ADOPTED LEVELS for 257Fm
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-)=-406 keV 7 | S(n)= 4968 keV 6 | S(p)= 5886 keV SY | Q(α)= 6863.6 keV 14 | ||
| Reference: 2012WA38 |
| References: | |||
| A | 257Md ε decay | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) |
| 0.0 | A | (9/2+) | 100.5 d 2 % α = 99.790 4 % SF = 0.210 4 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
Calculations, compilations:
α decay: 1993Bu09, 2003De17
Spontaneous Fission: 2009Zh36, 2008Sa24, 2005Ka42, 2005Re16, 2004Ro01, 2001Ng04
Ground state properties: 1997Mo25, 1995Mo29
Heavy cluster spontaneous emission: 1986Po15
Pion decay: 1988Io05
Single-particle Nilsson levels: 1994Cw02, 2005Pa73, 2000Pa12
Q(α), T1/2: 2011Zh36, 2010Ni02, 2009Sa25, 2008Do12, 2005GuZU
Calculated neutron-separation energy: 2004Pa31.
1994Cw02 calculate the following single-particle level sequence: g.s., 7 /2[613]; 0.00 MeV, 11/2[725]; 0.02 MeV, 3/2[622]; 0.07 MeV, 1/2[620]; 0.20 MeV, 9/2[615].
Q-value: Estimated ΔS(p)=100 (2012Wa38)