ADOPTED LEVELS for 275Mt
Author: C. Morse | Citation: Nucl. Data Sheets 182, 130 (2022). | Cutoff date: 14-Sep-2021
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-2899 keV SY | S(n)= 6554 keV SY | S(p)= 1928 keV SY | Q(α)= 1.048×104 keV 5 | ||
| Reference: 2021WA16 |
| References: | |||
| A | 279Rg α decay (0.09 S) | ||
| E(level) (keV) | XREF | T1/2(level) |
| 0 | A | 20 ms +24-7 % α = 100 % SF ≤ 25 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
$ 275Mt has been observed as the α-decay daughter of 279Rg at JINR (2004Og03,2013Og01) and GSI (2013Ru11). Events were identified by the observation of chains of correlated α decays, terminated by spontaneous fission. Comparison of the chains with previous studies 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-)=516, ΔS(n)=540, ΔS(p)=608 (2021Wa16)
Q-value: S(2n)=12158 syst 575, S(2p)=6495 syst 761 (2021Wa16)