ADOPTED LEVELS, GAMMAS for 49Ca
Author: T. W. Burrows | Citation: Nucl. Data Sheets 109, 1879 (2008) | Cutoff date: 14-Jul-2008
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=5261 keV 3 | S(n)= 5146.45 keV 18 | S(p)= 16304.4 keV 8 | Q(α)= -13954.0 keV 6 | ||
Reference: 2012WA38 |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0.0 | ABCD FGHI | 3/2- | 8.718 m 6 % β- = 100 | |||||
2023.2 3 | ABCD FGHI | 1/2- | < 5.5 fs | 2023.12 26 | 100 | (M1,E2) | 0.0 | 3/2- |
3354.7 6 | BC FGHI | (9/2+) | 3356.7 10 | 100 | [E3] | 0.0 | 3/2- | |
3585.0 8 | ABC FGH | 5/2- | 40 fs +23-16 | 3585.0 | 100 | (M1,E2) | 0.0 | 3/2- |
3861 2 | BC FG I | (1/2-,3/2-) | 3859.7 9 | 100 | 0.0 | 3/2- | ||
3991 2 | C FG | 5/2- | 9.7 fs +49-35 | 3991 | 100 | (M1,E2) | 0.0 | 3/2- |
4013.6 6 | C FG I | 7/2+,9/2+ | 0.60 ps +35-18 | 150.9? 660.3 4017.5? | | 3861 3354.7 0.0 | (1/2-,3/2-) (9/2+) 3/2- | |
4072 1 | ABC FG | 3/2- | 60 fs +21-19 | 4072.0 | 100 | (M1,E2) | 0.0 | 3/2- |
4261 | F | 1/2- | ||||||
4272 1 | A C FG | 1/2- | 25 fs +22-17 | 2249 4272 | 87 16 100 16 | (M1,E2) (M1,E2) | 2023.2 0.0 | 1/2- 3/2- |
4416 2 | C FG | 5/2+ | < 32 fs | 4416 | 100 | (E1) | 0.0 | 3/2- |
4617 6 ? | F | |||||||
4757.0 10 | F I | (5/2+) | 743.3 | | 4013.6 | 7/2+,9/2+ | ||
4788 6 ? | F | |||||||
4885 3 | FG | 9/2+ | 875 1531 | 100 20 25 5 | 4013.6 3354.7 | 7/2+,9/2+ (9/2+) | ||
5132.8 10 | I | 1119.1 | | 4013.6 | 7/2+,9/2+ | |||
5165.5 | E | |||||||
5251.3 | E | |||||||
5309 | A EF | 1/2 | 59 eV 34 % IT = 0.25 10 % n = 99.75 10 | |||||
5378 | F | 9/2+ | ||||||
5443.9 | E | 1/2- | 2.5 keV +36-25 % IT = 0.012 % n = 99.988 12 | |||||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
5539.5 | E | 3/2- | 3.3 keV 18 % IT = 0.024 8 % n = 99.976 8 | |||||
5553 | EF | GE 5/2 | ≥ 0.38 keV % n ≥ 99.87 5 % IT ≤ 0.13 5 | |||||
5568 | A F | 1/2- | ||||||
5587.7 | A E | 1/2- | 4.3 keV 27 % IT = 0.058 % n = 99.942 24 | |||||
5612 | A F | |||||||
5680.2 9 | I | 547.4 923.2 1666.5 | | 5132.8 4757.0 4013.6 | (5/2+) 7/2+,9/2+ | |||
5693 | A F | |||||||
5722 | A F | |||||||
6076 | EF | 5/2+ | ||||||
6257 | E | 1/2 | ||||||
6262 | F | |||||||
6.33E+3 2 | A | (1/2+,3/2+,5/2+) | % n ≈ 100 | |||||
6376 | A EF | (5/2+) | % n ≈ 100 | |||||
6425 | F | 3/2 | 10 keV | |||||
6443 | F | 3/2 | 3 keV | |||||
6492 | E | 3/2- | 8 keV | |||||
6513 | A E | 5/2+ | % n ≈ 100 | |||||
6529 | F | 9/2+ | ||||||
6595 | F | |||||||
6707 | A E | 5/2+ | % n ≈ 100 | |||||
6753 | F | 9/2+ | ||||||
6882 | F | |||||||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
6924 | A E | 5/2+ | % n ≈ 100 | |||||
6971 | F | |||||||
7070 | A E | 5/2+ | % n ≈ 100 | |||||
7070 | E | GE 7/2 | ||||||
7335 | A F | (1/2+,3/2+,5/2+) | % n ≈ 100 | |||||
7428 | A F | (1/2+,3/2+,5/2+) | % n ≈ 100 | |||||
7529 | F | (9/2+) | ||||||
7612 | A F | % n ≈ 100 | ||||||
7705 | F | (9/2+) | ||||||
7872 | A F | % n ≈ 100 | ||||||
8.14E+3 7 ? | A | % n ≈ 100 | ||||||
8.39E+3 8 ? | A | (1/2+,3/2+,5/2+) | % n ≈ 100 | |||||
8.67E+3 9 ? | A | % n ≈ 100 | ||||||
9.10E+3 | A | % n ≈ 100 | ||||||
9.28E+3 10 | A | % n ≈ 100 | ||||||
9.58E+3 11 | A | % n ≈ 100 | ||||||
10.10E+3 13 ? | A | % n ≈ 100 |
E(level): From (d,p),(pol d,p), except as noted. Note that the correspondence between unbound states observed in (d,p), β- decay, and (n,X),(n,γ) should not Be considered as well established.
Jπ(level): From comparison of σ(θ) and α(θ) to DWBA in (pol d,p), except as noted
T1/2(level): T1/2’s are from DSAM in (d,pγ), except as noted. Γ’s are from gΓnΓγ/Γ, Γn, Γγ, and adopted J, except as noted
E(γ): From (48Ca,Xγ), except as noted
I(γ): Relative photon branching from each level. From β- decay, except as noted
M(γ): d,E2 from comparison to RUL and Δπ from level scheme, except as noted
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
2023.2 | 1/2- | < 5.5 fs | 2023.12 26 | (M1,E2) | 0.000314 | α=0.000314 5, α(K)=1.82×10-5 9, α(L)=1.56E-6 7, α(M)=1.85E-7 9, α(N)=1.05E-8 5, α(N+)=0.00029 4 |
3354.7 | (9/2+) | 3356.7 10 | [E3] | 6.83×10-4 | B(E3)(W.u.)>5.9, α=6.83E-4 10, α(K)=1.131E-5 16, α(L)=9.69E-7 14, α(M)=1.151E-7 17, α(N+)=0.000671 10 | |
3585.0 | 5/2- | 40 fs +23-16 | 3585.0 | (M1,E2) | 0.000977 | α=0.000977 14, α(K)=7.25×10-6 17, α(L)=6.20E-7 14, α(M)=7.36E-8 17, α(N)=4.20E-9 10, α(N+)=0.00096 7 |
3991 | 5/2- | 9.7 fs +49-35 | 3991 | (M1,E2) | 0.001117 | α=0.001117 14, α(K)=6.19×10-6 13, α(L)=5.29E-7 12, α(M)=6.29E-8 14, α(N)=3.58E-9 8, α(N+)=0.00110 7 |
4072 | 3/2- | 60 fs +21-19 | 4072.0 | (M1,E2) | 0.001137 | α=0.001137 16, α(K)=6.02×10-6 13, α(L)=5.14E-7 11, α(M)=6.11E-8 13, α(N)=3.48E-9 8, α(N+)=0.00113 7 |
4272 | 1/2- | 25 fs +22-17 | 2249 | (M1,E2) | 0.000415 | α=0.000415 6, α(K)=1.52×10-5 6, α(L)=1.30E-6 5, α(M)=1.54E-7 6, α(N)=8.8E-9 4, α(N+)=0.00039 5 |
1/2- | 25 fs +22-17 | 4272 | (M1,E2) | 0.001208 | α=0.001208 17, α(K)=5.62×10-6 12, α(L)=4.80E-7 10, α(M)=5.70E-8 12, α(N)=3.25E-9 7, α(N+)=0.00120 8 | |
4416 | 5/2+ | < 32 fs | 4416 | (E1) | 0.00184 | B(E1)(W.u.)>0.00018, α=0.00184 3, α(K)=4.07E-6 6, α(L)=3.48E-7 5, α(M)=4.13E-8 6, α(N)=2.35E-9 4, α(N+)=0.00184 3 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0.0 | 3/2- | 8.718 m 6 % β- = 100 | μ=-1.38 6 (1993VeZY) T1/2(level): Weighted av (internal) of 8.718 min 7 (1989Ab05; NaI), 8.715 min 23 (1970Ha22; NaI,chem,>20 T1/2’s), and 8.719 min 13 (1970Re13; 7 T1/2’s); all groups used (n,γ) to produce 49Ca. Others: see 1995Bu23. |
3354.7 | (9/2+) | T1/2 |> 17.9 ps, T1/2 |< 0.3 ns. E(level): From least-squares fit to Eγ’s assuming ΔEγ=1 keV when not given and holding the 3585 and 3861 states fixed. Weighted average (internal) of 2023.5 5 from β-n decay and 2023.16 30 from (n,γ) E=thermal. | |
3585.0 | 5/2- | 40 fs +23-16 | CONF=((48CA 2+) (1978He15) E(level): From β- decay. |
3861 | (1/2-,3/2-) | E(level): From (d,pγ). From β-n decay. | |
3991 | 5/2- | 9.7 fs +49-35 | CONF=((48CA 2+) (1978He15) E(level): From (d,pγ). From β-n decay. |
4013.6 | 7/2+,9/2+ | 0.60 ps +35-18 | CONF=((48CA 3-)(N (1978He15) E(level): From least-squares fit to Eγ’s assuming ΔEγ=1 keV when not given and holding the 3585 and 3861 states fixed. Weighted average (internal) of 2023.5 5 from β-n decay and 2023.16 30 from (n,γ) E=thermal. |
4072 | 3/2- | 60 fs +21-19 | E(level): Unweighted average of 4065 2 from (d,pγ) and 4072 1 from β- decay. |
4272 | 1/2- | 25 fs +22-17 | E(level): From (d,pγ). From β-n decay. |
4416 | 5/2+ | < 32 fs | E(level): From (d,pγ). From β-n decay. |
4757.0 | (5/2+) | E(level): From least-squares fit to Eγ’s assuming ΔEγ=1 keV when not given and holding the 3585 and 3861 states fixed. Weighted average (internal) of 2023.5 5 from β-n decay and 2023.16 30 from (n,γ) E=thermal. | |
4885 | 9/2+ | E(level): From (d,pγ). From β-n decay. | |
5132.8 | E(level): From least-squares fit to Eγ’s assuming ΔEγ=1 keV when not given and holding the 3585 and 3861 states fixed. Weighted average (internal) of 2023.5 5 from β-n decay and 2023.16 30 from (n,γ) E=thermal. | ||
5165.5 | gΓnΓγ/Γ (eV)=9.5×10-3 14. E(level): From E(n)(lab) in (n,X),(n,γ). | ||
5251.3 | gΓnΓγ/Γ (eV)=0.124 24. E(level): From E(n)(lab) in (n,X),(n,γ). | ||
5309 | 1/2 | 59 eV 34 % IT = 0.25 10 % n = 99.75 10 | Γγ=0.15 6, Γn=59 5 gΓnΓγ/Γ (eV)=0.15 6. E(level): From β- decay. Eγ discrepant with energy level difference by more than three σ. Jπ(level): From the R-matrix analysis of 1987Ca11 in (n,X),(n,γ). |
5443.9 | 1/2- | 2.5 keV +36-25 % IT = 0.012 % n = 99.988 12 | Γγ=0.3 3, Γn=2.5 3 gΓnΓγ/Γ (eV)=12 . E(level): From E(n)(lab) in (n,X),(n,γ). Jπ(level): From the evaluation of 2006MuZX. |
5539.5 | 3/2- | 3.3 keV 18 % IT = 0.024 8 % n = 99.976 8 | Γγ=0.8 3, Γn=3.3 2 gΓnΓγ/Γ (eV)=1.6 6. E(level): From E(n)(lab) in (n,X),(n,γ). Jπ(level): From the evaluation of 2006MuZX. |
5553 | GE 5/2 | ≥ 0.38 keV % n ≥ 99.87 5 % IT ≤ 0.13 5 | Γγ=0.5 1, Γn=0.38 8 gΓnΓγ/Γ (eV)=1.5 4. E(level): From β- decay. Eγ discrepant with energy level difference by more than three σ. Jπ(level): From the R-matrix analysis of 1987Ca11 in (n,X),(n,γ). |
5568 | 1/2- | Jπ(level): From the evaluation of 2006MuZX. (1/2+,3/2+,5/2+) for the multiplet from log ft<5.9 from (3/2+). | |
5587.7 | 1/2- | 4.3 keV 27 % IT = 0.058 % n = 99.942 24 | Γγ=2.5 10, Γn=4.3 4 gΓnΓγ/Γ (eV)=24 . E(level): From E(n)(lab) in (n,X),(n,γ). Jπ(level): From the evaluation of 2006MuZX. (1/2+,3/2+,5/2+) for the multiplet from log ft<5.9 from (3/2+). |
5693 | Jπ(level): (1/2+,3/2+,5/2+) for the multiplet from log ft<5.9 from (3/2+). | ||
5722 | Jπ(level): (1/2+,3/2+,5/2+) for the multiplet from log ft<5.9 from (3/2+). | ||
6076 | 5/2+ | E(level): Eγ discrepant with energy level difference by more than three σ. Jπ(level): From the evaluation of 2006MuZX. | |
6257 | 1/2 | Γn=6 3 E(level): From β- decay. From the R-matrix analysis of 1987Ca11 in (n,X),(n,γ). From (d,pγ). Jπ(level): From the R-matrix analysis of 1987Ca11 in (n,X),(n,γ). | |
6.33E+3 | (1/2+,3/2+,5/2+) | % n ≈ 100 | E(level): From β- decay. Jπ(level): log ft<5.9 from (3/2+) in β- decay. |
E(level) | Jπ(level) | T1/2(level) | Comments |
6376 | (5/2+) | % n ≈ 100 | Γn=1.2 4 E(level): Eγ discrepant with energy level difference by more than three σ. |
6425 | 3/2 | 10 keV | E(level): From the evaluation of 2006MuZX. Jπ(level): From the evaluation of 2006MuZX. T1/2(level): From the evaluation of 2006MuZX. |
6443 | 3/2 | 3 keV | Jπ(level): From the evaluation of 2006MuZX. T1/2(level): From the evaluation of 2006MuZX. |
6492 | 3/2- | 8 keV | Γn=5 1 E(level): From β- decay. From the R-matrix analysis of 1987Ca11 in (n,X),(n,γ). From (d,pγ). Jπ(level): From the R-matrix analysis of 1987Ca11 in (n,X),(n,γ). T1/2(level): From the evaluation of 2006MuZX. |
6513 | 5/2+ | % n ≈ 100 | Γn=4 2 E(level): From β- decay. From the R-matrix analysis of 1987Ca11 in (n,X),(n,γ). From (d,pγ). Jπ(level): From the R-matrix analysis of 1987Ca11 in (n,X),(n,γ). |
6707 | 5/2+ | % n ≈ 100 | Γn=160 20 E(level): From β- decay. From the R-matrix analysis of 1987Ca11 in (n,X),(n,γ). From (d,pγ). Jπ(level): From the R-matrix analysis of 1987Ca11 in (n,X),(n,γ). |
6924 | 5/2+ | % n ≈ 100 | Γn=240 20 E(level): From β- decay. From the R-matrix analysis of 1987Ca11 in (n,X),(n,γ). From (d,pγ). Jπ(level): From the R-matrix analysis of 1987Ca11 in (n,X),(n,γ). |
7070 | 5/2+ | % n ≈ 100 | Γn=18 2 E(level): From β- decay. From the R-matrix analysis of 1987Ca11 in (n,X),(n,γ). From (d,pγ). Jπ(level): From the R-matrix analysis of 1987Ca11 in (n,X),(n,γ). |
7070 | GE 7/2 | Γn=2.9 6 E(level): From β- decay. From the R-matrix analysis of 1987Ca11 in (n,X),(n,γ). From (d,pγ). Jπ(level): From the R-matrix analysis of 1987Ca11 in (n,X),(n,γ). | |
7335 | (1/2+,3/2+,5/2+) | % n ≈ 100 | Jπ(level): log ft<5.9 from (3/2+) in β- decay. |
7428 | (1/2+,3/2+,5/2+) | % n ≈ 100 | Jπ(level): log ft<5.9 from (3/2+) in β- decay. |
8.14E+3 | % n ≈ 100 | E(level): From β- decay. | |
8.39E+3 | (1/2+,3/2+,5/2+) | % n ≈ 100 | E(level): From β- decay. Jπ(level): log ft<5.9 from (3/2+) in β- decay. |
8.67E+3 | % n ≈ 100 | E(level): From β- decay. | |
9.10E+3 | % n ≈ 100 | E(level): From β- decay. | |
9.28E+3 | % n ≈ 100 | E(level): From β- decay. | |
9.58E+3 | % n ≈ 100 | E(level): From β- decay. | |
10.10E+3 | % n ≈ 100 | E(level): From β- decay. |
Levels: Analog states: see 48Ca(p,X),(d,n),(3He,d),(α,t) in 49Sc
Levels: Configuration: from analysis of 48Ca(3He,dp) data by 1978He15. See 48Ca(d,n),(3He,d),(α,t) in 49Sc
Levels: %n: inferred by the evaluator from the lack of competing γ deexcitation in β- decay or calculated from gΓnΓγ/Γ, Γn, Γγ, and adopted J
Levels: %γ: calculated from gΓnΓγ/Γ, Γn, Γγ, and adopted J
Levels: Γn,Γγ: from the R-matrix analysis of 1987Ca11 in (n,X),(n,γ)
Levels: gΓnΓγ/Γ from the R-matrix analysis of 1987Ca11 in (n,X),(n,γ)
Gammas: See (d,pγ) for questionably placed γ’s which have not been adopted.
Q-value: Note: Current evaluation has used the following Q record 5262.1 295146.45 1816454 24-13944 4 2003Au03