ADOPTED LEVELS, GAMMAS for 47K
Author: T. W. Burrows | Citation: Nucl. Data Sheets 108, 923 (2007) | Cutoff date: 20-Feb-2007
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=6631 keV 3 | S(n)= 8369.4 keV 16 | S(p)= 1.327×104 keV 4 | Q(α)= -1.381×104 keV 10 | ||
| Reference: 2012WA38 |
| References: | |||
| A | 47Ar β- decay: TENTATIVE | B | 48Ca(MU,nγ): AT REST |
| C | 48Ca(E,E’p) E=440 MeV | D | 48Ca(d,3He),(pol d,3He),(t,α) |
| E | 48Ca(48Ca,xγ) E=210 MeV | F | 198Pt(48Ca,xγ) |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0 | ABCDEF | 1/2+ | 17.50 s 24 % β- = 100 | |||||
| 360.0 10 | ABCDEF | 3/2+ | 1.1 ns 3 | 360 | 100 | (M1,E2) | 0 | 1/2+ |
| 2020.0 15 | A DEF | (7/2-) | 6.3 ns 4 | 1660 2020? | 100 10 13.2 19 | (M2) [E3] | 360.0 0 | 3/2+ 1/2+ |
| 2287.0 18 | E | 267 | | 2020.0 | (7/2-) | |||
| 3.35E+3 3 | DE | 5/2+,3/2+ | 1319 | | 2020.0 | (7/2-) | ||
| 3432 19 | CD | (5/2)+ | ||||||
| 3717.6 7 | A D | (3/2-) | 3357? 3718? | 7 7 100 15 | 360.0 0 | 3/2+ 1/2+ | ||
| 3762.1 18 | A | (5/2-) | 1742 3402? | 100 10 10 5 | 2020.0 360.0 | (7/2-) 3/2+ | ||
| 3.85E+3 2 | CD | 1/2+ | ||||||
| 3.93E+3 2 | CD | 3/2+ | ||||||
| 4.17E+3 6 | D | |||||||
| 4.36E+3 4 | D | |||||||
| 4434.1 20 | E | 1094 2147 | | 3.35E+3 2287.0 | 5/2+,3/2+ | |||
| 4.74E+3 4 | D | |||||||
| 4.90E+3 4 | D | |||||||
| 5220 20 | CD | 5/2+ | ||||||
| 5465 25 | CD | 5/2+ | ||||||
| 5.79E+3 2 | D | |||||||
| 5842.4 18 | A | (5/2-) | 3822 | 100 | 2020.0 | (7/2-) | ||
| 6.15E+3 4 | D | 5/2+,3/2+ | ||||||
| 6.26E+3 4 | D | |||||||
| 6.42E+3 4 | D | |||||||
| 6462 32 | CD | (5/2)+ | ||||||
| 6.87E+3 4 | CD | (5/2)+ | ||||||
| 7.15E+3 5 | D | |||||||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 7.38E+3 4 | D | |||||||
| 7.57E+3 3 | D | (5/2)+ | ||||||
| 7762 33 | CD | (5/2)+ | ||||||
| 8035 38 | CD | (5/2)+ | ||||||
| 8530 20 ? | D | 5/2+,3/2+ | ||||||
E(level): From 48Ca(d,3He),(pol d,3He),(t,α), except as noted
Jπ(level): From comparison to α(θ) for the 3.93- and 5.46-MeV states in (pol d,3He), except as noted
T1/2(level): From γγ(t) in 198Pt(48Ca,Xγ), except as noted
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 360.0 | 3/2+ | 1.1 ns 3 | 360 | (M1,E2) | 0.0011 | α=0.0011 7, α(K)=0.0010 6, α(L)=9.E-5 5, α(M)=1.0E-5 6, α(N+)=3.5E-7 20 |
| 2020.0 | (7/2-) | 6.3 ns 4 | 1660 | (M2) | 9.12×10-5 | B(M2)(W.u.)=0.026 4, α=9.12×10-5 13, α(K)=3.70E-5 6, α(L)=3.10E-6 5, α(M)=3.37E-7 5, α(N)=1.242E-8 18, α(N+)=5.08E-5 8 |
| (7/2-) | 6.3 ns 4 | 2020 | [E3] | 0.000206 | B(E3)(W.u.)=1.25 23, α=0.000206 3, α(K)=2.61E-5 4, α(L)=2.19E-6 3, α(M)=2.38E-7 4, α(N)=8.76E-9 13, α(N+)=0.0001779 25 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | 1/2+ | 17.50 s 24 % β- = 100 | μ=+1.933 9 (2005St24,1982To02), CONF=((48CA (1984Al18), T=9/2 E(level): From 48Ca(48Ca,Xγ). Jπ(level): The strength of the g.s. and 3.85-MeV state exhaust 90% of shell-model sum rule (1985Ba14) in (d,3He). See β- decay for configurations suggest by 2004We09. See 2006Ga31 for a study of the systematics of the d3/2-s1/2 proton hole splitting in the odd-mass K, Cl, and p isotopes for n=20-28 and d5/2-d3/2 for 39K and 47K. |
| 360.0 | 3/2+ | 1.1 ns 3 | T=9/2 E(level): From least-squares fit to Eγ’s assuming ΔE(γ)=1 keV. Jπ(level): See β- decay for configurations suggest by 2004We09. See 2006Ga31 for a study of the systematics of the d3/2-s1/2 proton hole splitting in the odd-mass K, Cl, and p isotopes for n=20-28 and d5/2-d3/2 for 39K and 47K. The combined strength of the 360 and 3930 states exceeds the shell-model sum rule for d3/2 (1987Og01,1985Ba14) in (d,3He) and (t,α). |
| 2020.0 | (7/2-) | 6.3 ns 4 | E(level): From least-squares fit to Eγ’s assuming ΔE(γ)=1 keV. Jπ(level): See β- decay for configurations suggest by 2004We09. |
| 2287.0 | E(level): From least-squares fit to Eγ’s assuming ΔE(γ)=1 keV. | ||
| 3.35E+3 | 5/2+,3/2+ | Jπ(level): From angular momentum transfer in (d,3He). | |
| 3432 | (5/2)+ | Jπ(level): See 2006Ga31 for a study of the systematics of the d3/2-s1/2 proton hole splitting in the odd-mass K, Cl, and p isotopes for n=20-28 and d5/2-d3/2 for 39K and 47K. | |
| 3717.6 | (3/2-) | E(level): From least-squares fit to Eγ’s assuming ΔE(γ)=1 keV. Jπ(level): See β- decay for configurations suggest by 2004We09. From comparison of experimental to calculated decay patterns (2004We09) in β- decay. | |
| 3762.1 | (5/2-) | E(level): From least-squares fit to Eγ’s assuming ΔE(γ)=1 keV. Jπ(level): See β- decay for configurations suggest by 2004We09. From comparison of experimental to calculated decay patterns (2004We09) in β- decay. | |
| 3.85E+3 | 1/2+ | E(level): From 48Ca(48Ca,Xγ). Jπ(level): The strength of the g.s. and 3.85-MeV state exhaust 90% of shell-model sum rule (1985Ba14) in (d,3He). | |
| 3.93E+3 | 3/2+ | Jπ(level): The combined strength of the 360 and 3930 states exceeds the shell-model sum rule for d3/2 (1987Og01,1985Ba14) in (d,3He) and (t,α). | |
| 4434.1 | E(level): From least-squares fit to Eγ’s assuming ΔE(γ)=1 keV. | ||
| 5842.4 | (5/2-) | E(level): From least-squares fit to Eγ’s assuming ΔE(γ)=1 keV. Jπ(level): See β- decay for configurations suggest by 2004We09. From comparison of experimental to calculated decay patterns (2004We09) in β- decay. | |
| 6.15E+3 | 5/2+,3/2+ | Jπ(level): From angular momentum transfer in (d,3He). | |
| 8530 | 5/2+,3/2+ | Jπ(level): From angular momentum transfer in (d,3He). |
| E(level) | E(gamma) | Comments |
| 360.0 | 360 | E(γ): From 48Ca(48Ca,Xγ) M(γ): d,E2 from comparison to RUL. Δπ=no from level scheme |
| 2020.0 | 1660 | M(γ): ΔJ=2 from W(in plane)/W(out of plane) in 198Pt(48Ca,Xγ); Δπ=yes from level scheme |
| 2287.0 | 267 | E(γ): From 48Ca(48Ca,Xγ) |
| 3.35E+3 | 1319 | E(γ): From 48Ca(48Ca,Xγ) |
| 4434.1 | 1094 | E(γ): From 48Ca(48Ca,Xγ) | 2147 | E(γ): From 48Ca(48Ca,Xγ) |
Gammas: See β- decay for unplaced gammas
Q-value: Note: Current evaluation has used the following Q record 6644 8 8349 1613270 40 2003Au03