ADOPTED LEVELS, GAMMAS for 178Hg
Authors: E. Achterberg, O.A. Capurro, G.V. Marti | Citation: Nucl. Data Sheets 110, 1473 (2009) | Cutoff date: 31-May-2008
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-1.152×104 keV SY | S(n)= 1.160×104 keV 8 | S(p)= 2060 keV 15 | Q(α)= 6577 keV 3 | ||
| Reference: 2012WA38 |
| References: | |||
| A | 182Pb α decay | B | (HI,xnγ) |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | AB | 0+ | 266.5 ms 24 % ε ≈ 30 % α ≈ 70 | |||||
| 558.00 20 | B | 2+ | 558.0 2 | | E2 | 0.0 | 0+ | |
| 1012.4 3 | B | 4+ | 454.4 2 | | E2 | 558.00 | 2+ | |
| 1346.9 4 | B | 6+ | 334.5 2 | | E2 | 1012.4 | 4+ | |
| 1357.8 6 | B | (3-) | 799.7 6 | | (E1) | 558.00 | 2+ | |
| 1447.2 6 | B | 3- | 889.1 6 | | E1 | 558.00 | 2+ | |
| 1743.5 5 | B | 8+ | 396.6 4 | | E2 | 1346.9 | 6+ | |
| 1851.4 8 | B | (4-) | 839.0 8 | | (E1) | 1012.4 | 4+ | |
| 1990.2 5 | B | 5- | 542.8 8 632.2 8 644.0 8 ? 978.2 6 | 31 9 59 10 <15 100 | E2 E2 (E1) E1 | 1447.2 1357.8 1346.9 1012.4 | 3- (3-) 6+ 4+ | |
| 2157.0 8 | B | (5-) | 799.1 8 | | (E2) | 1357.8 | (3-) | |
| 2201.2 7 | B | 10+ | 457.7 4 | | E2 | 1743.5 | 8+ | |
| 2215.3 8 | B | (6-) | 363.9 8 868.4 8 | 100 5 <50 | (E2) (E1) | 1851.4 1346.9 | (4-) 6+ | |
| 2388.6 6 | B | 7- | 231.5 8 398.4 4 644.9 8 1041.0 8 ? | 15 4 100 17 4 <7 | (E2) E2 E1 (E1) | 2157.0 1990.2 1743.5 1346.9 | (5-) 5- 8+ 6+ | |
| 2711.6 8 | B | 12+ | 510.4 4 | | E2 | 2201.2 | 10+ | |
| 2730.0 7 | B | 9- | 341.4 4 | | E2 | 2388.6 | 7- | |
| 3117.7 8 | B | 11- | 387.7 4 | | E2 | 2730.0 | 9- | |
| 3265.2 9 | B | 14+ | 553.6 4 | | E2 | 2711.6 | 12+ | |
| 3539.1 10 | B | 13- | 421.4 6 | | E2 | 3117.7 | 11- | |
| 3853.8 11 | B | 16+ | 588.6 6 | | E2 | 3265.2 | 14+ | |
| 3980.4 12 | B | (15-) | 441.3 6 | | (E2) | 3539.1 | 13- | |
| 4454.4 14 | B | (17-) | 474.0 8 | | (E2) | 3980.4 | (15-) | |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 4469.3 14 | B | (18+) | 615.5 8 | | (E2) | 3853.8 | 16+ | |
| 4971.9 17 | B | (19-) | 517.5 8 | | (E2) | 4454.4 | (17-) | |
| 5090.3 16 | B | (20+) | 621.0 8 | | (E2) | 4469.3 | (18+) | |
| 5534.5 18 | B | (21-) | 562.6 8 | | (E2) | 4971.9 | (19-) | |
E(level): The level energies are from a least-squares adjustment to the adopted γ-ray energies
Jπ(level): From (HI,xnγ)
E(γ): From (HI,xnγ). Energy uncertainties estimated by the evaluators, based on the range assumed in 2000Ko48, each depending on its experimental γ-ray intensity.
M(γ): Multipolarities from measured angular distributions and directional correlations (2000Ko48,1997Ca16) (see (HI,xnγ) dataset).
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 1 - π=+ gs band. | |||||||
| 0.0 | 0+ | 266.5 ms 24 % ε ≈ 30 % α ≈ 70 | |||||
| 558.00 20 | 2+ | 558.0 2 | | E2 | 0.0 | 0+ | |
| 1012.4 3 | 4+ | 454.4 2 | | E2 | 558.00 | 2+ | |
| 1346.9 4 | 6+ | 334.5 2 | | E2 | 1012.4 | 4+ | |
| 1743.5 5 | 8+ | 396.6 4 | | E2 | 1346.9 | 6+ | |
| 2201.2 7 | 10+ | 457.7 4 | | E2 | 1743.5 | 8+ | |
| 2711.6 8 | 12+ | 510.4 4 | | E2 | 2201.2 | 10+ | |
| 3265.2 9 | 14+ | 553.6 4 | | E2 | 2711.6 | 12+ | |
| 3853.8 11 | 16+ | 588.6 6 | | E2 | 3265.2 | 14+ | |
| 4469.3 14 | (18+) | 615.5 8 | | (E2) | 3853.8 | 16+ | |
| 5090.3 16 | (20+) | 621.0 8 | | (E2) | 4469.3 | (18+) | |
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 2 - π=+ band. | |||||||
| 2388.6 6 | 7- | ||||||
| 2730.0 7 | 9- | 341.4 4 | | E2 | 2388.6 | 7- | |
| 3117.7 8 | 11- | 387.7 4 | | E2 | 2730.0 | 9- | |
| 3539.1 10 | 13- | 421.4 6 | | E2 | 3117.7 | 11- | |
| 3980.4 12 | (15-) | 441.3 6 | | (E2) | 3539.1 | 13- | |
| 4454.4 14 | (17-) | 474.0 8 | | (E2) | 3980.4 | (15-) | |
| 4971.9 17 | (19-) | 517.5 8 | | (E2) | 4454.4 | (17-) | |
| 5534.5 18 | (21-) | 562.6 8 | | (E2) | 4971.9 | (19-) | |
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 558.00 | 2+ | 558.0 2 | E2 | 0.0208 | α=0.0208 | |
| 1012.4 | 4+ | 454.4 2 | E2 | 0.0341 | α=0.0341 | |
| 1346.9 | 6+ | 334.5 2 | E2 | 0.0775 | α=0.0775 | |
| 1357.8 | (3-) | 799.7 6 | (E1) | 0.00348 | α=0.00348 | |
| 1447.2 | 3- | 889.1 6 | E1 | 0.00286 | α=0.00286 | |
| 1743.5 | 8+ | 396.6 4 | E2 | 0.0485 | α=0.0485 | |
| 1851.4 | (4-) | 839.0 8 | (E1) | 0.00318 | α=0.00318 | |
| 1990.2 | 5- | 542.8 8 | E2 | 0.0221 | α=0.0221 | |
| 5- | 632.2 8 | E2 | 0.01564 | α=0.01564 | ||
| 5- | 644.0 8 | (E1) | 0.00530 | α=0.00530 | ||
| 5- | 978.2 6 | E1 | 0.00240 | α=0.00240 | ||
| 2157.0 | (5-) | 799.1 8 | (E2) | 0.00947 | α=0.00947 | |
| 2201.2 | 10+ | 457.7 4 | E2 | 0.0335 | α=0.0335 | |
| 2215.3 | (6-) | 363.9 8 | (E2) | 0.0612 | α=0.0612 10 | |
| (6-) | 868.4 8 | (E1) | 0.00298 | α=0.00298 | ||
| 2388.6 | 7- | 231.5 8 | (E2) | 0.239 | α=0.239 5 | |
| 7- | 398.4 4 | E2 | 0.0479 | α=0.0479 | ||
| 7- | 644.9 8 | E1 | 0.00529 | α=0.00529 | ||
| 7- | 1041.0 8 | (E1) | 0.00214 | α=0.00214 | ||
| 2711.6 | 12+ | 510.4 4 | E2 | 0.0256 | α=0.0256 | |
| 2730.0 | 9- | 341.4 4 | E2 | 0.0732 | α=0.0732 | |
| 3117.7 | 11- | 387.7 4 | E2 | 0.0515 | α=0.0515 | |
| 3265.2 | 14+ | 553.6 4 | E2 | 0.0211 | α=0.0211 | |
| 3539.1 | 13- | 421.4 6 | E2 | 0.0414 | α=0.0414 | |
| 3853.8 | 16+ | 588.6 6 | E2 | 0.0184 | α=0.0184 | |
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 3980.4 | (15-) | 441.3 6 | (E2) | 0.0367 | α=0.0367 | |
| 4454.4 | (17-) | 474.0 8 | (E2) | 0.0307 | α=0.0307 | |
| 4469.3 | (18+) | 615.5 8 | (E2) | 0.01660 | α=0.01660 | |
| 4971.9 | (19-) | 517.5 8 | (E2) | 0.0248 | α=0.0248 | |
| 5090.3 | (20+) | 621.0 8 | (E2) | 0.01627 | α=0.01627 | |
| 5534.5 | (21-) | 562.6 8 | (E2) | 0.0204 | α=0.0204 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | 0+ | 266.5 ms 24 % ε ≈ 30 % α ≈ 70 | This level decays to the 174Pt g.s. by an unhindered α transition, with Eα=6429 3 keV, weighted average of 6425 15 keV (1971Ha03), 6425 15 keV (1976HoZD), 6430 6 keV (1979Ha10), 6428 9 keV (1996Pa01), 6429 4 keV (2000Ko01), 6429 5 keV (2004GoZZ). E(level): This level decays to the 174Pt g.s. by an unhindered α transition, with Eα=6429 3 keV, weighted average of 6425 15 keV (1971Ha03), 6425 15 keV (1976HoZD), 6430 6 keV (1979Ha10), 6428 9 keV (1996Pa01), 6429 4 keV (2000Ko01), 6429 5 keV (2004GoZZ). π=+ gs band. |
| 558.00 | 2+ | E(level): π=+ gs band. | |
| 1012.4 | 4+ | E(level): π=+ gs band. | |
| 1346.9 | 6+ | E(level): π=+ gs band. | |
| 1743.5 | 8+ | E(level): π=+ gs band. | |
| 2201.2 | 10+ | E(level): π=+ gs band. | |
| 2388.6 | 7- | Band head for negative-parity band 2. E(level): Band head for negative-parity band 2. π=+ band. | |
| 2711.6 | 12+ | E(level): π=+ gs band. | |
| 2730.0 | 9- | E(level): π=+ band. | |
| 3117.7 | 11- | E(level): π=+ band. | |
| 3265.2 | 14+ | E(level): π=+ gs band. | |
| 3539.1 | 13- | E(level): π=+ band. | |
| 3853.8 | 16+ | E(level): π=+ gs band. | |
| 3980.4 | (15-) | E(level): π=+ band. | |
| 4454.4 | (17-) | E(level): π=+ band. | |
| 4469.3 | (18+) | E(level): π=+ gs band. | |
| 4971.9 | (19-) | E(level): π=+ band. | |
| 5090.3 | (20+) | E(level): π=+ gs band. | |
| 5534.5 | (21-) | E(level): π=+ band. |
Theory references:
1972Fa11, calculation of deformation energy surfaces
1987Be06, shape coexistence studies, PES calculations
1993Na05, low-spin shape coexistence, reflection asymmetric WS model
1994Pa29,1994Yo05,1996He02,1996Ta01, discussion of applicability of relativistic mean-field approach in studies of nuclear shapes, binding energies, deformation parameters.
Levels: Level scheme based on α-γ correlations, γγ coincidences, and intensity balances (2000Ko48,2000Ko01,1997Ca16)
Gammas: For relative γ-ray intensities, see (HI,xnγ) dataset
Q-value: Note: Current evaluation has used the following Q record -11560 syst 11610 80 2056 18 6577 5 2003Au03
Q-value: ΔQ(β)(est)=110 keV (2003Au03)
Q-value: Q(β+)=6010 60 keV (2003Au03)