ADOPTED LEVELS for 263Db

Author: Agda Artna-cohen |  Citation: Nucl. Data Sheets 88, 155 (1999) |  Cutoff date: 31-Jul-1999 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-3.08×103 keV SYS(n)= 7.22×103 keV SYS(p)= 2.6×103 keV SYQ(α)= 8.83×103 keV SY
Reference: 2012WA38

General Comments:

Calculations, compilations:

g.s. properties: 1995Mo29, 1997Mo25

Single-particle Nilsson levels: 1994Cw02

1994Cw02 calculate the following single-particle level sequence:

g.s. 9/2[624], 0.23 MeV 5/2[512], 0.29 MeV 1/2[521], 0.46 MeV 7/2[514].

Assignment: 249Bk(18O,4n), ion chem, parent of 259Lr from α - SF correlation (1992Kr01), (preliminary report 1987GrZN)

Chemistry of Lr - detection of 263Lr α’s (1992Go28,1993Zi06)

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

Q-value: Estimated ΔQ(β-)=210, ΔS(n)=250, ΔS(p)=300, ΔQ(α)=150 (1995Au04)




E(level)
(keV)
T1/2(level)
  0.0 27 s +10-7 
% α = 43 14
% SF = 57 14

Back to top

Back to top

Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
  0.0 27 s +10-7 
% α = 43 14
% SF = 57 14
Calculated T1/2(α)≈1×104 s, T1/2(SF)≈100 s (1988Lo03); T1/2(α)≈100 s (1990Ha26).

Back to top