ADOPTED LEVELS for 257Es
Authors: E. Browne, J. K. Tuli | Citation: Nucl. Data Sheets 114, 1041 (2013) | Cutoff date: 1-Mar-2012
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=813 keV SY | S(n)= 5855 keV SY | S(p)= 4926 keV SY | Q(α)= 6050 keV SY | ||
| Reference: 2012WA38 |
| E(level) (keV) | T1/2(level) |
| 0.0 | 7.7 d 2 % β- = ? % SF = ? |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
Calculations, compilations:
Ground state properties: 1997Mo25, 1995Mo29, 2011Me01
Single-particle Nilsson levels: 1994Cw02
Q(α), T1/2: 2011Sa40
1994Cw02 have calculated the following single-particle level sequence: g.s., 7/2[633]; 0.18 MeV, 7/2[514]; 0.30 MeV, 3/2[521]; 0.30 MeV, 1/2[521]; 0.46 MeV, 5/2[642]; 0.50 MeV, 1/2[660]; 0.62 MeV, 3/2[651]
Q-value: Estimated ΔQ(β-)=411, ΔS(n)=423, ΔS(p)=517, ΔQ(α)=200 (2012Wa38)