ADOPTED LEVELS: NOT OBSERVED for 59Ga
Author: M. Shamsuzzoha Basunia | Citation: Nucl. Data Sheets 151, 1 (2018) | Cutoff date: 1-Apr-2018
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-17890 keV SY | S(n)= 18290 keV SY | S(p)= -1250 keV SY | Q(α)= -4550 keV SY | ||
| Reference: 2017WA10 |
| E(level) (keV) | T1/2(level) |
| 0.0? | < 43 ns % p = ? |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | < 43 ns % p = ? | Proton decay is expected to be the primary mode since S(p)=-1250 180 (2017Wa10). |
No significant change from the ENSDF update by B. Singh (23-DEC-2015), except notes from 2016Go26.
2016Go26: From 59|>decay energy spectrum (Fig. 3(a)), authors note that the pronounced structure at 6500 keV (appears to be at 6000 keV) could originate from a β2p branch via the isobaric analogue state in 59≈>, however, not confirmed.
2005St29 (also 2005St34): 59Ga isotope searched in fragmentation of 78Kr34+ beam in a 9Be target at E=140 MeV/nucleon. Reaction products selected according to their momentum/charge ratio using the A1900 spectrometer of the National Superconducting Cyclotron Laboratory (NSCL) at MSU. Measured fragments, tof and energy losses using timing scintillator (SCI), a position-sensitive parallel-plate avalanche counter (PPAC) and three silicon detectors (PIN). Half-life estimated from comparison of upper limit of experimental production yield with expected production yield from theoretical calculations
No events could be assigned to 59Ga, implying that 59Ga is most likely unbound towards proton emission.
Q-value: Estimated uncertainties (2017Wa10): 430 for Q(β-), 350 for S(n), 180 for S(p), 230 for Q(α)
Q-value: S(2n)=34893 434, S(2p)=1029 170, Q(εp)=10619 170 (syst,2017Wa10)