ADOPTED LEVELS:NOT OBSERVED for 39Mg
Author: Jun Chen | Citation: Nucl. Data Sheets 149, 1 (2018) | Cutoff date: 1-Jan-2018
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=21630 keV SY | S(n)= -130 keV SY | ||||
| Reference: 2017WA10 |
| E(level) (keV) | T1/2(level) |
| 0? | < 180 ns % n = ? |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | < 180 ns % n = ? | Calculated %n=14.4, %2N=57.8 (2003Mo09). |
39Mg is unbound i.e. particle unstable (2007Ba71, 2002Lu09, 2002No11)
2007Ba71: W(48Ca,Xγ) E=141 MeV/nucleon beam from the National Superconducting Cyclotron Laboratory (NSCL). The fragments were separated with the A1900 fragment separator. Isotopic identification by multiple ΔE signals, magnetic rigidity, total energy and time of flight analysis. Detectors: plastic scintillators, parallel-plate avalanche counters (PPACs) and silicon PIN diodes. No events could be assigned to 39Mg confirming that this nucleus is unbound towards particle emission
2002Lu19, 2002No11: 181Ta(48Ca,X) reaction at 59 and 64 MeV/nucleon; GANIL-RIKEN-Dubna collaborations; LISE 2000 fragment spectrometer at GANIL and RIPS at RIKEN; measured spectra from fragmentation of 48Ca beam; Particle-unbound character of 39Mg is deduced from non-observation of expected 30 events in the reaction used.
Nuclear structure calculations: 2016Ba59, 2016Ha15, 2016Sh05, 2014Wa14, 2013Li39, 2006Zh19, 2005Ch71, 1996Re10
Q-value: Δ(Q(β-))=650, Δ(S(n))=100 (syst, 2017Wa10)
Q-value: Q(2n)=2080 870, Q(β-n)=17990 640 (syst, 2017Wa10)