ADOPTED LEVELS, GAMMAS for 31Si
Authors: Jun Chen and Balraj Singh | Citation: Nucl. Data Sheets 184, 29 (2022) | Cutoff date: 24-Jun-2022
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=1491.51 keV 4 | S(n)= 6587.39 keV 4 | S(p)= 14373.9 keV 19 | Q(α)= -10787.4 keV 1 | ||
Reference: 2021WA16 |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0.0 | A CDEF HIJ L | 3/2+ | 157.24 m 20 % β- = 100 | |||||
752.23 3 | A CDEF HIJKL | 1/2+ | 0.53 ps 12 | 752.22 3 | 100 | [M1] | 0.0 | 3/2+ |
1694.91 4 | A CDEF HIJK | 5/2+ | 0.57 ps 15 | 942.8 4 1694.87 5 | 1.10 25 100.0 21 | [E2] M1+E2 | 752.23 0.0 | 1/2+ 3/2+ |
2316.86 9 | A C EF HIJKL | 3/2+ | 38 fs 17 | 622.07 20 1564.39 30 2316.78 14 | 13.9 10 23.8 22 100.0 25 | [M1] [E2] M1+E2 | 1694.91 752.23 0.0 | 5/2+ 1/2+ 3/2+ |
2788.09 6 | A C EF HIJ | 5/2+ | 14 fs 14 | 472.7? 1095.2? 2037.5 2787.90 12 | <4.2 <4.2 3.5 12 100.0 21 | [E2] M1+E2 | 2316.86 1694.91 752.23 0.0 | 3/2+ 5/2+ 1/2+ 3/2+ |
3133.11 23 | CDE HIJK | 7/2- | 0.37 ps 8 | 345.3 5 1438.5 3 | 0.57 14 100 4 | [E1] (E1) | 2788.09 1694.91 | 5/2+ 5/2+ |
3532.92 3 | CDEF HIJK | 3/2- | < 10 fs | 401.1? 745.1 9 1216.0 5 ? 1837.92 5 2780.56 3 3532.74 8 | <3.3 0.042 14 <0.070 3.05 17 100.0 34 2.48 14 | (E1(+M2)) | 3133.11 2788.09 2316.86 1694.91 752.23 0.0 | 7/2- 5/2+ 3/2+ 5/2+ 1/2+ 3/2+ |
3873.6 7 | C E H | (7/2+) | 1086.0 20 2179.2 15 3874.2 15 | <1.52 100 8 97 8 | 2788.09 1694.91 0.0 | 5/2+ 5/2+ 3/2+ | ||
4261.0 15 | C E H | 3/2+,5/2+ | 3508.6 15 | 100 | 752.23 | 1/2+ | ||
4382.38 3 | C EF HI K | 3/2- | 849.45 15 1594.30 6 2065.6 6 2687.35 8 3629.90 4 4382.04 14 | 5.4 6 12.7 8 1.5 4 19.8 20 100 4 22.5 17 | 3532.92 2788.09 2316.86 1694.91 752.23 0.0 | 3/2- 5/2+ 3/2+ 5/2+ 1/2+ 3/2+ | ||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
4690.5 16 | E H | |||||||
4719.1 3 | C E H K | 1/2+ | 3964 2 | 100 | 752.23 | 1/2+ | ||
4943.5 17 | C E H | 2155 2 3249 3 | 91 10 100 10 | 2788.09 1694.91 | 5/2+ 5/2+ | |||
4967.5 9 | C E H | 1093.7 8 2180 2 3274 3 | 92 8 100 53 34 8 | 3873.6 2788.09 1694.91 | (7/2+) 5/2+ 5/2+ | |||
4997.1 10 | C H L | 1124.2 15 1864.1 15 | 13 5 100 10 | 3873.6 3133.11 | (7/2+) 7/2- | |||
5281.37 4 | C EF H K | (1/2)- | 898.6 7 1748.38 6 2493.2 10 ? 2964.26 18 3586.2 10 ? 4528.77 5 5280.9 6 | 0.45 13 8.7 5 <0.51 4.6 5 <0.64 100.0 32 1.53 26 | 4382.38 3532.92 2788.09 2316.86 1694.91 752.23 0.0 | 3/2- 3/2- 5/2+ 3/2+ 5/2+ 1/2+ 3/2+ | ||
5311.1 15 | C E H | 2177.9 15 | 100 | 3133.11 | 7/2- | |||
5442.9 13 | C E H | 5/2-,7/2- | 2654.6 15 3126.0 25 | 100 16 <15.6 | 2788.09 2316.86 | 5/2+ 3/2+ | ||
5451 3 | C E | 3756 3 | 100 | 1694.91 | 5/2+ | |||
5594 10 | E | |||||||
5600.2 20 | C E H | 3905 2 | 100 | 1694.91 | 5/2+ | |||
5610.9 14 | C E | 2478.0 15 | 100 | 3133.11 | 7/2- | |||
5656.2 20 | C E H | 3961 2 | 100 | 1694.91 | 5/2+ | |||
5676.9 15 | C E H | 2888.7 15 | 100 | 2788.09 | 5/2+ | |||
5730 10 | E | |||||||
5791.2 20 | C | 3003 2 | 100 | 2788.09 | 5/2+ | |||
5818 10 | E H | (1/2+) | ||||||
5836 3 | C | 4141.2 25 | 100 | 1694.91 | 5/2+ | |||
5856 3 | C E | 3539 3 | 100 | 2316.86 | 3/2+ | |||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
5873.15 7 | EF H | 1/2-,3/2- | 5872.37 18 | 100 | 0.0 | 3/2+ | ||
5957.92 18 | EF H | (1/2-,3/2,5/2+) | 3640.2 9 5956.9 8 | 33 17 100 25 | 2316.86 0.0 | 3/2+ 3/2+ | ||
5984.2 19 | C E H | (3/2+,5/2+) | 2111 2 4287 4 | 62 23 100 23 | 3873.6 1694.91 | (7/2+) 5/2+ | ||
6071.9 10 | E H | 3/2+,5/2+ | ||||||
6106 1 | E H | 5/2-,7/2- | ||||||
6250.3 20 | C E H | 3/2+,5/2+ | 4555 2 | 100 | 1694.91 | 5/2+ | ||
6285 10 | H | |||||||
6350 4 | E H | |||||||
6418.3 20 | C H | (5/2-,7/2-) | 2548.0 25 4718 3 | 100 43 43 14 | 3873.6 1694.91 | (7/2+) 5/2+ | ||
6450 10 | E | |||||||
6461.4 10 | E H | (3/2+,5/2+) | ||||||
6473 4 | C E | 4156 4 | 100 | 2316.86 | 3/2+ | |||
6490.9 13 | H | |||||||
6584.3 21 | C E H | 5/2-,7/2- | 3796 3 4889 3 | 38 25 100 25 | 2788.09 1694.91 | 5/2+ 5/2+ | ||
6587.40 3 S | F | 1/2+ | 629.43 19 714.22 6 1305.99 4 2204.95 3 3054.33 3 3798.2 8 4270.1? 4892.1? 5834.2 6 6586.71 13 | 0.29 4 1.28 8 25.0 8 18.7 7 100.0 32 0.19 6 <0.096 <0.137 0.34 6 2.16 19 | 5957.92 5873.15 5281.37 4382.38 3532.92 2788.09 2316.86 1694.91 752.23 0.0 | (1/2-,3/2,5/2+) 1/2-,3/2- (1/2)- 3/2- 3/2- 5/2+ 3/2+ 5/2+ 1/2+ 3/2+ | ||
6592.22 3 | G | 1/2- | 1.90 eV 7 | |||||
6602.06 6 | GH | |||||||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
6636.1 16 | H | |||||||
6648.8 | G | |||||||
6661.7 14 | C E H | 2787.7 35 3873.7 22 4966.2 22 | 40 20 20 13 100 20 | 3873.6 2788.09 1694.91 | (7/2+) 5/2+ 5/2+ | |||
6765.1 8 | G | 1/2+ | 11.00 keV 30 | |||||
6771.8 4 | GH | [3/2](+) | ||||||
6792.9 12 | C H | 1796.2 10 3658 2 | 40 33 100 67 | 4997.1 3133.11 | 7/2- | |||
6815.0 4 | E GH | 3/2+,5/2+ | ||||||
6876.8 14 | E H | |||||||
6880.6 3 | E G | 3/2- | 0.260 keV 20 | |||||
6887 3 | C | 3016 4 5189 4 | 100 57 71 29 | 3873.6 1694.91 | (7/2+) 5/2+ | |||
6915.5 6 | H | 3/2+,5/2+ | ||||||
6954.2 11 | H | 3/2+,5/2+ | ||||||
6987.4 4 | G | 1/2- | 1.31 keV 25 | |||||
7012.2 11 | H | (1/2-,3/2-) | ||||||
7034.0 18 | C | 2066.4 15 | 100 | 4967.5 | ||||
7111 3 | C | 4794 3 | 100 | 2316.86 | 3/2+ | |||
7164 10 | H | (3/2+,5/2+) | ||||||
7207 2 | H | |||||||
7212.2 6 | G | 3/2+,5/2+ | ||||||
7225.7 16 | C | 1615.0 12 4091 3 | 100 64 46 27 | 5610.9 3133.11 | 7/2- | |||
7269.7 7 | GH | [3/2+,5/2+] | ||||||
7309.1 7 | GH | 3/2- | ||||||
7359.1 7 | G | [1/2-] | 0.86 keV 13 | |||||
7369.3 8 | GH | [1/2-] | 0.52 keV 10 | |||||
7372.6 8 | G | [1/2-] | 0.60 keV 12 | |||||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
7405.2 8 | GH | 3/2- | 20.8 keV 8 | |||||
7409.1 17 | H | |||||||
7438.3 4 | GH | 3/2+,5/2+ | ||||||
7484 3 | C H | 2173 2 | 100 | 5311.1 | ||||
7536.0 10 | G | 1/2- | 6.0 keV 10 | |||||
7544 3 | C | 4756 3 | 100 | 2788.09 | 5/2+ | |||
7564 10 | H | (3/2+,5/2,7/2-) | ||||||
7582 3 | C | 3708 3 | 100 | 3873.6 | (7/2+) | |||
7642 10 | H | (3/2+,5/2,7/2-) | ||||||
7718 10 | H | |||||||
7732.1 16 | G | 1/2+ | 7.50 keV 50 | |||||
7766.3 12 | GH | 3/2+,5/2+ | 5.00 keV 50 | |||||
7822.1 12 | GH | 1/2- | 7.9 keV 13 | |||||
7848.5 13 | G | [3/2+,5/2+] | 4.2 keV 10 | |||||
7856.7 13 | G | [3/2-] | 5.0 keV 16 | |||||
7883.1 13 | G | 1/2- | 9.0 keV 30 | |||||
7900.6 13 | G | 3/2- | 34.4 keV 34 | |||||
7904.6 8 | H | 5/2-,7/2- | ||||||
7927.3 13 | G | 1/2- | 5.8 keV 20 | |||||
7944.2 14 | G | [3/2+,5/2+] | ||||||
7954.9 14 | G | [3/2-] | 5.40 keV 12 | |||||
7991 4 | H | 5/2-,7/2- | ||||||
8016.6 16 | H | 5/2-,7/2- | ||||||
8034.9 12 | H | 5/2-,7/2- | ||||||
8071 3 | H | 5/2-,7/2- | ||||||
8115.9 13 | H | 5/2-,7/2- | ||||||
8140 14 | H | 5/2-,7/2- | ||||||
8165.2 15 | H | 5/2-,7/2- | ||||||
8220 14 | H | |||||||
8240 14 | H | (5/2-,7/2-) | ||||||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
8359 3 | C H | 5/2-,7/2- | 3048 2 | 100 | 5311.1 | |||
8389 4 | C | 4515 4 | 100 | 3873.6 | (7/2+) | |||
8570 14 | H | 3/2+,5/2+ | ||||||
8605 3 | H | 3/2+,5/2+ | ||||||
8648 3 | H | |||||||
8710 14 | H | (5/2-,7/2-) | ||||||
8780 14 | H | (3/2+,5/2+) | ||||||
8830 14 | H | (1/2-,3/2-) | ||||||
8850 14 | H | |||||||
8926 3 | C H | (1/2-,3/2-) | 3615 2 | 100 | 5311.1 | |||
8967 7 | H | (1/2-,3/2-) | ||||||
9217 3 | C H | (3/2+,5/2+) | 4249 3 | 100 | 4967.5 | |||
9324 3 | C | 4356 3 | 100 | 4967.5 | ||||
9380 14 | H |
E(level): From a least-squares fit to γ-ray energies for levels connected with γ transitions assuming ΔEγ=0.5 keV where not given, and from transfer reactions for other levels, unless otherwise noted.
Jπ(level): In particle-transfer reactions, target Jπ=0+ for (d,p) and (t,d) reactions and 1/2+ for (t,p) reaction
T1/2(level): For low-lying excited states, values are from DSAM in (d,pγ); for resonances, Γ data are from 30Si(n,γ),(n,n):resonances
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Mixing Ratio | Conversion Coefficient | Additional Data |
752.23 | 1/2+ | 0.53 ps 12 | 752.22 3 | [M1] | B(M1)(W.u.)=0.098 +28-18 | ||
1694.91 | 5/2+ | 0.57 ps 15 | 942.8 4 | [E2] | B(E2)(W.u.)=2.5 +11-7 | ||
5/2+ | 0.57 ps 15 | 1694.87 5 | M1+E2 | +4.4 10 | 0.0001785 | B(E2)(W.u.)=11.5 +40-2, B(M1)(W.u.)=0.00039 +32-14, α=0.0001785 29, α(K)=9.35E-6 14, α(L)=6.67E-7 10, α(M)=4.40E-8 6 | |
2316.86 | 3/2+ | 38 fs 17 | 622.07 20 | [M1] | B(M1)(W.u.)=0.24 +17-8 | ||
3/2+ | 38 fs 17 | 1564.39 30 | [E2] | 0.0001260 | B(E2)(W.u.)=47 +34-15, α=0.0001260 18, α(K)=1.103E-5 15, α(L)=7.88E-7 11, α(M)=5.19E-8 7 | ||
3/2+ | 38 fs 17 | 2316.78 14 | M1+E2 | +0.41 22 | 0.000395 | B(E2)(W.u.)=4 +6-3, B(M1)(W.u.)=0.029 +21-10, α=0.000395 14, α(K)=4.94E-6 9, α(L)=3.53E-7 7, α(M)=2.32E-8 4 | |
2788.09 | 5/2+ | 14 fs 14 | 2037.5 | [E2] | 0.000340 | B(E2)(W.u.)>2, α=0.000340 5, α(K)=6.66E-6 9, α(L)=4.76E-7 7, α(M)=3.13E-8 4 | |
5/2+ | 14 fs 14 | 2787.90 12 | M1+E2 | +0.20 5 | 0.000582 | B(E2)(W.u.)=1.5 +19-10, B(M1)(W.u.)=0.06 +8-4, α=0.000582 8, α(K)=3.68E-6 5, α(L)=2.63E-7 4, α(M)=1.732E-8 24 | |
3133.11 | 7/2- | 0.37 ps 8 | 345.3 5 | [E1] | B(E1)(W.u.)=0.00025 +10-7 | ||
7/2- | 0.37 ps 8 | 1438.5 3 | (E1) | 0.0002278 | B(E1)(W.u.)=0.00062 +17-11, α=0.0002278 32, α(K)=6.92E-6 10, α(L)=4.94E-7 7, α(M)=3.25E-8 5 | ||
3532.92 | 3/2- | < 10 fs | 2780.56 3 | (E1(+M2)) | +0.015 40 | 1.13×10-3 | α=1.13×10-3 2, α(K)=2.66E-6 4, α(L)=1.900E-7 27, α(M)=1.252E-8 18 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0.0 | 3/2+ | 157.24 m 20 % β- = 100 | Adopted neutron stripping spectroscopic factor=0.75 9 (1977En02). |
752.23 | 1/2+ | 0.53 ps 12 | Adopted neutron stripping spectroscopic factor S=0.46 21 (1977En02). |
1694.91 | 5/2+ | 0.57 ps 15 | Adopted neutron stripping spectroscopic factor S=0.04 2 (1977En02). |
2316.86 | 3/2+ | 38 fs 17 | Adopted neutron stripping spectroscopic factor S=0.06 2 (1977En02). |
2788.09 | 5/2+ | 14 fs 14 | XREF: E(2799). |
3133.11 | 7/2- | 0.37 ps 8 | Adopted neutron stripping spectroscopic factor S=0.71 13 (1977En02). |
3532.92 | 3/2- | < 10 fs | Adopted neutron stripping spectroscopic factor S=0.52 9 (1977En02). |
4382.38 | 3/2- | Adopted neutron stripping spectroscopic factor S=0.15 4 (1977En02). | |
4943.5 | XREF: E(4940)H(4931). | ||
4967.5 | XREF: E(4964)H(4963). | ||
4997.1 | XREF: H(4992)L(5000). | ||
5600.2 | XREF: H(5604). | ||
5656.2 | XREF: E(5655)H(5647). | ||
5676.9 | XREF: E(5675)H(5678). | ||
6250.3 | 3/2+,5/2+ | XREF: E(6248)H(6241). | |
6418.3 | (5/2-,7/2-) | XREF: H(6415). | |
6584.3 | 5/2-,7/2- | XREF: E(6576). | |
6592.22 | 1/2- | 1.90 eV 7 | Jπ(level): Adopted from the evaluation of neutron resonances (2018MuZY), with the assignments based on R-matrix analysis except for those in square brackets which are assumed assignments in 2018MuZY based on theoretical predictions. |
6815.0 | 3/2+,5/2+ | XREF: E(6810). | |
6880.6 | 3/2- | 0.260 keV 20 | Jπ(level): Adopted from the evaluation of neutron resonances (2018MuZY), with the assignments based on R-matrix analysis except for those in square brackets which are assumed assignments in 2018MuZY based on theoretical predictions. |
6987.4 | 1/2- | 1.31 keV 25 | Jπ(level): Adopted from the evaluation of neutron resonances (2018MuZY), with the assignments based on R-matrix analysis except for those in square brackets which are assumed assignments in 2018MuZY based on theoretical predictions. |
7212.2 | 3/2+,5/2+ | Jπ(level): Adopted from the evaluation of neutron resonances (2018MuZY), with the assignments based on R-matrix analysis except for those in square brackets which are assumed assignments in 2018MuZY based on theoretical predictions. | |
7269.7 | [3/2+,5/2+] | Jπ(level): Adopted from the evaluation of neutron resonances (2018MuZY), with the assignments based on R-matrix analysis except for those in square brackets which are assumed assignments in 2018MuZY based on theoretical predictions. | |
7309.1 | 3/2- | Jπ(level): Adopted from the evaluation of neutron resonances (2018MuZY), with the assignments based on R-matrix analysis except for those in square brackets which are assumed assignments in 2018MuZY based on theoretical predictions. | |
7359.1 | [1/2-] | 0.86 keV 13 | Jπ(level): Adopted from the evaluation of neutron resonances (2018MuZY), with the assignments based on R-matrix analysis except for those in square brackets which are assumed assignments in 2018MuZY based on theoretical predictions. |
E(level) | Jπ(level) | T1/2(level) | Comments |
7369.3 | [1/2-] | 0.52 keV 10 | XREF: H(7365). Jπ(level): Adopted from the evaluation of neutron resonances (2018MuZY), with the assignments based on R-matrix analysis except for those in square brackets which are assumed assignments in 2018MuZY based on theoretical predictions. |
7372.6 | [1/2-] | 0.60 keV 12 | Jπ(level): Adopted from the evaluation of neutron resonances (2018MuZY), with the assignments based on R-matrix analysis except for those in square brackets which are assumed assignments in 2018MuZY based on theoretical predictions. |
7405.2 | 3/2- | 20.8 keV 8 | XREF: H(7401). Jπ(level): Adopted from the evaluation of neutron resonances (2018MuZY), with the assignments based on R-matrix analysis except for those in square brackets which are assumed assignments in 2018MuZY based on theoretical predictions. |
7438.3 | 3/2+,5/2+ | Jπ(level): Adopted from the evaluation of neutron resonances (2018MuZY), with the assignments based on R-matrix analysis except for those in square brackets which are assumed assignments in 2018MuZY based on theoretical predictions. | |
7484 | XREF: H(7483). | ||
7536.0 | 1/2- | 6.0 keV 10 | Jπ(level): Adopted from the evaluation of neutron resonances (2018MuZY), with the assignments based on R-matrix analysis except for those in square brackets which are assumed assignments in 2018MuZY based on theoretical predictions. |
7766.3 | 3/2+,5/2+ | 5.00 keV 50 | Jπ(level): Adopted from the evaluation of neutron resonances (2018MuZY), with the assignments based on R-matrix analysis except for those in square brackets which are assumed assignments in 2018MuZY based on theoretical predictions. |
7822.1 | 1/2- | 7.9 keV 13 | Jπ(level): Adopted from the evaluation of neutron resonances (2018MuZY), with the assignments based on R-matrix analysis except for those in square brackets which are assumed assignments in 2018MuZY based on theoretical predictions. |
7848.5 | [3/2+,5/2+] | 4.2 keV 10 | Jπ(level): Adopted from the evaluation of neutron resonances (2018MuZY), with the assignments based on R-matrix analysis except for those in square brackets which are assumed assignments in 2018MuZY based on theoretical predictions. |
7856.7 | [3/2-] | 5.0 keV 16 | Jπ(level): Adopted from the evaluation of neutron resonances (2018MuZY), with the assignments based on R-matrix analysis except for those in square brackets which are assumed assignments in 2018MuZY based on theoretical predictions. |
7883.1 | 1/2- | 9.0 keV 30 | Jπ(level): Adopted from the evaluation of neutron resonances (2018MuZY), with the assignments based on R-matrix analysis except for those in square brackets which are assumed assignments in 2018MuZY based on theoretical predictions. |
7900.6 | 3/2- | 34.4 keV 34 | Jπ(level): Adopted from the evaluation of neutron resonances (2018MuZY), with the assignments based on R-matrix analysis except for those in square brackets which are assumed assignments in 2018MuZY based on theoretical predictions. |
7927.3 | 1/2- | 5.8 keV 20 | Jπ(level): Adopted from the evaluation of neutron resonances (2018MuZY), with the assignments based on R-matrix analysis except for those in square brackets which are assumed assignments in 2018MuZY based on theoretical predictions. |
7944.2 | [3/2+,5/2+] | Jπ(level): Adopted from the evaluation of neutron resonances (2018MuZY), with the assignments based on R-matrix analysis except for those in square brackets which are assumed assignments in 2018MuZY based on theoretical predictions. | |
7954.9 | [3/2-] | 5.40 keV 12 | Jπ(level): Adopted from the evaluation of neutron resonances (2018MuZY), with the assignments based on R-matrix analysis except for those in square brackets which are assumed assignments in 2018MuZY based on theoretical predictions. |
8926 | (1/2-,3/2-) | XREF: H(8920). | |
9217 | (3/2+,5/2+) | XREF: H(9230). |
E(level) | E(gamma) | Comments |
752.23 | 752.22 | E(γ): others: 752.23 30 from 31Al β- decay and 752.2 2 from (18O,αnγ) |
1694.91 | 942.8 | E(γ): weighted average of 942.6 4 from (18O,αnγ) and 943.2 7 from (n,γ) E=thermal I(γ): weighted average of 1.2 4 from (18O,αnγ), 1.01 25 from (n,γ) E=thermal, and 4.2 21 from (d,pγ) | 1694.87 | E(γ): others: 1694.73 30 from 31Al β- decay and 1695.0 3 from (18O,αnγ) I(γ): from (d,pγ). Other: 100 5 from (n,γ) E=thermal |
2316.86 | 622.07 | E(γ): weighted average of 621.81 30 from 31Al β- decay and 622.19 20 from (n,γ) E=thermal. Other: 621.5 15 from (18O,αnγ) I(γ): weighted average of 13.6 10 (1973Go22) from 31Al β- decay and 18 4 from (n,γ) E=thermal. Others: 17 11 from (18O,αnγ) and 14 8 from (d,pγ) | 1564.39 | E(γ): weighted average of 1564.49 30 from 31Al β- decay and 1564.2 4 from (n,γ) E=thermal. Other: 1564.6 20 from (18O,αnγ) I(γ): from 1973Go22 in 31Al β- decay (644 ms). Others: 22 11 from (18O,αnγ), 22 6 from (n,γ) E=thermal, and 25 8 from (d,pγ) | 2316.78 | E(γ): weighted average of 2316.64 40 from 31Al β- decay and 2316.80 14 from (n,γ) E=thermal. Other: 2315.7 20 from (18O,αnγ) I(γ): from 1973Go22 in 31Al β- decay. Others: 100 17 from (18O,αnγ), 100 8 from (n,γ) E=thermal, and 100 8 from (d,pγ) |
2788.09 | 472.7 | E(γ): From (d,pγ) I(γ): From (d,pγ) | 1095.2 | E(γ): From (d,pγ) I(γ): From (d,pγ) | 2037.5 | E(γ): other: 2037.7 30 from (18O,αnγ). From (d,pγ) I(γ): weighted average of 2.9 12 from (18O,αnγ) and 5.3 21 from (d,pγ) | 2787.90 | E(γ): others: 2787.6 8 from 31Al β- decay, 2788.3 12 from (18O,αnγ), 2790.1 from (d,pγ) I(γ): from (d,pγ). Other: 100 18 from (18O,αnγ) |
3133.11 | 345.3 | E(γ): From (18O,αnγ) I(γ): other: <3.0 from (d,pγ). From (18O,αnγ) | 1438.5 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) M(γ): D+Q with δ=-0.11 10 from (d,pγ); E1+M2 from Δπ, where parity assignments of connecting levels are uniquely established from independent arguments; M2 component not allowed by RUL |
3532.92 | 401.1 | E(γ): From (d,pγ) I(γ): From (d,pγ) | 745.1 | I(γ): other: <18 from (d,pγ) | 1837.92 | E(γ): other: 1839.6 with Iγ<3.3 from (d,pγ) | 2780.56 | E(γ): other: 2780.0 15 from (18O,αnγ) I(γ): other: 100 9 from (d,pγ) | 3532.74 | E(γ): other: 3534.4 with Iγ<1.1 from (d,pγ) |
3873.6 | 1086.0 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) | 2179.2 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) | 3874.2 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) |
4261.0 | 3508.6 | E(γ): From (18O,αnγ) |
4382.38 | 2687.35 | I(γ): weighted average of 20.4 12 from (n,γ) E=thermal and 13 4 from (d,pγ) | 3629.90 | E(γ): other: 3629.8 20 from (18O,αnγ) I(γ): other: 100 11 from (d,pγ) | 4382.04 | I(γ): weighted average of 22.8 17 from (n,γ) E=thermal and 18 7 from (d,pγ) |
4719.1 | 3964 | E(γ): From (18O,αnγ) |
E(level) | E(gamma) | Comments |
4943.5 | 2155 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) | 3249 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) |
4967.5 | 1093.7 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) | 2180 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) | 3274 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) |
4997.1 | 1124.2 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) | 1864.1 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) |
5281.37 | 4528.77 | E(γ): weighted average of 4526.4 20 from (18O,αnγ) and 4528.77 4 from (n,γ) E=thermal |
5311.1 | 2177.9 | E(γ): From (18O,αnγ) |
5442.9 | 2654.6 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) | 3126.0 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) |
5451 | 3756 | E(γ): From (18O,αnγ) |
5600.2 | 3905 | E(γ): From (18O,αnγ) |
5610.9 | 2478.0 | E(γ): From (18O,αnγ) |
5656.2 | 3961 | E(γ): From (18O,αnγ) |
5676.9 | 2888.7 | E(γ): From (18O,αnγ) |
5791.2 | 3003 | E(γ): From (18O,αnγ) |
5836 | 4141.2 | E(γ): From (18O,αnγ) |
5856 | 3539 | E(γ): From (18O,αnγ) |
5984.2 | 2111 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) | 4287 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) |
6418.3 | 2548.0 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) | 4718 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) |
6473 | 4156 | E(γ): From (18O,αnγ) |
6584.3 | 3796 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) | 4889 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) |
E(level) | E(gamma) | Comments |
6661.7 | 2787.7 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) | 3873.7 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) | 4966.2 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) |
6792.9 | 1796.2 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) | 3658 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) |
6887 | 3016 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) | 5189 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) |
7034.0 | 2066.4 | E(γ): From (18O,αnγ) |
7111 | 4794 | E(γ): From (18O,αnγ) |
7225.7 | 1615.0 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) | 4091 | E(γ): From (18O,αnγ) I(γ): From (18O,αnγ) |
7484 | 2173 | E(γ): From (18O,αnγ) |
7544 | 4756 | E(γ): From (18O,αnγ) |
7582 | 3708 | E(γ): From (18O,αnγ) |
8359 | 3048 | E(γ): From (18O,αnγ) |
8389 | 4515 | E(γ): From (18O,αnγ) |
8926 | 3615 | E(γ): From (18O,αnγ) |
9217 | 4249 | E(γ): From (18O,αnγ) |
9324 | 4356 | E(γ): From (18O,αnγ) |
Mass measurements: 2016Be19, 1997Ro26
Other measurements:
2012Zh06: 9Be(40Ar,X) E=57 MeV/nucleon, measured fragment yield, momentum distributions at HIRFL facility; deduced target dependence on production cross section
2015Mo17: 9Be(40Ar,X) E=95 MeV/nucleon, measured momentum distributions of fragments at RIKEN
2010Wa20: 208Pb(36S,X) E=215 MeV, measured fragment spectrum including 31Si using PRISMA-CLARA apparatus
Theoretical calculations: 40 primary references for structure and one for decay characteristics retrieved from the NSR database (www.nndc.bnl.gov/nsr/) are listed under ’document records’.
Q-value: Q(α)=-10787.36 6 (2021Wa16). Value is rounded by evaluators
Q-value: S(2n)=17196.59 4, S(2p)=26914.6 3 (2021Wa16)