ADOPTED LEVELS, GAMMAS for 127Sn

Author: A. Hashizume |  Citation: Nucl. Data Sheets 112, 1647 (2011) |  Cutoff date: 1-Oct-2009 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=3228 keV 11S(n)= 5527 keV 15S(p)= 1.299×104 keV 3Q(α)= -8482 keV 11
Reference: 2012WA38

References:
  A  127In β- decay (1.09 S)  B  127In β- decay (3.67 S)
  C  127In β- decay (1.04 S)  D  127Sn IT decay (4.52 μs)
  E  9Be(238U,xγ) 

General Comments:

Mass excess (Penning-Trap spectrometer): -83463 11 (2008Dw01)

Binding energy and two-neutron separation energy are calculated by HFB (Hartree-Fock-Bogoliubov) with effective interactions. (2008Ma17)

Assignment: 235U(n,F) E=th, on-line mass separation

Nuclear structure calculations on the levels and their properties: 2009Sa31, 2007Ji14, 2000Yo08, 1998Ho11, 1996An11, 1992In02, 1985Ha17, 1979Mi14

Q-value: Note: Current evaluation has used the following Q record 3201 24 5550 27 12970 50 -8610 50 2003Au03










E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0.0ABCDE 11/2- 2.10 h 4 
% β- = 100
     
     5.07 6 AB    3/2+ 4.13 m 3 
% β- = 100
     
   257.76 8 AB    (1/2)+      252.70 4 
  100.0
M1
     5.07
3/2+
   646.31 4 ABCD  (9/2)-      646.34 4 
  100.0
M1,E2
     0.0
11/2-
   809.94 6 AB    (5/2+)      805.00 5 
  100.0

     5.07
3/2+
   953.95 9 AB    (1/2,3/2)      144.02 16 
   696.4 3 
   948.90 17 
   13 3 
   27 4 
  100 10 



   809.94
   257.76
     5.07
(5/2+)
(1/2)+
3/2+
   963.61 6 AB    (7/2-)      317.61 16 
   963.61 12 
    3.5 4 
  100 11 


   646.31
     0.0
(9/2)-
11/2-
  1053.62 6 A     (7/2+)      243.75 4 
  1048.54 3 
    7.1 8 
  100 10 
M1,E2

   809.94
     5.07
(5/2+)
3/2+
  1090.61 12  B    (1/2,3/2)      832.83 15 
  1085.62 18 
   80 8 
  100 9 


   257.76
     5.07
(1/2)+
3/2+
  1094.61 15   CDE (15/2-)     1094.7 2 
  100.0

     0.0
11/2-
  1233.41 24 AB    (3/2+)      975.8 4 
  1228.4 3 
    1.0E2 3 
    9E1 3 


   257.76
     5.07
(1/2)+
3/2+
  1242.79 13   CDE (13/2-)     1242.71 15 
  100.0

     0.0
11/2-
  1331.55 11 AB    (5/2+)     1073.8 8 
  1326.47 9 
    5.0 15 
  100 10 


   257.76
     5.07
(1/2)+
3/2+
  1501.5 4 ?  C        406.9 7 
  100.0

  1094.61
(15/2-)
  1555.91 6 A     (7/2-,9/2+)      502.6 5 
   592.1 4 
   746.07 8 
   909.67 8 
  1555.70 10 
    7.6 9 
   10.5 17 
   51 5 
   30 3 
  100 11 





  1053.62
   963.61
   809.94
   646.31
     0.0
(7/2+)
(7/2-)
(5/2+)
(9/2)-
11/2-
  1602.65 6 A     (7/2+)      549.14 12 
   639.07 4 
   792.76 5 
   956.32 9 
  1597.43 6 
  1602.6 5 
    0.50 5 
    6.0 6 
    3.7 4 
   10.1 10 
  100.0
    0.50 20 






  1053.62
   963.61
   809.94
   646.31
     5.07
     0.0
(7/2+)
(7/2-)
(5/2+)
(9/2)-
3/2+
11/2-
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  1618.40 16 A     (7/2,9/2+)      565.3 10 
   808.8 4 
   972.5 6 
  1618.7 3 
   17 5 
  100 12 
    7.8 22 
   47 4 




  1053.62
   809.94
   646.31
     0.0
(7/2+)
(5/2+)
(9/2)-
11/2-
  1625.32 19   CD       979.1 5 
  100.0

   646.31
(9/2)-
  1702.59 7 A     (7/2+)      649.1 5 
   748.9 3 
   892.65 4 
  1697.3 2 
   17 3 
   12.0 16 
  100 10 
   31 4 




  1053.62
   953.95
   809.94
     5.07
(7/2+)
(1/2,3/2)
(5/2+)
3/2+
  1810.13 15   CDE (15/2+)      184.81 13 
   567.26 15 
   715.52 4 
    3.6 5 
   22.6 22 
  100 9 



  1625.32
  1242.79
  1094.61

(13/2-)
(15/2-)
  1819.9 3  B    (1/2,3/2)     1814.8 3 
  100.0

     5.07
3/2+
  1826.67 16   CDE (19/2+) 4.52 µs 15      16.52 11 
   732.04 11 
    0.277 22 
  100 11 
E2

  1810.13
  1094.61
(15/2+)
(15/2-)
  1909.54 7 A     (7/2+)      353.63 9 
   577.9 5 
   855.94 4 
   945.9 2 
  1099.6 2 
  1262.8 5 
  1904.1 2 
   53 6 
   18.6 21 
  100 11 
   34 5 
   50 6 
    3.6 11 
   23.7 21 







  1555.91
  1331.55
  1053.62
   963.61
   809.94
   646.31
     5.07
(7/2-,9/2+)
(5/2+)
(7/2+)
(7/2-)
(5/2+)
(9/2)-
3/2+
  1916.45 18   C   (19/2-)      821.89 11 
  100.0

  1094.61
(15/2-)
  1930.97 17   C E (23/2+) 1.19 µs 13     104.30 6 
  100.00
(E2)
  1826.67
(19/2+)
  2024.21 8 A     (7/2+)      321.7 4 
   421.56 8 
   468.3 2 
   970.5 2 
  1070.54 10 
  1214.04 9 
    4.4 5 
    6.6 8 
  100 11 
   20.1 22 
   38 6 
   79 8 






  1702.59
  1602.65
  1555.91
  1053.62
   953.95
   809.94
(7/2+)
(7/2+)
(7/2-,9/2+)
(7/2+)
(1/2,3/2)
(5/2+)
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  2042.52 11 A     (7/2+)      424.4 2 
   487.2 3 
   809.7 6 
   989.4 2 
  1088.34 9 
  100 10 
   38 5 
   22 7 
   63 7 
   43 9 





  1618.40
  1555.91
  1233.41
  1053.62
   953.95
(7/2,9/2+)
(7/2-,9/2+)
(3/2+)
(7/2+)
(1/2,3/2)
  2045.98 20   C   (19/2)      219.2 2 
   236.0 2 
  100 13 
   48 9 


  1826.67
  1810.13
(19/2+)
(15/2+)
  2047.4 3   C E (19/2-)      952.8 3 
  100.0

  1094.61
(15/2-)
  2083.5 4   C        257.3 7 
  100.00

  1826.67
(19/2+)
  2165.8 3   C   (19/2)     1071.3 5 
  100.00

  1094.61
(15/2-)
  2232.10 20   C E (21/2+)      301.14 13 
   405.4 3 
   77 10 
  100 14 


  1930.97
  1826.67
(23/2+)
(19/2+)
  2260.3 9  B    (1/2,3/2)     1169.7 9 
  100.0

  1090.61
(1/2,3/2)
  2311.8 3   C   (19/2,17/2)      395.6 7 
  1217.4 10 
    1.0E2 3 
    8E1 3 


  1916.45
  1094.61
(19/2-)
(15/2-)
  2410.4 9     E (23/2-)      363.1 3 
   479.7 3 
   28 4 
  100 11 
(E2)
(E1)
  2047.4
  1930.97
(19/2-)
(23/2+)
  2442.69 10 A     (7/2,9/2)      740.0 8 
   840.4 8 
  1111.0 6 
  1389.07 8 
  1632.7 3 
  1796.2 6 
    0.9 6 
   10.3 15 
    8 3 
  100 10 
   30 5 
    4.2 17 






  1702.59
  1602.65
  1331.55
  1053.62
   809.94
   646.31
(7/2+)
(7/2+)
(5/2+)
(7/2+)
(5/2+)
(9/2)-
  2464.79 10 A     (7/2,9/2)     1133.2 7 
  1411.3 2 
  1818.6 4 
  2464.70 12 
    4.8 17 
   15 5 
   11 4 
  100 11 




  1331.55
  1053.62
   646.31
     0.0
(5/2+)
(7/2+)
(9/2)-
11/2-
  2515.25 15 A     (7/2,9/2)     1184.0 9 
  1705.3 2 
  2515.2 2 
    6 3 
   16 7 
  100 9 



  1331.55
   809.94
     0.0
(5/2+)
(5/2+)
11/2-
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  2552.4 10     E (27/2-) 0.25 µs 3     142.0 3 
  100.0
(E2)
  2410.4
(23/2-)
  2630.5 4   C   (19/2,21/2)      464.6 4 
   583.2 5 
   65 13 
  100 12 


  2165.8
  2047.4
(19/2)
(19/2-)
  2733.82 24   C        501.9 10 
   650.5 9 
   688.0 3 
   803.2 9 
   16 7 
   28 10 
   53 7 
  100 16 




  2232.10
  2083.5
  2045.98
  1930.97
(21/2+)

(19/2)
(23/2+)
  2791.38 15 A     (7/2,9/2)     1737.8 3 
  1827.5 6 
  1981.40 17 
  2145.2 4 
   25 7 
    4.7 23 
  100 11 
    9.8 18 




  1053.62
   963.61
   809.94
   646.31
(7/2+)
(7/2-)
(5/2+)
(9/2)-
  2822.3 3 A     (7/2,9/2)     1768.8 3 
  1858.4 6 
  2175.7 7 
    6E1 3 
   38 12 
  100 16 



  1053.62
   963.61
   646.31
(7/2+)
(7/2-)
(9/2)-
  2886.3 6  B    (1/2,3/2)     2628.5 5 
  100.00

   257.76
(1/2)+
  3287.67 21   C       1461.02 13 
  100.00

  1826.67
(19/2+)
  3333.38 11  B    (3/2)     1513.0 9 
  2001.9 7 
  2242.8 2 
  2369.5 3 
  3075.62 10 
  3328.20 19 
    4.5 10 
    5.9 7 
   10.0 12 
    9.9 12 
  100 11 
   37 5 






  1819.9
  1331.55
  1090.61
   963.61
   257.76
     5.07
(1/2,3/2)
(5/2+)
(1/2,3/2)
(7/2-)
(1/2)+
3/2+
  3397.60 22  B    (1/2,3/2)     3139.8 2 
  100.0

   257.76
(1/2)+
  3564.5 4  B    (3/2)     3306.7 4 
  100.00

   257.76
(1/2)+
  3605.12 19   C   (19/2-)      871.4 2 
   974.7 8 
  1293.3 2 
  1373.1 7 
  1439.4 3 
  1521.8 5 
  1558.5 9 
  1689.0 3 
  1778.3 2 
  2103.6 4 
  2510.3 2 
   23.1 23 
    6.3 12 
    9.0 12 
    3.7 12 
   12.7 15 
    8.6 8 
   14.9 23 
    6.0 8 
  100 10 
    6.3 8 
   40 5 











  2733.82
  2630.5
  2311.8
  2232.10
  2165.8
  2083.5
  2045.98
  1916.45
  1826.67
  1501.5
  1094.61

(19/2,21/2)
(19/2,17/2)
(21/2+)
(19/2)

(19/2)
(19/2-)
(19/2+)

(15/2-)
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  3647.22 24   C   (19/2,21/2)      359.58 13 
  1819.7 7 
  100 12 
  100 18 


  3287.67
  1826.67

(19/2+)
  3860.9 9   C       2766.3 8 
  100.0

  1094.61
(15/2-)
  3899.5 11   C       2804.9 11 
  100.0

  1094.61
(15/2-)

E(level): From a least-squares fit to the adopted E(γ’s) (evaluator)

Jπ(level): 1998Ho11 reported shell model calculation on Sn isotopes using effective interaction under model space which includes 2s1/2 1d3/2, 1d5/2, 0g7/2, 0h11/2 neutron hole orbitals. The results on level energies and Jπ in 127Sn agree relatively well up to 1.5 MeV. However, first 3/2+ and second 5/2+ have lower energies and first 7/2+ has higher energies, reversing level order. 2000Yo08 calculated level energies and Jπ using IBFM (interacting boson fermion model). The predictions and experimental results are relatively well reproduced up to 1300 keV,

Jπ(level): 2004Ga24 have proposed a model where the neutron in s1/2 or d3/2 orbitals couples to the 2+ state in 128Sn according to the systematics in even and odd Sn nuclei. The energies of 2+ states in even Sn nuclei are calculated by 2000Yo08 using IBFM, 2000Zh19 by BOSM(nucleon pair shell model), 2004Ts03 by QPPM (quasiparticle phonon model), 2002Te10 by QPRHA (quasiparticle random phase approximation).

Jπ(level): Dominant configurations of levels in 128Sn are following: 1st 2+: ν (h11/2)-2 (2004Ga24) 1st 5-: ν ((h11/2)-1~#(s1/2)) (2008Jo03), (1974Kr15) 1st 7-: ν ((h11/2)-1~#(d3/2)) (2008Jo03), (1974Kr15)

Jπ(level): The configurations shown in each level are most dominant one proposed from one of above authors.

T1/2(level): γ(t) from 127Sn produced by 9Be(238U,F) and 9Be(136Xe,X) (2008Lo07); γ(t) from 127Sn produced by 233U(n,F) and 239Pu(n,F) (2000Pi03)); from βγ(t) delayed coincidence (2004Ga24): for all excited states, except the 5.07 level

M(γ): From electron conversion coefficients in 127In β- decay (3.67 s) or 127In β- decay (1.09 s)

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Additional Gamma Data:













E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
   257.76 (1/2)+      252.70 4 M10.0446α=0.0446, α(K)=0.0387 6, α(L)=0.00482 7, α(M)=0.000944 14, α(N)=0.0001776 25, α(O)=1.549×10-5 22, α(N+)=0.000193 3
   646.31 (9/2)-      646.34 4 M1,E20.0040α=0.0040 3, α(K)=0.0034 3, α(L)=0.000430 21, α(M)=8.4×10-5 4, α(N)=1.58E-5 8, α(O)=1.34E-6 12, α(N+)=1.71E-5 10
  1053.62 (7/2+)      243.75 4 M1,E20.060α=0.060 11, α(K)=0.051 9, α(L)=0.0075 23, α(M)=0.0015 5, α(N)=0.00027 8, α(O)=2.0×10-5 4, α(N+)=0.00029 9
  1826.67 (19/2+) 4.52 µs 15      16.52 11 E22.32×103B(E2)(W.u.)=1.00 10, α=2.32E3 9, α(L)=1.87E3 7, α(M)=384 15, α(N)=65.9 25, α(O)=1.36 5, α(N+)=67.3 25
  1930.97 (23/2+) 1.19 µs 13     104.30 6 (E2)1.374α=1.374, α(K)=1.008 15, α(L)=0.294 5, α(M)=0.0600 9, α(N)=0.01063 16, α(O)=0.000474 7, α(N+)=0.01110 16
  2410.4 (23/2-)      363.1 3 (E2)0.0192α=0.0192, α(K)=0.01631 24, α(L)=0.00237 4, α(M)=0.000469 7, α(N)=8.65×10-5 13, α(O)=6.41E-6 10, α(N+)=9.29E-5 14
(23/2-)      479.7 3 (E1)0.00263α=0.00263 4, α(K)=0.00229 4, α(L)=0.000274 4, α(M)=5.34×10-5 8, α(N)=1.002E-5 15, α(O)=8.48E-7 12, α(N+)=1.086E-5 16
  2552.4 (27/2-) 0.25 µs 3     142.0 3 (E2)0.461α=0.461 8, α(K)=0.361 6, α(L)=0.0805 14, α(M)=0.0163 3, α(N)=0.00291 5, α(O)=0.0001541 25, α(N+)=0.00307 5

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.011/2- 2.10 h 4 
% β- = 100
μ=-1.329 7
Configuration=(ν h11/2).
     5.073/2+ 4.13 m 3 
% β- = 100
Q=+0.30 13, μ=+0.757 4
Configuration=(ν d3/2).
   257.76(1/2)+   Configuration=(ν s1/2).
   646.31(9/2)-   Configuration=(128Sn 2+)(ν (h11/2)-1).
   953.95(1/2,3/2)   Configuration=(128Sn 2+)(ν (d3/2)-1) and/or (128Sn 2+)(ν (s1/2)-1).
   963.61(7/2-)   Configuration=(128Sn 2+)(ν (h11/2)-1).
  1053.62(7/2+)   Configuration=(128Sn 2+)(ν d3/2)-1).
  1090.61(1/2,3/2)   Configuration=(128Sn 2+)(ν (d3/2)-1) and/or (128Sn 2+)(ν (s1/2)-1).
  1094.61(15/2-)   Configuration=(128Sn 2+)(ν (h11/2)-1).
  1233.41(3/2+)   Configuration=(128Sn 2+)(ν (d3/2)-1) and/or (128Sn 2+)(ν (s1/2)-1).
  1242.79(13/2-)   Configuration=(128Sn 2+)(ν (h11/2)-1).
  1331.55(5/2+)   Configuration=(ν d5/2).
  1501.5   The order of feeding 2103.8γ and 406.9γ is not known, and so this level may actually be at 3198.3.
E(level): The order of feeding 2103.8γ and 406.9γ is not known, and so this level may actually be at 3198.3.
  1602.65(7/2+)   Configuration=(ν g7/2).
  1826.67(19/2+) 4.52 µs 15  Configuration=(ν (d3/2)-1)(ν (h11/2)-2) (2008Lo07).
  1930.97(23/2+) 1.19 µs 13  Configuration=(ν (d3/2)-1)(ν (h11/2)-2) (2008Lo07).
  2311.8(19/2,17/2)   γ from (19/2-), γ to (15/2-) and (19/2).
  3605.12(19/2-)   Configuration=(ν h11/2-1d3/2-1)7-) (ν g7/2)-1).

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Additional Gamma Comments:

E(level)E(gamma)Comments
   257.76   252.70M(γ): from 3.67S decay
  1090.61   832.83E(γ): From 127In β- decay (3.67 s)
  1085.62E(γ): From 127In β- decay (3.67 s)
  1094.61  1094.7E(γ): From 127In β- decay (1.04 s)
  1242.79  1242.71E(γ): From 127In β- decay (1.04 s)
  1501.5   406.9E(γ): From 127In β- decay (1.04 s)
  1625.32   979.1E(γ): From 127In β- decay (1.04 s)
  1810.13   184.81E(γ): From 127In β- decay (1.04 s)
   567.26E(γ): From 127In β- decay (1.04 s)
   715.52E(γ): From 127In β- decay (1.04 s)
  1826.67    16.52E(γ): From 127In β- decay (1.04 s)
I(γ): Intensity is estimated from transition intensity balance of 4.52 μs isomer by evaluator
   732.04E(γ): From 127In β- decay (1.04 s)
  1916.45   821.89E(γ): From 127In β- decay (1.04 s)
  1930.97   104.30E(γ): From 127In β- decay (1.04 s)
  2045.98   219.2E(γ): From 127In β- decay (1.04 s)
   236.0E(γ): From 127In β- decay (1.04 s)
  2047.4   952.8E(γ): From 127In β- decay (1.04 s)
  2083.5   257.3E(γ): From 127In β- decay (1.04 s)
  2165.8  1071.3E(γ): From 127In β- decay (1.04 s)
  2232.10   301.14E(γ): From 127In β- decay (1.04 s)
   405.4E(γ): From 127In β- decay (1.04 s)
  2260.3  1169.7E(γ): From 127In β- decay (3.67 s)
  2311.8   395.6E(γ): From 127In β- decay (1.04 s)
  1217.4E(γ): From 127In β- decay (1.04 s)
  2552.4   142.0E(γ): From 9Be(238U,X)
E(level)E(gamma)Comments
  2630.5   464.6E(γ): From 127In β- decay (1.04 s)
   583.2E(γ): From 127In β- decay (1.04 s)
  2733.82   501.9E(γ): From 127In β- decay (1.04 s)
   650.5E(γ): From 127In β- decay (1.04 s)
   688.0E(γ): From 127In β- decay (1.04 s)
   803.2E(γ): From 127In β- decay (1.04 s)
  2886.3  2628.5E(γ): From 127In β- decay (3.67 s)
  3287.67  1461.02E(γ): From 127In β- decay (1.04 s)
  3333.38  1513.0E(γ): From 127In β- decay (3.67 s)
  2001.9E(γ): From 127In β- decay (3.67 s)
  2242.8E(γ): From 127In β- decay (3.67 s)
  2369.5E(γ): From 127In β- decay (3.67 s)
  3075.62E(γ): From 127In β- decay (3.67 s)
  3328.20E(γ): From 127In β- decay (3.67 s)
  3397.60  3139.8E(γ): From 127In β- decay (3.67 s)
  3564.5  3306.7E(γ): From 127In β- decay (3.67 s)
  3605.12   871.4E(γ): From 127In β- decay (1.04 s)
   974.7E(γ): From 127In β- decay (1.04 s)
  1293.3E(γ): From 127In β- decay (1.04 s)
  1373.1E(γ): From 127In β- decay (1.04 s)
  1439.4E(γ): From 127In β- decay (1.04 s)
  1521.8E(γ): From 127In β- decay (1.04 s)
  1558.5E(γ): From 127In β- decay (1.04 s)
  1689.0E(γ): From 127In β- decay (1.04 s)
  1778.3E(γ): From 127In β- decay (1.04 s)
  2103.6E(γ): From 127In β- decay (1.04 s)
  2510.3E(γ): From 127In β- decay (1.04 s)
E(level)E(gamma)Comments
  3647.22   359.58E(γ): From 127In β- decay (1.04 s)
  1819.7E(γ): From 127In β- decay (1.04 s)
  3860.9  2766.3E(γ): From 127In β- decay (1.04 s)
  3899.5  2804.9E(γ): From 127In β- decay (1.04 s)

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