ADOPTED LEVELS, GAMMAS for 86Tc
Authors: A. Negret and B. Singh | Citation: Nucl. Data Sheets 203, 283 (2025) | Cutoff date: 20-Jan-2025
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-11800 keV SY | S(n)= 13790 keV SY | S(p)= 1350 keV SY | Q(α)= -2190 keV SY | ||
| Reference: 2021WA16 |
| References: | |||
| A | 86Tc IT decay (1.10 μs) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | M(γ) | Final Levels | |
| 0 | A | (0+) | 55 ms 7 % ε = 100 % εp = ? | ||||
| 593 | A | (2+) | 593 | 0 | (0+) | ||
| 1174 | A | (3,4+) | 581 | 593 | (2+) | ||
| 1443 | A | (4+) | 269 850 | 1174 593 | (3,4+) (2+) | ||
| 1524 | A | (6+) | 1.10 µs 14 % IT = 100 | 81 | (E2) | 1443 | (4+) |
E(level): From Eγs.
Jπ(level): Comparison with shell-model predictions and systematics of odd-odd nuclei in this mass region (2008Ga04)
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 1524 | (6+) | 1.10 µs 14 % IT = 100 | 81 | (E2) | 2.67 | α=2.67 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 593 | (2+) | T=1 Jπ(level): Proximity of 595γ and 850γ with Eγ of yrast 2+ to 0+ and yrast 4+ to 2+, respectively, in 86Mo suggests (2000Ch07) possible analogs of yrast 2+ and 4+ (t=0) states in 86Mo. Similar pattern is observed in n=Z nuclides: 62Ga, 66As and 74Rb. | |
| 1443 | (4+) | T=1 Jπ(level): Proximity of 595γ and 850γ with Eγ of yrast 2+ to 0+ and yrast 4+ to 2+, respectively, in 86Mo suggests (2000Ch07) possible analogs of yrast 2+ and 4+ (t=0) states in 86Mo. Similar pattern is observed in n=Z nuclides: 62Ga, 66As and 74Rb. |
| E(level) | E(gamma) | Comments |
| 1524 | 81 | M(γ): from α(exp)=3.5 8 in 9Be(107Ag,Xγ) (2008Ga04) |
1992Ye04: 86Tc identified by in 58Ni(92Mo,X) E=70 MeV/nucleon reaction followed by measurement of fragment mass and charge using A1200 beam analysis device, tof=150 ns.
2001Ga24, 1998Lo17 (also 1999Lo07): 86Tc produced in Ni(92Mo,X) E=60 MeV/nucleon. Measured T1/2
2001Ki13, 2002Fa13: 86Tc produced in 9Be(112Sn,X) E=1 GeV/nucleon. The fragments were separated in FRS (fragment-recoil separator) and identified by measuring energy loss and time-of-flight. Measured T1/2
Theoretical structure calculations:
2019Na35: calculated pairing gaps, B(>), nuclear partition functions using shell model.
2012Sa50: calculated isospin mixing effects and isospin breaking (ISB) corrections for superallowed β transitions from 86Tc decay using density functional theory, and unitarity of the CKM matrix.
2003Ba19, 2002Ba58: calculated binding energy, level energies, and energy differences between t=0 and t=1 states using interacting boson model (IBM).
2001Li39: calculated B(M1), role of quasideuteron configurations using rotor-plus-particle model.
1997He24: calculated ground-state spin, T1/2 using shell model.
Other theoretical structure references: two references in the NSR database listed in this dataset as ’document’ records.
Q-value: Estimated uncertainties (2021Wa16): 500 for Q(β-) and S(n), 300 for S(p), 420 for Q(α)=420
Q-value: Q(ε)=12540 300, S(2n)=30010 500, S(2p)=4950 300, Q(εp)=7420 300 (syst, 2021Wa16).