ADOPTED LEVELS, GAMMAS for 46Cr
Author: Balraj Singh | Citation: ENSDF | Cutoff date: 20-FEB-2010
Author: S. -c. Wu | Citation: Nucl. Data Sheets 91, 1 (2000) | Cutoff date: 15-Jul-2000
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=-1.65×104 keV SY | S(n)= 1.803×104 keV 4 | S(p)= 4882 keV 22 | Q(α)= -6794 keV 20 | ||
Reference: 2012WA38 |
References: | |||
A | 46Mn ε decay (36.2 MS) | B | 47Fe εp decay (21.9 MS) |
C | 12C(36Ar,2nγ) | D | Coulomb Excitation |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0.0 | ABCD | 0+ | 0.26 s 6 % ε = 100 | |||||
892.16 10 | ABCD | 2+ | 5.4 ps 12 | 892.15 10 | 100 | [E2] | 0.0 | 0+ |
1987.1 3 | ABC | (4+) | 1094.9 3 | 100 | 892.16 | 2+ | ||
3196.5 6 | BC | (3-) | 2304.6 7 | 100 | D | 892.16 | 2+ | |
3226.9 6 | C | (6+) | 1239.9 5 | 100 | Q | 1987.1 | (4+) | |
3296 3 | C | 2404 3 | 100 | 892.16 | 2+ | |||
3494.3 7 | C | 1506.9 8 | 100 | 1987.1 | (4+) | |||
3593.7 7 | C | (4-) | 397.4 6 1605.3 15 | 100 13 75 19 | D | 3196.5 1987.1 | (3-) (4+) | |
3682.2 16 | C | 1695.0 15 | 100 | 1987.1 | (4+) | |||
3715.8 9 | C | 519.3 6 | 100 | 3196.5 | (3-) | |||
3778.1 12 | C | 581.7 11 1790 3 | 50 30 100 60 | 3196.5 1987.1 | (3-) (4+) | |||
3986.7 7 | C | (5-) | 393.0 15 492.3 7 760.3 10 790.1 8 | 12 7 60 11 43 13 100 22 | Q | 3593.7 3494.3 3226.9 3196.5 | (4-) (6+) (3-) | |
4235 3 | C | 2248 3 | 100 | 1987.1 | (4+) | |||
4305.5 12 | C | 711.8 9 | 100 | 3593.7 | (4-) | |||
4434.4 10 | C | 841.0 22 1207.4 9 | 22 13 100 17 | 3593.7 3226.9 | (4-) (6+) | |||
4817.4 8 | C | (8+) | 1590.4 6 | 100 | 3226.9 | (6+) | ||
4830 3 | C | (6-) | 1236 3 | 100 | 3593.7 | (4-) | ||
5117 4 | C | 1401 3 | 100 | 3715.8 | ||||
5346 3 | C | (7-) | 1359 3 | 100 | 3986.7 | (5-) | ||
6179.5 11 | C | (10+) | 1362.1 7 | 100 | 4817.4 | (8+) | ||
8162.5 15 ? | C | (12+) | 1983.0 10 ? | 100 | 6179.5 | (10+) | ||
9152 24 | A | (4+) |
E(level): From least-squares fit to Eγ’s
Jπ(level): As proposed in 2007Ga03 based on γ(θ) data for selected transitions observed in 12C(36Ar,2nγ) and mirror analogy with 46Ti and 46V
E(γ): From 12C(36Ar,2nγ), unless otherwise stated
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 1 - Yrast (T=1) band. | |||||||
0.0 | 0+ | 0.26 s 6 % ε = 100 | |||||
892.16 10 | 2+ | 5.4 ps 12 | 892.15 10 | 100 | [E2] | 0.0 | 0+ |
1987.1 3 | (4+) | 1094.9 3 | 100 | 892.16 | 2+ | ||
3226.9 6 | (6+) | 1239.9 5 | 100 | Q | 1987.1 | (4+) | |
4817.4 8 | (8+) | 1590.4 6 | 100 | 3226.9 | (6+) | ||
6179.5 11 | (10+) | 1362.1 7 | 100 | 4817.4 | (8+) | ||
8162.5 15 | (12+) | 1983.0 10 ? | 100 | 6179.5 | (10+) | ||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 2 - ΔJ=1 band based on (3-) | |||||||
3196.5 6 | (3-) | ||||||
3593.7 7 | (4-) | 397.4 6 1605.3 15 | 100 13 75 19 | D | 3196.5 1987.1 | (3-) (4+) | |
3986.7 7 | (5-) | 393.0 15 492.3 7 760.3 10 790.1 8 | 12 7 60 11 43 13 100 22 | Q | 3593.7 3494.3 3226.9 3196.5 | (4-) (6+) (3-) | |
4830 3 | (6-) | 1236 3 | 100 | 3593.7 | (4-) | ||
5346 3 | (7-) | 1359 3 | 100 | 3986.7 | (5-) |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Additional Data |
892.16 | 2+ | 5.4 ps 12 | 892.15 10 | [E2] | B(E2)(W.u.)=19 4 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0.0 | 0+ | 0.26 s 6 % ε = 100 | E(level): Yrast (T=1) band. |
892.16 | 2+ | 5.4 ps 12 | E(level): Yrast (T=1) band. |
1987.1 | (4+) | E(level): Yrast (T=1) band. | |
3196.5 | (3-) | E(level): ΔJ=1 band based on (3-). | |
3226.9 | (6+) | E(level): Yrast (T=1) band. | |
3593.7 | (4-) | E(level): ΔJ=1 band based on (3-). | |
3986.7 | (5-) | E(level): ΔJ=1 band based on (3-). | |
4817.4 | (8+) | E(level): Yrast (T=1) band. | |
4830 | (6-) | E(level): ΔJ=1 band based on (3-). | |
5346 | (7-) | E(level): ΔJ=1 band based on (3-). | |
6179.5 | (10+) | E(level): Yrast (T=1) band. | |
8162.5 | (12+) | E(level): Yrast (T=1) band. | |
9152 | (4+) | T=2 This state decays mainly by proton emission, but only 17.3% 12 branch is so far accounted in measurements of 2007Do17 and 1992Bo37. Energetically, two-proton and α-decay modes are also possible but these are expected to be small (2007Do17). |
Mass excess=-29.472 20 MeV (1992Bo37).
1972Zi02: identification and production of 46Cr in 32S(16O,2n) reaction
1991Wi13: 46Ti(π+,π-) E=450 MeV, measured cross section for double isobaric analog state using LAMPF facility and Large Acceptance spectrometer (las). Measured dσ/d|W=0.25 μb/sr 10 at 5|’
1990We05: 46Ti(π+,π-) E=33.9 MeV, measured cross section and σ(θ) for double isobaric analog state using LAMPF facility, Measured dσ/d|W=3.1 μb/sr 8 at 0|’ and 2.5 μb/sr 6 at 25.1|’
1994Bl10: 9Be(58Ni,X) E=650 MeV/nucleon, Fragment separator FRS at GSI facility, measured cross section for the production of 46Cr
2005On03: measured half-life of 46Cr g.s.
Structure calculations using shell model: 2008Ma44, 2007He32, 2002Ca48: levels, B(E2), mirror states, etc.
Q-value: Note: Current evaluation has used the following Q record $ -17100 syst 18.58×10350 4883 26 -6777 21 2009AuZZ,2003Au03
Q-value: Estimated uncertainty=110 for Q(β-) (2009AuZZ,2003Au03)
Q-value: Q(εp)=2243 20 (2009AuZZ,2003Au03)