ADOPTED LEVELS, GAMMAS for 41Ar
Authors: C.D. Nesaraja, E.A. Mccutchan | Citation: Nucl. Data Sheets 133, 1 (2016) | Cutoff date: 30-Sep-2015
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=2492.0 keV 3 | S(n)= 6098.9 keV 3 | S(p)= 12800 keV 30 | Q(α)= -8596.0 keV 4 | ||
Reference: 2012WA38 |
References: | |||
A | 41Cl β- decay (38.4 S) | B | 40Ar(n,γ),(pol n,γ) E=THERMAL |
C | 40Ar(d,p),(pol d,p),2H(40Ar,p) | D | 40Ar(d,pγ),2H(40Ar,pγ) |
E | 40Ar(13C,12C) | F | 40Ar(n,γ) E=RES |
G | 208Pb(40Ar,xγ) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0 | ABCDEFG | 7/2- | 109.61 m 4 % β- = 100 | |||||
167.11 9 | ABCDEFG | 5/2- | 315 ps 15 | 167.1 1 | 100 | [M1] | 0 | 7/2- |
515.77 15 | ABCD FG | 3/2- | 0.26 ns 8 | 348.7 2 516.0 3 | 28 4 100 4 | [E2] | 167.11 0 | 5/2- 7/2- |
1033.94 16 | ABCD FG | 3/2+ | 5 ps +28-3 | 517.9 3 866.7 2 | 79 9 100 9 | [E1] [E1] | 515.77 167.11 | 3/2- 5/2- |
1353.71 11 | ABCDEFG | 3/2- | 0.40 ps 6 | 837.5 3 1186.6 1 1353.6 2 | 20 3 100 3 4 3 | 515.77 167.11 0 | 3/2- 5/2- 7/2- | |
1504.8 6 | G | (9/2-) | 1504.8 6 | 100 | 0 | 7/2- | ||
1629.7 3 | G | (11/2-) | 1629.7 3 | 100 | 0 | 7/2- | ||
1636 2 | C | (3/2-) | ||||||
1867.99 14 | A CD G | 1/2+ | ≤ 46 ps | 514.2 1 833.8 2 1353.3 3 | 100 11 54 11 60 11 | [E1] [E1] | 1353.71 1033.94 515.77 | 3/2- 3/2+ 3/2- |
1988 3 | C | |||||||
2321 10 | C | |||||||
2397.9 4 | BCD G | 1/2- | 0.12 ps 3 | 1044.3 4 1881.5 10 2229.5 20 | 100 7 47 7 7 3 | [E2] | 1353.71 515.77 167.11 | 3/2- 3/2- 5/2- |
2568 1 | C | |||||||
2701 3 | C | 1/2-,3/2- | ||||||
2733.1 6 | BCD | 3/2- | < 31 fs | 864 1380 2566.1 8 | <5.4 9 5 100 5 | 1867.99 1353.71 167.11 | 1/2+ 3/2- 5/2- | |
2891 1 | C | (9/2)+ | ||||||
2948.5 8 | BCD | 3/2- | < 62 fs | 1593? 2432.5 8 2781.8 15 | <8 58 100 | 1353.71 515.77 167.11 | 3/2- 3/2- 5/2- | |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
3009.8 10 | BCD | 3/2- | < 111 fs | 2842.6 10 | 100 | 167.11 | 5/2- | |
3122 10 | C | |||||||
3293 5 | C | 1/2-,3/2- | ||||||
3326.3 5 | BCD | 1/2- | < 17 fs | 1458 1972.7 12 2291.7 20 2810.6 8 3159 | 8.5 24 13.0 24 3.4 100.0 24 <9 | 1867.99 1353.71 1033.94 515.77 167.11 | 1/2+ 3/2- 3/2+ 3/2- 5/2- | |
3388 1 | C | (1/2)- | ||||||
3433 1 | C | 1/2- | ||||||
3485 10 | C | |||||||
3565 1 | C | |||||||
3590 1 | C | 3/2- | ||||||
3698 1 | C | |||||||
3734 10 | C | |||||||
3775 10 | C | |||||||
3799 1 | C | (1/2)- | ||||||
3847 5 | C | |||||||
3900 5 | C | |||||||
3968.1 7 | BCD | 1/2- | 21 fs 12 | 2614.4 8 3451.8 10 | 100 69 | 1353.71 515.77 | 3/2- 3/2- | |
4108 6 | C | |||||||
4123 1 | C | 3/2- | ||||||
4154 1 | C | 3/2- | ||||||
4251 10 | C | |||||||
4270.0 15 | BC | 3/2- | 4102.7 15 | 100 | 167.11 | 5/2- | ||
4295 1 | C | 1/2-,3/2- | ||||||
4370 10 | C | |||||||
4395 6 | C | |||||||
4404 1 | C | 3/2- | ||||||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
4447 6 | C | 1/2+ | ||||||
4473 1 | C | (1/2-,3/2+) | ||||||
4513 1 | C | (1/2)- | ||||||
4573 1 | C | 5/2+ | ||||||
4613 7 | C | 1/2+ | ||||||
4644 10 | C | |||||||
4670 1 | C | 5/2+ | ||||||
4683 10 | C | (5/2-) | ||||||
4722 10 | C | |||||||
4754 10 | C | |||||||
4816 8 | C | |||||||
4831 1 | C | (5/2-,9/2+) | ||||||
4900 10 | C | |||||||
4935 1 | C | 1/2- | ||||||
4970 1 | C | (5/2-,9/2+) | ||||||
5016 1 | C | 1/2-,3/2- | ||||||
5066 1 | C | 5/2- | ||||||
5115 10 | C | |||||||
5134 10 | C | |||||||
5153 1 | C | (9/2)+ | ||||||
5219 10 | C | |||||||
5244 10 | C | |||||||
5280 10 | C | |||||||
5296 1 | C | |||||||
5321 1 | C | (5/2)- | ||||||
5406 1 | C | 3/2-,7/2- | ||||||
5438 1 | C | 5/2- | ||||||
5486 1 | C | 7/2- | ||||||
5529 10 | C | |||||||
5573 10 | C | |||||||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
5618 1 | C | (5/2)- | ||||||
5675 10 | C | |||||||
5711 1 | C | (5/2-) | ||||||
5753 1 | C | (7/2-,9/2+) | ||||||
5789 1 | C | 5/2- | ||||||
5821 1 | C | 5/2-,7/2- | ||||||
5870 10 | C | |||||||
5920 1 | C | (7/2)- | ||||||
5947 1 | C | |||||||
5986 1 | C | (5/2)- | ||||||
6036 1 | C | 5/2- | ||||||
6088 10 | C | |||||||
6132 1 | C | 5/2- | ||||||
6197 1 | C | 5/2- | ||||||
6280 1 | C | 5/2- | ||||||
6310 1 | C | 5/2- | ||||||
6345 1 | C | (5/2)- | ||||||
6375 10 | C | |||||||
6419 10 | C | |||||||
6453 10 | C | |||||||
6475 1 | C | 5/2- | ||||||
6512 1 | C | 5/2- | ||||||
6564 1 | C | (5/2-,7/2-) | ||||||
6614 1 | C | (9/2+) | ||||||
6672 10 | C | |||||||
6726 10 | C | |||||||
6762 10 | C | |||||||
6797 10 | C | |||||||
6846 10 | C | |||||||
6903 10 | C | |||||||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
6959 10 | C | |||||||
7009 10 | C | |||||||
7049 10 | C | |||||||
7106 10 | C | |||||||
7170 10 | C | |||||||
7220 10 | C | |||||||
7282 10 | C | |||||||
7311 10 | C | |||||||
7351 10 | C | |||||||
7426 10 | C | |||||||
7480 10 | C | |||||||
7524 10 | C | |||||||
7595 10 | C | |||||||
7682 10 | C | |||||||
7725 10 | C | |||||||
7761 10 | C | |||||||
7818 10 | C | |||||||
7872 10 | C | |||||||
7945 10 | C | |||||||
7998 10 | C | |||||||
8030 10 | C | |||||||
8103 10 | C | |||||||
8153 10 | C | |||||||
8234 10 | C | |||||||
8277 10 | C | |||||||
8301 10 | C |
E(level): From least-squares fit to Eγ’s for levels populated in γ-ray studies. Others are primarily from (d,p). For neutron-unbound levels, see 40Ar(n,n): resonances dataset
Jπ(level): Except where noted, assignments are from L-transfer and Ay(θ) in (pol d,p) with Jπ=1/2- when L=1, Jπ=3/2- when L=1, Jπ= 5/2- when L=3, Jπ= 7/2- when L=3, Jπ= 1/2+ when L=0, Jπ= 3/2+ when L=2, Jπ= 5/2+ when L=2, Jp=7/2+ when L=4, and Jπ=9/2+ when L=4
T1/2(level): From (d,pγ), unless otherwise stated
E(γ): From β decay and (n,γ) when uncertainty is quoted, others are from level-energy differences, rounded off to nearest keV
I(γ): From (d,pγ), unless otherwise stated
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
167.11 | 5/2- | 315 ps 15 | 167.1 1 | [M1] | 0.00251 | B(M1)(W.u.)=0.0149 8, α=0.00251, α(K)=0.00230 4, α(L)=0.000191 3, α(M)=1.86×10-5 3 |
515.77 | 3/2- | 0.26 ns 8 | 516.0 3 | [E2] | 4.49×10-4 | B(E2)(W.u.)=5.5 18, α=4.49E-4, α(K)=0.000412 6, α(L)=3.39E-5 5, α(M)=3.30E-6 5 |
1033.94 | 3/2+ | 5 ps +28-3 | 517.9 3 | [E1] | 1.29×10-4 | B(E1)(W.u.)=0.00036 +54-31, α=1.29E-4, α(K)=0.0001182 17, α(L)=9.68E-6 14, α(M)=9.43E-7 14 |
3/2+ | 5 ps +28-3 | 866.7 2 | [E1] | B(E1)(W.u.)=0.00010 +14-8 | ||
1867.99 | 1/2+ | ≤ 46 ps | 514.2 1 | [E1] | 1.31×10-4 | B(E1)(W.u.)>4.2E-5, α=1.31E-4, α(K)=0.0001203 17, α(L)=9.85E-6 14, α(M)=9.61E-7 14 |
1/2+ | ≤ 46 ps | 1353.3 3 | [E1] | 1.77×10-4 | B(E1)(W.u.)>1.4E-6, α=1.77E-4, α(K)=1.571E-5 22, α(L)=1.283E-6 18, α(M)=1.252E-7 18 | |
2397.9 | 1/2- | 0.12 ps 3 | 2229.5 20 | [E2] | B(E2)(W.u.)=0.46 24 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
515.77 | 3/2- | 0.26 ns 8 | Jπ(level): From circular polarization measurements in (pol n,γ) (1972St04). |
1353.71 | 3/2- | 0.40 ps 6 | Jπ(level): From circular polarization measurements in (pol n,γ) (1972St04). |
2397.9 | 1/2- | 0.12 ps 3 | Jπ(level): From circular polarization measurements in (pol n,γ) (1972St04). |
2733.1 | 3/2- | < 31 fs | Jπ(level): From circular polarization measurements in (pol n,γ) (1972St04). |
2948.5 | 3/2- | < 62 fs | Jπ(level): From circular polarization measurements in (pol n,γ) (1972St04). |
3326.3 | 1/2- | < 17 fs | Jπ(level): From circular polarization measurements in (pol n,γ) (1972St04). |
E(level) | E(gamma) | Comments |
167.11 | 167.1 | M(γ): From RUL, E2 component is negligible since pure E2 transition with B(E2) in the order 1600 W.u. exceeds the reasonable limit for 41Ar |
2397.9 | 1881.5 | I(γ): other: 23 in (n,γ) |
2948.5 | 2432.5 | I(γ): average of (n,γ) and (d,pγ) |
3326.3 | 1458 | E(γ): from (d,pγ) only | 3159 | E(γ): from (d,pγ) only |
3968.1 | 3451.8 | I(γ): from (n,γ) |
Levels: 40Ar+n resonance work (1991Wi02) is not included in Adopted Levels, 206 resonances below E(n)=1520 keV (6110-7580 excitation energy in 41Ar) were reported with energies, Jπ’s and gΓn values. See 40Ar(n,n): resonances dataset for details.