ADOPTED LEVELS, GAMMAS for 186Pb

Authors: J. C. Batchelder and A. M. Hurst, M. S. Basunia |  Citation: Nucl. Data Sheets 183, 1 (2022) |  Cutoff date: 1-Mar-2022 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-11535 keV 20S(n)= 11211 keV 20S(p)= 2212 keV 23Q(α)= 6471 keV 5
Reference: 2021Wa16

References:
  A  190Po α decay  B  106Pd(83Kr,3nγ)
  C  142Nd(48Ti,4nγ)  D  154Gd(36Ar,4nγ)








E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0.0ABCD 0+ 4.81 s 3 
% ε = 60 8
% α = 40 8
     
   530 21 A    (0+)      530
 
(E0)
     0.0
0+
   649 21 A    (0+)      649
 
(E0)
     0.0
0+
   662.16 19  BCD (2+) 12.5 ps 35     662.2 2 
   100
(E2)
     0.0
0+
   922.74 21  BCD (4+) 12.5 ps 28     260.6 1 
   100
(E2)
   662.16
(2+)
   945.30 25  B   (2+)      945.2 3 
   100
Q
     0.0
0+
  1259.84 23  BCD (6+) 4.2 ps 14     337.1 1 
   100
(E2)
   922.74
(4+)
  1307.1 5  B   (3+)      361.8 5 
   384 4 ?
   645 1 ?
   100 44 
  <122
   <56



   945.30
   922.74
   662.16
(2+)
(4+)
(2+)
  1336.9 3  B   (4+)      391.5 2 
   414.5 5 
   674.5 6 
   100 18 
    53 18 
    35 13 
Q


   945.30
   922.74
   662.16
(2+)
(4+)
(2+)
  1643.8 9  B   (5+)      307 2 ?
   337 1 ?
   384 4 ?
   720 2 
   <31.6
   <36.8
   <58
   100 32 




  1336.9
  1307.1
  1259.84
   922.74
(4+)
(3+)
(6+)
(4+)
  1674.65 25  BCD (8+) 3.5 ps 14     414.8 1 
   100
(E2)
  1259.84
(6+)
  1738.2 4  B   (6+)      401.3 6 
   478.8 5 
   100 13 
    69 9 
Q
D
  1336.9
  1259.84
(4+)
(6+)
  2049.2 10  B   (7+)      405.3 6 
   790 4 
    78 33 
   100 44 


  1643.8
  1259.84
(5+)
(6+)
  2160.7 4  BCD (10+)      486.0 3 
   100
Q
  1674.65
(8+)
  2162.3 4  B   (8+)      424.1 2 
   487.4 4 
   100 12 
    55 14 
Q

  1738.2
  1674.65
(6+)
(8+)
  2286.8 15  B   (7-)     1027 2 
   100

  1259.84
(6+)
  2518.7 11  B   (9+)      469.5 4 
   844 3 
   100 25 
   <18.8


  2049.2
  1674.65
(7+)
(8+)
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  2592.8 4  B   (9-)      306 2 ?
   918.1 3 
   <41.7
   100 33 


  2286.8
  1674.65
(7-)
(8+)
  2625.0 5  B   (10+)      462.7 2 
   100

  2162.3
(8+)
  2710.3 6  BCD (12+)      549.6 4 
   100
Q
  2160.7
(10+)
  2866.2 6  B        705.5 4 
   100

  2160.7
(10+)
  2961.9 5  B   (11-)      369.1 4 
   801.2 5 
    90 30 
   100 30 


  2592.8
  2160.7
(9-)
(10+)
  3045.7 15  B   (11+)      527 1 
   100

  2518.7
(9+)
  3132.6 6  B   (12+)      507.6 3 
   100

  2625.0
(10+)
  3315.9 10  B D (14+)      605.6 8 
   100

  2710.3
(12+)
  3381.4 6  B   (13-)      419.5 3 
   100

  2961.9
(11-)
  3409.2 12  B        543 1 
   100

  2866.2

  3683.9 11  B   (14+)      551.3 9 
   100

  3132.6
(12+)
  3842.7 9  B   (15-)      461.3 7 
   100

  3381.4
(13-)
  3968.1 11  B   (16+)      652.2 5 
   100

  3315.9
(14+)
  4341.1 12 ? B   (17-)      498.4 7 ?
   100

  3842.7
(15-)
  4636.1 23 ? B   (18+)      668 2 ?
   100

  3968.1
(16+)
  5309.1 25 ? B   (20+)      673 1 ?
   100

  4636.1
(18+)

E(level): From a least-squares fit to γ-ray energies - for levels connected by γ transitions, including uncertain placed γ-rays.

Jπ(level): Based on γ-ray angular distribution measurements and rotational band assignments in (83Kr,3nγ), except where noted.

T1/2(level): From (83Kr,3nγ) using recoil distance Doppler-shift method

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Band Transitions:

E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - Band I. Prolate band
   662.16 19  (2+) 12.5 ps 35       
   922.74 21  (4+) 12.5 ps 28     260.6 1 
   100
(E2)
   662.16
(2+)
  1259.84 23  (6+) 4.2 ps 14     337.1 1 
   100
(E2)
   922.74
(4+)
  1674.65 25  (8+) 3.5 ps 14     414.8 1 
   100
(E2)
  1259.84
(6+)
  2160.7 4  (10+)      486.0 3 
   100
Q
  1674.65
(8+)
  2710.3 6  (12+)      549.6 4 
   100
Q
  2160.7
(10+)
  3315.9 10  (14+)      605.6 8 
   100

  2710.3
(12+)
  3968.1 11  (16+)      652.2 5 
   100

  3315.9
(14+)
  4636.1 23  (18+)      668 2 ?
   100

  3968.1
(16+)
  5309.1 25  (20+)      673 1 ?
   100

  4636.1
(18+)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - Band II. Oblate band
   945.30 25  (2+)        
  1336.9 3  (4+)      391.5 2 
   414.5 5 
   674.5 6 
   100 18 
    53 18 
    35 13 
Q


   945.30
   922.74
   662.16
(2+)
(4+)
(2+)
  1738.2 4  (6+)      401.3 6 
   478.8 5 
   100 13 
    69 9 
Q
D
  1336.9
  1259.84
(4+)
(6+)
  2162.3 4  (8+)      424.1 2 
   487.4 4 
   100 12 
    55 14 
Q

  1738.2
  1674.65
(6+)
(8+)
  2625.0 5  (10+)      462.7 2 
   100

  2162.3
(8+)
  3132.6 6  (12+)      507.6 3 
   100

  2625.0
(10+)
  3683.9 11  (14+)      551.3 9 
   100

  3132.6
(12+)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - Band III. Candidate for an octupole band
  2286.8 15  (7-)        
  2592.8 4  (9-)      306 2 ?
   918.1 3 
   <41.7
   100 33 


  2286.8
  1674.65
(7-)
(8+)
  2961.9 5  (11-)      369.1 4 
   801.2 5 
    90 30 
   100 30 


  2592.8
  2160.7
(9-)
(10+)
  3381.4 6  (13-)      419.5 3 
   100

  2961.9
(11-)
  3842.7 9  (15-)      461.3 7 
   100

  3381.4
(13-)
  4341.1 12  (17-)      498.4 7 ?
   100

  3842.7
(15-)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 4 - Band IV. Possible gamma band
  1307.1 5  (3+)        
  1643.8 9  (5+)      307 2 ?
   337 1 ?
   384 4 ?
   720 2 
   <31.6
   <36.8
   <58
   100 32 




  1336.9
  1307.1
  1259.84
   922.74
(4+)
(3+)
(6+)
(4+)
  2049.2 10  (7+)      405.3 6 
   790 4 
    78 33 
   100 44 


  1643.8
  1259.84
(5+)
(6+)
  2518.7 11  (9+)      469.5 4 
   844 3 
   100 25 
   <18.8


  2049.2
  1674.65
(7+)
(8+)
  3045.7 15  (11+)      527 1 
   100

  2518.7
(9+)

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Additional Gamma Data:













E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
   662.16 (2+) 12.5 ps 35     662.2 2 (E2)0.01548B(E2)(W.u.)=5.6 16, α=0.01548, α(K)=0.01169 17, α(L)=0.00288 4, α(M)=0.000701 10, α(N)=0.0001776 25, α(O)=3.41E-5 5, α(P)=2.96E-6 5
   922.74 (4+) 12.5 ps 28     260.6 1 (E2)0.178B(E2)(W.u.)=5.1×102 12, α=0.178, α(K)=0.0905 13, α(L)=0.0654 10, α(M)=0.01691 24, α(N)=0.00427 6, α(O)=0.000780 11, α(P)=4.45E-5 7
  1259.84 (6+) 4.2 ps 14     337.1 1 (E2)0.0823B(E2)(W.u.)=4.5×102 16, α=0.0823, α(K)=0.0496 7, α(L)=0.0245 4, α(M)=0.00626 9, α(N)=0.001583 23, α(O)=0.000293 5, α(P)=1.90E-5 3
  1674.65 (8+) 3.5 ps 14     414.8 1 (E2)0.0468B(E2)(W.u.)=2.0×102 8, α=0.0468, α(K)=0.0311 5, α(L)=0.01186 17, α(M)=0.00299 5, α(N)=0.000756 11, α(O)=0.0001413 20, α(P)=1.014E-5 15

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.00+ 4.81 s 3 
% ε = 60 8
% α = 40 8
δ|4r2|5(186Pb-208Pb)=-1.048 fm2 10 (2007De09,2009Se13); uncertainty from isotope shift is 0.005 fm2.
   662.16(2+) 12.5 ps 35  E(level): Band I. Prolate band.
   922.74(4+) 12.5 ps 28  E(level): Band I. Prolate band.
   945.30(2+)   E(level): Band II. Oblate band.
  1259.84(6+) 4.2 ps 14  E(level): Band I. Prolate band.
  1307.1(3+)   E(level): Band IV. Possible gamma band.
  1336.9(4+)   E(level): Band II. Oblate band.
  1643.8(5+)   E(level): Band IV. Possible gamma band.
  1674.65(8+) 3.5 ps 14  E(level): Band I. Prolate band.
  1738.2(6+)   E(level): Band II. Oblate band.
  2049.2(7+)   E(level): Band IV. Possible gamma band.
  2160.7(10+)   E(level): Band I. Prolate band.
  2162.3(8+)   E(level): Band II. Oblate band.
  2286.8(7-)   E(level): Band III. Candidate for an octupole band.
  2518.7(9+)   E(level): Band IV. Possible gamma band.
  2592.8(9-)   E(level): Band III. Candidate for an octupole band.
  2625.0(10+)   E(level): Band II. Oblate band.
  2710.3(12+)   E(level): Band I. Prolate band.
  2961.9(11-)   E(level): Band III. Candidate for an octupole band.
  3045.7(11+)   E(level): Band IV. Possible gamma band.
  3132.6(12+)   E(level): Band II. Oblate band.
  3315.9(14+)   E(level): Band I. Prolate band.
  3381.4(13-)   E(level): Band III. Candidate for an octupole band.
  3683.9(14+)   E(level): Band II. Oblate band.
  3842.7(15-)   E(level): Band III. Candidate for an octupole band.
E(level)Jπ(level)T1/2(level)Comments
  3968.1(16+)   E(level): Band I. Prolate band.
  4341.1(17-)   E(level): Band III. Candidate for an octupole band.
  4636.1(18+)   E(level): Band I. Prolate band.
  5309.1(20+)   E(level): Band I. Prolate band.

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Additional Gamma Comments:

E(level)E(gamma)Comments
   530   530E(γ): From level energy difference.
M(γ): From 190Po α decay
   649   649E(γ): From level energy difference.
M(γ): From 190Po α decay
  1307.1   384E(γ): Multiply placed with undivided intensity
I(γ): Multiply placed with undivided intensity
  1643.8   384E(γ): Multiply placed with undivided intensity
I(γ): Multiply placed with undivided intensity
  1674.65   414.8M(γ): From (48Ti,4nγ) and RUL
  2160.7   486.0E(γ): Weighted ave. of data from (83Kr,3nγ), (36Ar,4nγ), and (48Ti,4nγ).
  2710.3   549.6E(γ): Weighted ave. of data from (83Kr,3nγ), (36Ar,4nγ), and (48Ti,4nγ).

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