ADOPTED LEVELS, GAMMAS for 27Mg
Author: M. Shamsuzzoha Basunia | Citation: Nucl. Data Sheets 112, 1875 (2011) | Cutoff date: 30-Nov-2010
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=2610.13 keV 12 | S(n)= 6443.39 keV 4 | S(p)= 15015 keV 4 | Q(α)= -11857.5 keV 1 | ||
Reference: 2012WA38 |
References: | |||
A | 27Na β- decay | B | 9Be(28Mg,27MgG),9Be(50Ti,xγ) |
C | 25Mg(t,p) | D | 26Mg(n,γ) E=TH |
E | 26Mg(d,pγ) | F | 28Si(μ-,NUPG) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0.0 | ABCDEF | 1/2+ | 9.458 m 12 % β- = 100 | |||||
984.88 5 | ABCDEF | 3/2+ | 0.97 ps 24 | 984.88 8 | 100 | M1+E2 | 0.0 | 1/2+ |
1698.52 8 | ABCDEF | 5/2+ | 0.81 ps 17 | 713.7 1698.46 23 | <2.7 100 6 | E2 | 984.88 0.0 | 3/2+ 1/2+ |
1940.23 6 | ABCDEF | 5/2+ | 0.65 ps 14 | 241.6 4 955.42 7 1939.98 10 | 12 4 100 12 35 8 | M1+(E2) | 1698.52 984.88 0.0 | 5/2+ 3/2+ 1/2+ |
3109.73 21 | A EF | (7/2+) | 71 fs 18 | 1169.40 25 1411.5 2124.8 | 100 13 4 3 4 3 | (M1+E2) | 1940.23 1698.52 984.88 | 5/2+ 5/2+ 3/2+ |
3427.4 3 | A E | (5/2+,7/2+) | 69 fs 34 | 317.5 1486.9 1728.9 5 2442.3 5 | 3.4 17 5 3 64 9 100 12 | D+(Q) | 3109.73 1940.23 1698.52 984.88 | (7/2+) 5/2+ 5/2+ 3/2+ |
3476.34 7 | BCDE | 1/2+ | < 6.9 fs | 1777.5 2490.8 3476.19 9 | 1.0 10 2.0 10 100 13 | 1698.52 984.88 0.0 | 5/2+ 3/2+ 1/2+ | |
3491.34 16 | A DE | 3/2+,5/2+ | < 9.7 fs | 1792.8 3 2506.1 7 3490.8 5 | 30 9 100 18 98 36 | 1698.52 984.88 0.0 | 5/2+ 3/2+ 1/2+ | |
3561.54 4 | B DE | 3/2- | < 7 fs | 1862.93 10 2576.50 6 3561.31 4 | 2.00 20 6.5 11 100.0 11 | (E1) | 1698.52 984.88 0.0 | 5/2+ 3/2+ 1/2+ |
3760.9 6 | E | 5/2-,7/2- | 0.42 ps 7 | 2062.5 | 100 | D | 1698.52 | 5/2+ |
3787.27 9 | DE | 3/2+ | < 17 fs | 676.5 1846.95 18 2088.66 11 2801.3 3787.05 15 | 6.3 20 33 6 65 13 4.0 20 100 13 | 3109.73 1940.23 1698.52 984.88 0.0 | (7/2+) 5/2+ 5/2+ 3/2+ 1/2+ | |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
3884.6 4 | E | (5/2+,9/2+) | > 0.5 ps | 457 775 1944 2186 | 7 4 7 4 100 21 8.6 25 | 3427.4 3109.73 1940.23 1698.52 | (5/2+,7/2+) (7/2+) 5/2+ 5/2+ | |
4150.4 5 | A E | (3/2+,5/2+) | < 7 fs | 2209.8 2451.8 3165.2 | 28.6 20 75.5 20 100 4 | D+(Q) D+Q D+Q | 1940.23 1698.52 984.88 | 5/2+ 5/2+ 3/2+ |
4398.8 5 | E | (5/2+,9/2+) | 45 fs 24 | 514.2 971.3 1288.8 2700.3 | 15 5 32 7 98 15 100 15 | D+Q | 3884.6 3427.4 3109.73 1698.52 | (5/2+,9/2+) (5/2+,7/2+) (7/2+) 5/2+ |
4553.3 5 | A E | (3/2+,5/2+) | < 9 fs | 1443.4 2612.8 2854.9 3568.2 4552.8 | 10 4 100 19 19 8 48 13 15 4 | D+Q | 3109.73 1940.23 1698.52 984.88 0.0 | (7/2+) 5/2+ 5/2+ 3/2+ 1/2+ |
4776.6 5 | A E | (3/2,5/2,7/2)+ | < 24 fs | 892.1 1349.2 1666.7 9 2836.1 8 | 48 14 14 9 66 14 100 36 | 3884.6 3427.4 3109.73 1940.23 | (5/2+,9/2+) (5/2+,7/2+) (7/2+) 5/2+ | |
4828.17 5 | B DE | 1/2-,3/2- | < 7 fs | 1266.65 18 1336.80 20 1351.86 8 3843.01 8 4827.67 6 | 11.1 10 5.4 6 10.5 10 100 5 70 4 | 3561.54 3491.34 3476.34 984.88 0.0 | 3/2- 3/2+,5/2+ 1/2+ 3/2+ 1/2+ | |
4992.8 5 | A E | (5/2+) | < 7 fs | 1231.9 1565.4 1882.9 3052.3 4007.6 9 | 10 4 8 4 13 7 8 6 100 21 | 3760.9 3427.4 3109.73 1940.23 984.88 | 5/2-,7/2- (5/2+,7/2+) (7/2+) 5/2+ 3/2+ | |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
5028.84 24 | DE | 1/2+ | < 28 fs | 1467.3 5 1537 1552.8 7 4043.6 3 | 41 13 14 5 23 7 100 21 | 3561.54 3491.34 3476.34 984.88 | 3/2- 3/2+,5/2+ 1/2+ 3/2+ | |
5172.6 5 | C E | (3/2,5/2)+ | < 10 fs | 1022 1386 3474 4187 5172 | 11 4 22 7 100 20 38 7 51 9 | 4150.4 3787.27 1698.52 984.88 0.0 | (3/2+,5/2+) 3/2+ 5/2+ 3/2+ 1/2+ | |
5296.8 6 | C E | < 41 fs | 1412 1536 2187 3598 | 88 26 27 15 100 32 79 29 | 3884.6 3760.9 3109.73 1698.52 | (5/2+,9/2+) 5/2-,7/2- (7/2+) 5/2+ | ||
5373.0 5 | C E | (5/2-) | < 16 fs | 1612 1813 1881 3674 4387 | 24 9 44 11 18 7 100 22 36 13 | D+Q D+Q D+Q | 3760.9 3561.54 3491.34 1698.52 984.88 | 5/2-,7/2- 3/2- 3/2+,5/2+ 5/2+ 3/2+ |
5412.6 5 | C E | < 7 fs | 1528 1985 2303 3472 3714 | 11 7 7 4 15 4 85 20 100 24 | 3884.6 3427.4 3109.73 1940.23 1698.52 | (5/2+,9/2+) (5/2+,7/2+) (7/2+) 5/2+ 5/2+ | ||
5422.3 10 | E | 1/2-,3/2- | < 7 fs | 4437 | 100.0 | 984.88 | 3/2+ | |
5627.8 4 | C E | (3/2,5/2)+ | < 7 fs | 800 2152 3687 3929 4642 5627 | 2.6 6 12 5 71 17 43 12 10 5 100 14 | 4828.17 3476.34 1940.23 1698.52 984.88 0.0 | 1/2-,3/2- 1/2+ 5/2+ 5/2+ 3/2+ 1/2+ | |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
5749.7 6 | C E | 5/2 TO 9/2 | < 17 fs | 2640 3809 4051 | 100 26 58 26 42 14 | 3109.73 1940.23 1698.52 | (7/2+) 5/2+ 5/2+ | |
5764.9 10 | C E | (3/2,5/2)+ | < 17 fs | 4066 | 100 | 1698.52 | 5/2+ | |
5821.6 5 | C E | (3/2,5/2)+ | < 7 fs | 1671 2330 2394 2712 4123 4836 | 14 4 14 6 18 8 46 8 8 4 100 14 | 4150.4 3491.34 3427.4 3109.73 1698.52 984.88 | (3/2+,5/2+) 3/2+,5/2+ (5/2+,7/2+) (7/2+) 5/2+ 3/2+ | |
5829.9 8 | E | < 82 fs | 1431 2069 | 35 16 100 31 | 4398.8 3760.9 | (5/2+,9/2+) 5/2-,7/2- | ||
5906 7 | E | (1/2,3/2)- | ||||||
5925.81 23 | CDE | 34 fs 28 | 3985.5 6 4940.5 3 5924.9 4 | 49 11 40 9 100 21 | 1940.23 984.88 0.0 | 5/2+ 3/2+ 1/2+ | ||
6009 2 | C E | < 7 fs | ||||||
6084 2 | C E | |||||||
6125 3 | C E | |||||||
6161 2 | C E | |||||||
6312 5 | C E | |||||||
6336 3 | C E | |||||||
6380 3 | E | |||||||
6508 3 | C E | |||||||
6651 3 | C E | |||||||
6721 4 | C E | |||||||
6811 3 | C E | |||||||
6859 2 | C E | |||||||
6921 3 | C E | |||||||
6991 4 | C E | |||||||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
7013 5 | C E | |||||||
7147 2 | E | |||||||
7278 3 | E | |||||||
7505 3 | E | |||||||
7530 3 | E | |||||||
7690 3 | E | |||||||
7700 3 | E | |||||||
7859 4 | E | |||||||
7927 5 | E | |||||||
7976 4 | E |
E(level): Up to 5925 keV from a least-squares fit to γ-ray energies, ΔE=1 keV is assumed when not given. Many Adopted γ-rays depopulating up to 5925 keV level are experimental. Above this level, measured γ-ray energies were not available. Thus level energies quoted here are from (d,pγ). Please see comments in the γ-ray Table of the (d,pγ) dataset.
T1/2(level): From (d,pγ)
E(γ): From (d,pγ), except otherwise noted.
I(γ): Branching from (d,pγ) or (n,γ) (overall, the data from both reactions are in good agreement), except otherwise noted.
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Mixing Ratio | Additional Data |
984.88 | 3/2+ | 0.97 ps 24 | 984.88 8 | M1+E2 | +0.22 2 | B(E2)(W.u.)=6.0 19, B(M1)(W.u.)=0.023 6 |
1698.52 | 5/2+ | 0.81 ps 17 | 1698.46 23 | E2 | B(E2)(W.u.)=10.1 23 | |
1940.23 | 5/2+ | 0.65 ps 14 | 955.42 7 | M1+(E2) | -0.07 6 | B(E2)(W.u.)=0.8 +13-8, B(M1)(W.u.)=0.026 7 |
3109.73 | (7/2+) | 71 fs 18 | 1169.40 25 | (M1+E2) | -0.23 +19-6 | B(E2)(W.u.)=(4.×101 +6-4), B(M1)(W.u.)=(0.18 5) |
3427.4 | (5/2+,7/2+) | 69 fs 34 | 1728.9 5 | D+(Q) | +0.05 +3-8 | |
3561.54 | 3/2- | < 7 fs | 2576.50 6 | (E1) | B(E1)(W.u.)>0.00038 | |
4150.4 | (3/2+,5/2+) | < 7 fs | 2209.8 | D+(Q) | -0.4 +4-3 | |
(3/2+,5/2+) | < 7 fs | 2451.8 | D+Q | -0.23 +5-2 | ||
(3/2+,5/2+) | < 7 fs | 3165.2 | D+Q | +0.16 6 | ||
4398.8 | (5/2+,9/2+) | 45 fs 24 | 1288.8 | D+Q | -0.13 6 | |
4553.3 | (3/2+,5/2+) | < 9 fs | 2612.8 | D+Q | +0.42 19 | |
5373.0 | (5/2-) | < 16 fs | 1813 | D+Q | +0.4 +2-3 | |
(5/2-) | < 16 fs | 1881 | D+Q | +0.4 +5-3 | ||
(5/2-) | < 16 fs | 3674 | D+Q | -0.6 +5-3 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
1999Wa21: Fragmentation of 50Ti on 9Be, E=330 MeV/u, at GSI; secondary beam of 27Mg bombarded Pb and C targets; deduced excitation cross sections for the 1698 keV level of 27Mg are 43(9) mb and 5.4(15) mb for Pb and C targets, respectively.
Nuclear effective root-mean-square (rms) radius measurement: 1998Su07.
Q-value: Note: Current evaluation has used the following Q record 2610.09 116443.39 4 15015 4 -11857.4912 2011AuZZ,2003Au03