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

 Full ENSDF file | Adopted Levels (PDF version) 

Q(β-)=-3409 keV SYS(n)= 5492 keV SYS(p)= 3828 keV SYQ(α)= 9460 keV SY
Reference: 2021WA16

General Comments:

$ 271Hs has been observed in gas-phase chemistry experiments at GSI (2006Dv01,2008Dv02). Events were identified based on the observation of chains of α-decaying nuclei correlated in time and position.

$ 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-)=430, ΔS(n)=371, ΔS(p)=406, ΔQ(α)=87 (2021Wa16)

Q-value: S(2n)=12945 syst 305, S(2p)=6579 syst 460 (2021Wa16)

  0 % α = 100
% SF < 15

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Additional Level Data and Comments:


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