 band.
  14510(34+)   E(level): νh11/22πh11/22 band.
  15897(36+)   E(level): νh11/22πh11/22 band.
  17378(38+)   E(level): νh11/22πh11/22 band.
  18956(40+)   E(level): νh11/22πh11/22 band.
  20601(42+)   E(level): νh11/22πh11/22 band.

Back to top

Additional Gamma Comments:

E(level)E(gamma)Comments
    186.0    185.8E(γ): from 121Ce εp decay
   3856    773E(γ): Interband (crossing) transition
   4244   1161E(γ): Interband (crossing) transition
   6688    812E(γ): Interband (crossing) transition
   8502   1030E(γ): Interband (crossing) transition

Back to top