Authors: E. Browne, J. K. Tuli |  Citation: Nucl. Data Sheets 108,2173 (2007) |  Cutoff date: 1-Oct-2006 

 Full ENSDF file | Adopted Levels (PDF version) 

Q(β-)=9.3×103 keV 3S(n)= 3.6×103 keV 3S(p)= 1.14×104 keV SYQ(α)= -5.0×103 keV SY
Reference: 2012WA38

General Comments:

2002Sh08: spallation of U with 1 GeV p. Observed 137Sn decay.

1998Do08, 1994Do08: 238U on Pb, 750 MeV/α. Fission products analyzed for α and Z with fragment separator. Determined production cross section.

Activity, T1/2=2.0 s 6, seen as a 235U fission product. Assignment to 137Sb by 1976OtZW, is not confirmed.

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

Q-value: ΔQ(β-)=420,ΔS(n)=500 (syst,2003Au03)

Q-value: Q(β-n)=6100 400 (syst,2003Au03)

Jπ(level) T1/2(level)
  0.0 (7/2+) 450 ms 50 
% β- = 100
% β-n = 49 10

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Additional Level Data and Comments:

  0.0(7/2+) 450 ms 50 
% β- = 100
% β-n = 49 10
t,β-n: extrapolated values based on properties of 133Sb and 135Sb (2002Sh08).

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