ADOPTED LEVELS:UNOBSERVED for 85Tc
Authors: Balraj Singh and Jun Chen | Citation: Nucl. Data Sheets 116, 1 (2014) | Cutoff date: 31-Dec-2013
Full ENSDF file | Adopted Levels (PDF version)
| S(n)= 15020 keV CA | S(p)= -1180 keV SY | Q(α)= -1230 keV SY | |||
| Reference: 2012WA38,1997MO25 |
| E(level) (keV) | T1/2(level) |
| 0? | < 100 ns % p = ? |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | < 100 ns % p = ? | From structure calculations, 1999Ja02 predict ground state as π5/2[422] oblate state. Others: 3/2+ (predicted, 1997Mo25), 1/2- (systematics,2012Au07). |
1999Ja02: Search for 85Tc nuclide in fragmentation of 92Mo37+ beam at 60 MeV/nucleon with a Nickel target, LISE-3 spectrometer at GANIL, E-ΔE detector system, time-of-flight method.
Independent work at GSI by Wefers et al., GSI annual report 2001-1, page 10, also 2007WeZX preprint: fragmentation of 112Sn beam at 1 GeV/nucleon with a beryllium target, FRS spectrometer at GSI facility
No events were detected by 1999Ja02 or in the work at GSI which could be assigned to 85Tc, which implies that 85Tc is proton unbound.
85Tc, most likely, is unbound towards proton emission.
Q-value: S(n) from 1997Mo25; S(p) and Q(α) from 2012Wa38. Other: S(p)=-960 640 (1999Ja02)
Q-value: Estimated uncertainties (2012Wa38): ΔS(p)=ΔQ(α)=570
Q-value: Q(εp)=7700 500, S(2p)=2200 500 (syst,2012Wa38). S(2n)=29390 (theory,1997Mo25)