ADOPTED LEVELS, GAMMAS for 135Pm

Authors: Balraj Singh, Alexander A. Rodionov and Yuri L. Khazov |  Citation: Nucl. Data Sheets 109, 517 (2008) |  Cutoff date: 22-Jan-2008 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-7.17×103 keV 17S(n)= 1.136×104 keV 9S(p)= 1.67×103 keV 7Q(α)= 1.85×103 keV 8
Reference: 2012WA38

References:
  A  135Sm ε decay (10.3 S)  B  92Mo(46Ti,3PG)
  C  107Ag(32S,2P2NG)  D  116Sn(24Mg,p4nγ)
  E  136Eu εp decay (3.3 S+3.8 S) 

General Comments:

Identical bands (systematics): 1992Zh10

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

Q-value: Q(εp)=1250 70 (2003Au03)










E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
     0+XA     (3/2+,5/2+) 49 s 3 
% ε = 100
     
     0+Y  C   (5/2+)        
      55.38+X 12 A     (+)       55.4 2 
  100
(M1,E2)
     0+X
(3/2+,5/2+)
      68.7+Y 22  B D  (11/2-) 45 s 4 
% ε = 100
     
     104.57+X 13 A           49.1 2 
   104.6 2 
   22 7 
  100 22 


      55.38+X
     0+X
(+)
(3/2+,5/2+)
     126.0+Y 10   C        126
 

     0+Y
(5/2+)
     181.70+X 11 A           77.2 2 
   126.3 2 
   181.7 2 
   36 11 
  100 11 
   25 6 



     104.57+X
      55.38+X
     0+X

(+)
(3/2+,5/2+)
     251.0+Y 15   C        125
 

     126.0+Y

     341.24+X 12 A          159.5 4 
   236.6 3 
   285.9 2 
   341.3 2 
    3 1 
  ≈52
  100 12 
   ≈8




     181.70+X
     104.57+X
      55.38+X
     0+X


(+)
(3/2+,5/2+)
     355.5+Y 22  BCD  (15/2-) 49 ps 2     286.8 1 
  100
E2
      68.7+Y
(11/2-)
     418.31+X 13 A           77.2 2 
   236.6 3 
   313.4 4 
   363.0 2 
   418.2 2 
   ≈1
  ≈54
   12 4 
  100 12 
   31 6 





     341.24+X
     181.70+X
     104.57+X
      55.38+X
     0+X



(+)
(3/2+,5/2+)
     489.0+Y 18   C        238
 

     251.0+Y

     531.62+X 17 A          190.3 2 
   350.0 2 
  100 10 
   20 5 


     341.24+X
     181.70+X


     554.0+Y 15   C   (11/2+)      428
 

     126.0+Y

     609.85+X 21 A          428.2 2 
  100

     181.70+X

     725.25+X 21 A          115.5 3 
   543.5 2 
   31 8 
  100 19 


     609.85+X
     181.70+X


E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
     754.70+X 16 A          573.0 2 
   754.7 2 
   75 20 
  100 25 


     181.70+X
     0+X

(3/2+,5/2+)
     814.0+Y 20   C        325
 

     489.0+Y

     869.2+Y 22  BCD  (19/2-) 4.2 ps 5     513.7 1 
  100
E2
     355.5+Y
(15/2-)
    1092.0+Y 18   C   (15/2+)      538
 

     554.0+Y
(11/2+)
    1205.0+Y 23   C        391
 

     814.0+Y

    1232.2+Y 24   C        363
 

     869.2+Y
(19/2-)
    1242.2+Y 24   C   (19/2+)      373
 

     869.2+Y
(19/2-)
    1313.8+X 6 A         1132.1 5 
  100

     181.70+X

    1367.2+Y 24   C   (21/2+)      498
 

     869.2+Y
(19/2-)
    1527.6+Y 22  BCD  (23/2-) 1.7 ps 4     658.4 2 
  100
E2
     869.2+Y
(19/2-)
    1643.0+Y 25   C        438
 

    1205.0+Y

    1657.0+Y 20   C   (19/2+)      565
   788
 
 


    1092.0+Y
     869.2+Y
(15/2+)
(19/2-)
  1786+Y 3   C        554
 

    1232.2+Y

  1855+Y 3   C   (23/2+)      613
 

    1242.2+Y
(19/2+)
  1988+Y 3   C   (25/2+)      621
 

    1367.2+Y
(21/2+)
    2062.4+Y 22  BCD  (21/2+)     1193.1 2 
  100
D
     869.2+Y
(19/2-)
  2116+Y 3   C        473
 

    1643.0+Y

    2183.8+Y 22   C   (23/2+)      527
   656
 
 


    1657.0+Y
    1527.6+Y
(19/2+)
(23/2-)
    2276.7+Y 22  BCD  (27/2-)      749.1 1 
  100
(Q)
    1527.6+Y
(23/2-)
  2346+Y 3   C        560
 

  1786+Y

    2465.9+Y 22  BCD  (25/2+)      403.5 1 
   938.4 3 
  100 7 
  <96
Q

    2062.4+Y
    1527.6+Y
(21/2+)
(23/2-)
  2504+Y 3   C   (27/2+)      649
 

  1855+Y
(23/2+)
  2686+Y 3   C   (29/2+)      698
 

  1988+Y
(25/2+)
    2739.8+Y 24   C   (27/2+)      556
 

    2183.8+Y
(23/2+)
  2920+Y 3   C        574
 

  2346+Y

    3029.6+Y 22   CD  (29/2+)      563.7 2 
  100

    2465.9+Y
(25/2+)
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
    3081.9+Y 22  BCD  (31/2-)      805.2 2 
  100
Q
    2276.7+Y
(27/2-)
  3201+Y 3   C   (31/2+)      697
 

  2504+Y
(27/2+)
  3397+Y 3   C   (31/2+)      657
 

    2739.8+Y
(27/2+)
  3438+Y 3   C   (33/2+)      752
 

  2686+Y
(29/2+)
  3541+Y 4   C        621
 

  2920+Y

    3769.6+Y 22   CD  (33/2+)      740.0 3 
  100

    3029.6+Y
(29/2+)
    3929.0+Y 23  BCD  (35/2-)      847.1 4 
  100
Q
    3081.9+Y
(31/2-)
  3969+Y 4   C   (35/2+)      768
 

  3201+Y
(31/2+)
  4186+Y 3   C   (35/2+)      789
 

  3397+Y
(31/2+)
  4260+Y 4   C        719
 

  3541+Y

  4265+Y 4   C   (37/2+)      827
 

  3438+Y
(33/2+)
    4616.6+Y 25   C   (37/2+)      847
 

    3769.6+Y
(33/2+)
    4773.1+Y 24 ?   D  (39/2-)      844.1 9 
  100

    3929.0+Y
(35/2-)
  4816+Y 4   C   (39/2+)      847
 

  3969+Y
(35/2+)
    4827.8+Y 23  BC   (39/2-)      898.8 4 
  100
Q
    3929.0+Y
(35/2-)
  5048+Y 3   C   (39/2+)      862
 

  4186+Y
(35/2+)
  5192+Y 4   C   (41/2+)      927
 

  4265+Y
(37/2+)
       5.5E3 15 A            
  5517+Y 3   C   (41/2+)      900
 

    4616.6+Y
(37/2+)
    5792.5+Y 23  BC   (43/2-)      964.7 4 
  100
Q
    4827.8+Y
(39/2-)
  5950+Y 4   C   (43/2+)      902
 

  5048+Y
(39/2+)
  6513+Y 3   C   (45/2+)      996
 

  5517+Y
(41/2+)
    6824.3+Y 25  BC   (47/2-)     1031.8 8 
  100
Q
    5792.5+Y
(43/2-)

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

Jπ(level): For high-spin states (J>11/2) the assignments are mostly based on band assignments augmented by γγ(θ)(DCO) and γ(θ) data for selected transitions

E(γ): For high-spin levels, energies quoted with uncertainties are from 116Sn(24Mg,p4nγ) reaction, others are from 107Ag(32S,2p2nγ)

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Band Transitions:

E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - πh11/2 3/2[541], α=-1/2.
      68.7+Y 22  (11/2-) 45 s 4 
% ε = 100
     
     355.5+Y 22  (15/2-) 49 ps 2       
     869.2+Y 22  (19/2-) 4.2 ps 5     513.7 1 
  100
E2
     355.5+Y
(15/2-)
    1527.6+Y 22  (23/2-) 1.7 ps 4       
    2276.7+Y 22  (27/2-)      749.1 1 
  100
(Q)
    1527.6+Y
(23/2-)
    3081.9+Y 22  (31/2-)      805.2 2 
  100
Q
    2276.7+Y
(27/2-)
    3929.0+Y 23  (35/2-)      847.1 4 
  100
Q
    3081.9+Y
(31/2-)
    4827.8+Y 23  (39/2-)      898.8 4 
  100
Q
    3929.0+Y
(35/2-)
    5792.5+Y 23  (43/2-)      964.7 4 
  100
Q
    4827.8+Y
(39/2-)
    6824.3+Y 25  (47/2-)     1031.8 8 
  100
Q
    5792.5+Y
(43/2-)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - band BASED ON (11/2+), α=-1/2.
     554.0+Y 15  (11/2+)        
    1092.0+Y 18  (15/2+)        
    1657.0+Y 20  (19/2+)      565
   788
 
 


    1092.0+Y
     869.2+Y
(15/2+)
(19/2-)
    2183.8+Y 22  (23/2+)        
    2739.8+Y 24  (27/2+)      556
 

    2183.8+Y
(23/2+)
  3397+Y 3  (31/2+)      657
 

    2739.8+Y
(27/2+)
  4186+Y 3  (35/2+)      789
 

  3397+Y
(31/2+)
  5048+Y 3  (39/2+)      862
 

  4186+Y
(35/2+)
  5950+Y 4  (43/2+)      902
 

  5048+Y
(39/2+)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - Band based on (21/2+), α=+1/2.
    2062.4+Y 22  (21/2+)        
    2465.9+Y 22  (25/2+)        
    3029.6+Y 22  (29/2+)      563.7 2 
  100

    2465.9+Y
(25/2+)
    3769.6+Y 22  (33/2+)        
    4616.6+Y 25  (37/2+)      847
 

    3769.6+Y
(33/2+)
  5517+Y 3  (41/2+)      900
 

    4616.6+Y
(37/2+)
  6513+Y 3  (45/2+)      996
 

  5517+Y
(41/2+)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 4 - band BASED ON (19/2+), α=-1/2.
    1242.2+Y 24  (19/2+)        
  1855+Y 3  (23/2+)        
  2504+Y 3  (27/2+)      649
 

  1855+Y
(23/2+)
  3201+Y 3  (31/2+)        
  3969+Y 4  (35/2+)      768
 

  3201+Y
(31/2+)
  4816+Y 4  (39/2+)      847
 

  3969+Y
(35/2+)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 5 - Band based on (21/2+), α=+1/2.
    1367.2+Y 24  (21/2+)        
  1988+Y 3  (25/2+)        
  2686+Y 3  (29/2+)      698
 

  1988+Y
(25/2+)
  3438+Y 3  (33/2+)        
  4265+Y 4  (37/2+)      827
 

  3438+Y
(33/2+)
  5192+Y 4  (41/2+)      927
 

  4265+Y
(37/2+)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 6 - γ cascade.
     126.0+Y 10         
     251.0+Y 15         
     489.0+Y 18       238
 

     251.0+Y

     814.0+Y 20         
    1205.0+Y 23       391
 

     814.0+Y

    1643.0+Y 25       438
 

    1205.0+Y

  2116+Y 3       473
 

    1643.0+Y

E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 7 - γ cascade.
    1232.2+Y 24         
  1786+Y 3         
  2346+Y 3       560
 

  1786+Y

  2920+Y 3         
  3541+Y 4       621
 

  2920+Y

  4260+Y 4       719
 

  3541+Y

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Additional Gamma Data:













E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityConversion
Coefficient
Additional Data
      55.38+X (+)       55.4 2 (M1,E2)15α=15 7, α(K)=5.9 15, α(L)=7 7, α(M)=1.6 15, α(N+)=0.44
     355.5+Y (15/2-) 49 ps 2     286.8 1 E2B(E2)(W.u.)=138 6
     869.2+Y (19/2-) 4.2 ps 5     513.7 1 E2B(E2)(W.u.)=91 11
    1527.6+Y (23/2-) 1.7 ps 4     658.4 2 E2B(E2)(W.u.)=66 16

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0+X(3/2+,5/2+) 49 s 3 
% ε = 100
1. High-spin assignments made by 1989Vi04 to low lying levels populated by 135Sm decay were based, presumably, on the identification of one common γ ray at 286 keV in 135Sm decay and in high-spin studies on 135Pm (1987Be22,1988Wa01). From γγ evidence, 1989Vi04 proposed that 286γ deexcites a level at 341 keV. Three other γ rays at 160, 237 and 341 keV also deexcited this level. In the in-beam γ study (1987Be22,1988Wa01) there is no evidence in the γγ spectra (figure 3 in 1987Be22 and figure 1 in 1988Wa01) for the existence of either the strong 237γ or the weaker (but likely to be seen by 1988Wa01 and 1987Be22) 341γ. It should also be noted that Eγ=285.9 2 (1989Vi04) in 135Sm decay does not agree with 286.8 1 (1987Be22) in in-beam study, although 1988Wa01 report 286.2 2. The γ-ray energies reported by 1988Wa01 are systematically lower by ≈1 keV as compared to those in 1987Be22. Based on the γγ evidence and γ-ray energies, the evaluators suggest that either the placement of 286γ is incorrect in 135Sm decay (1989Vi04) or that it is independent of the 286 γ seen in the in-beam studies.
E(level): 1. High-spin assignments made by 1989Vi04 to low lying levels populated by 135Sm decay were based, presumably, on the identification of one common γ ray at 286 keV in 135Sm decay and in high-spin studies on 135Pm (1987Be22,1988Wa01). From γγ evidence, 1989Vi04 proposed that 286γ deexcites a level at 341 keV. Three other γ rays at 160, 237 and 341 keV also deexcited this level. In the in-beam γ study (1987Be22,1988Wa01) there is no evidence in the γγ spectra (figure 3 in 1987Be22 and figure 1 in 1988Wa01) for the existence of either the strong 237γ or the weaker (but likely to be seen by 1988Wa01 and 1987Be22) 341γ. It should also be noted that Eγ=285.9 2 (1989Vi04) in 135Sm decay does not agree with 286.8 1 (1987Be22) in in-beam study, although 1988Wa01 report 286.2 2. The γ-ray energies reported by 1988Wa01 are systematically lower by ≈1 keV as compared to those in 1987Be22. Based on the γγ evidence and γ-ray energies, the evaluators suggest that either the placement of 286γ is incorrect in 135Sm decay (1989Vi04) or that it is independent of the 286 γ seen in the in-beam studies.
      68.7+Y(11/2-) 45 s 4 
% ε = 100
E(level): πh11/2 3/2[541], α=-1/2.
     126.0+Y   E(level): γ cascade.
     251.0+Y   E(level): γ cascade.
     355.5+Y(15/2-) 49 ps 2  E(level): πh11/2 3/2[541], α=-1/2.
T1/2(level): From RDDS (1987Wa02) in 92Mo(46Ti,3pγ).
     489.0+Y   E(level): γ cascade.
     554.0+Y(11/2+)   E(level): band BASED ON (11/2+), α=-1/2.
     814.0+Y   E(level): γ cascade.
     869.2+Y(19/2-) 4.2 ps 5  E(level): πh11/2 3/2[541], α=-1/2.
T1/2(level): From RDDS (1987Wa02) in 92Mo(46Ti,3pγ).
    1092.0+Y(15/2+)   E(level): band BASED ON (11/2+), α=-1/2.
    1205.0+Y   E(level): γ cascade.
    1232.2+Y   E(level): γ cascade.
    1242.2+Y(19/2+)   E(level): band BASED ON (19/2+), α=-1/2.
    1367.2+Y(21/2+)   E(level): Band based on (21/2+), α=+1/2.
    1527.6+Y(23/2-) 1.7 ps 4  E(level): πh11/2 3/2[541], α=-1/2.
T1/2(level): From RDDS (1987Wa02) in 92Mo(46Ti,3pγ).
    1643.0+Y   E(level): γ cascade.
    1657.0+Y(19/2+)   E(level): band BASED ON (11/2+), α=-1/2.
  1786+Y   E(level): γ cascade.
  1855+Y(23/2+)   E(level): band BASED ON (19/2+), α=-1/2.
  1988+Y(25/2+)   E(level): Band based on (21/2+), α=+1/2.
    2062.4+Y(21/2+)   E(level): Band based on (21/2+), α=+1/2.
  2116+Y   E(level): γ cascade.
    2183.8+Y(23/2+)   E(level): band BASED ON (11/2+), α=-1/2.
    2276.7+Y(27/2-)   E(level): πh11/2 3/2[541], α=-1/2.
  2346+Y   E(level): γ cascade.
E(level)Jπ(level)T1/2(level)Comments
    2465.9+Y(25/2+)   E(level): Band based on (21/2+), α=+1/2.
  2504+Y(27/2+)   E(level): band BASED ON (19/2+), α=-1/2.
  2686+Y(29/2+)   E(level): Band based on (21/2+), α=+1/2.
    2739.8+Y(27/2+)   E(level): band BASED ON (11/2+), α=-1/2.
  2920+Y   E(level): γ cascade.
    3029.6+Y(29/2+)   E(level): Band based on (21/2+), α=+1/2.
    3081.9+Y(31/2-)   E(level): πh11/2 3/2[541], α=-1/2.
  3201+Y(31/2+)   E(level): band BASED ON (19/2+), α=-1/2.
  3397+Y(31/2+)   E(level): band BASED ON (11/2+), α=-1/2.
  3438+Y(33/2+)   E(level): Band based on (21/2+), α=+1/2.
  3541+Y   E(level): γ cascade.
    3769.6+Y(33/2+)   E(level): Band based on (21/2+), α=+1/2.
    3929.0+Y(35/2-)   E(level): πh11/2 3/2[541], α=-1/2.
  3969+Y(35/2+)   E(level): band BASED ON (19/2+), α=-1/2.
  4186+Y(35/2+)   E(level): band BASED ON (11/2+), α=-1/2.
  4260+Y   E(level): γ cascade.
  4265+Y(37/2+)   E(level): Band based on (21/2+), α=+1/2.
    4616.6+Y(37/2+)   E(level): Band based on (21/2+), α=+1/2.
  4816+Y(39/2+)   E(level): band BASED ON (19/2+), α=-1/2.
    4827.8+Y(39/2-)   E(level): πh11/2 3/2[541], α=-1/2.
  5048+Y(39/2+)   E(level): band BASED ON (11/2+), α=-1/2.
  5192+Y(41/2+)   E(level): Band based on (21/2+), α=+1/2.
  5517+Y(41/2+)   E(level): Band based on (21/2+), α=+1/2.
    5792.5+Y(43/2-)   E(level): πh11/2 3/2[541], α=-1/2.
  5950+Y(43/2+)   E(level): band BASED ON (11/2+), α=-1/2.
E(level)Jπ(level)T1/2(level)Comments
  6513+Y(45/2+)   E(level): Band based on (21/2+), α=+1/2.
    6824.3+Y(47/2-)   E(level): πh11/2 3/2[541], α=-1/2.

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Additional Gamma Comments:

E(level)E(gamma)Comments
      55.38+X      55.4M(γ): estimated from α(exp) in 135Sm ε decay (1989Vi04)
     181.70+X      77.2E(γ): Multiply placed with intensity suitably divided
I(γ): Multiply placed with intensity suitably divided
     341.24+X     236.6E(γ): Multiply placed with intensity suitably divided
I(γ): Multiply placed with intensity suitably divided
     355.5+Y     286.8M(γ): γγ(θ) and RUL(for E2 and M2)
     418.31+X      77.2E(γ): Multiply placed with intensity suitably divided
I(γ): Multiply placed with intensity suitably divided
     236.6E(γ): Multiply placed with intensity suitably divided
I(γ): Multiply placed with intensity suitably divided
     869.2+Y     513.7M(γ): γγ(θ) and RUL(for E2 and M2)
    1527.6+Y     658.4M(γ): γγ(θ) and RUL(for E2 and M2)
    2062.4+Y    1193.1M(γ): γ(θ) and/or γγ(θ) indicate ΔJ=1, dipole
    2276.7+Y     749.1M(γ): γ(θ) and/or γγ(θ) indicate ΔJ=2, quadrupole (E2)
    2465.9+Y     403.5M(γ): γ(θ) and/or γγ(θ) indicate ΔJ=2, quadrupole (E2)
     938.4I(γ): unresolved doublet
    3081.9+Y     805.2M(γ): γ(θ) and/or γγ(θ) indicate ΔJ=2, quadrupole (E2)
    3929.0+Y     847.1M(γ): γ(θ) and/or γγ(θ) indicate ΔJ=2, quadrupole (E2)
    4827.8+Y     898.8M(γ): γ(θ) and/or γγ(θ) indicate ΔJ=2, quadrupole (E2)
    5792.5+Y     964.7M(γ): γ(θ) and/or γγ(θ) indicate ΔJ=2, quadrupole (E2)
    6824.3+Y    1031.8M(γ): γ(θ) and/or γγ(θ) indicate ΔJ=2, quadrupole (E2)

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