Author: C. Morse |  Citation: Nucl. Data Sheets 182, 130 (2022). |  Cutoff date: 14-Sep-2021 

 Full ENSDF file | Adopted Levels (PDF version) 

Q(β-)=-1832 keV SYS(n)= 6442 keV SYS(p)= 2861 keV SYQ(α)= 9.42×103 keV 9
Reference: 2021WA16

  A  275Mt α decay (20 MS) 

General Comments:

$ 271Bh has been observed as the α-decay daughter of 275Mt at JINR (2004Og03,2013Og01) and GSI (2013Ru11). Chains of correlated α decays terminated by spontaneous fission were observed, and comparison of their properties to previously observed chains allowed individual decays to be assigned to specific nuclei.

$ Half-lives, branching ratios, and α-decay energies in this evaluation have been computed from the individual events listed in the references above. Half-life uncertainties have been computed according to the method of 1984Sc13. An additional 10 keV systematic uncertainty is assumed for the α-decay energies, which is added in quadrature to the averaged statistical uncertainty.

Q-value: ΔQ(β-)=473, ΔS(n)=486, ΔS(p)=598 (2021Wa16)

Q-value: S(2n)=11761 syst 536, S(2p)=7867 syst 732 (2021Wa16)

XREF T1/2(level)
  0A 1.5 s +28-6 
% α = 100
% SF ≤ 25

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Additional Level Data and Comments:


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