List of levels for 159EU

ADOPTED LEVELS, GAMMAS for ¹⁵⁹Eu

Author: C. W. Reich | Citation: Nucl. Data Sheets 113, 157 (2012) | Cutoff date: 31-Dec-2010

Full ENSDF file | Adopted Levels (PDF version)

Q(β-)=2518 keV 4	S(n)= 6859 keV 11	S(p)= 8082 keV 7	Q(α)= -1528 keV 6
S(2n)= 12727 keV 11	S(2p)= 18324 keV 7
Reference: 2017WA10

References:
A	¹⁶⁰Gd(pol t,α)	B	¹⁵⁹Sm β^- decay

E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	Final Levels
0	A B	5/2+	18.1 m 1 % β^- = 100
75.41 4	A B	7/2+		75.44 4	100	0	5/2+
172.00 6	A B	9/2+		96.65 8 172.00 6	53 12 100 12	75.41 0	7/2+ 5/2+
189.80 5	A B	5/2-		114.42 6 189.79 9	7.2 10 100	75.41 0	7/2+ 5/2+
254.54 5	A B	7/2-		64.76 6 82.58 5 179.09 9 254.43 8	11.8 14 8.0 14 59 3 100 4	189.80 172.00 75.41 0	5/2- 9/2+ 7/2+ 5/2+
291	A	11/2+
333.61 12	A B	3/2+		143.90 12 333.20 26	81 22 100 22	189.80 0	5/2- 5/2+
337	A	9/2-
392	A	5/2+
442	A	11/2-
571	A	9/2+
571	A	(13/2-)
704	A	(15/2-)
806	A	(3/2+)
887	A
1051.8 2	B	7/2-		797.2 5 861.97 14 879.78 29 976.6 3 1051.7 3	33 6 100 6 12.6 18 14.4 20 15 4	254.54 189.80 172.00 75.41 0	7/2- 5/2- 9/2+ 7/2+ 5/2+
1076	A	1/2+
1140	A	(3/2+)
1140	A	(5/2+)
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	Final Levels
≈1260	A
≈1287	A
≈1310	A	(7/2+)
1488	A
1635	A
≈1670	A
≈1690	A
1765	A
≈1803	A
≈1825	A
1905	A
1954	A
≈2460	A

E(level): From least-squares fit to γ energies.

J^π(level): From measured angular distributions and analyzing powers in (pol t,α) (1979Bu05), except as noted for the ground state and 1051 level.

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	Final Levels
Band 1 - π5/2[413] band, g.s. band. α=10.83~keV, β=-2.5 eV.
0	5/2+	18.1 m 1 % β^- = 100
75.41 4	7/2+		75.44 4	100	0	5/2+
172.00 6	9/2+		96.65 8 172.00 6	53 12 100 12	75.41 0	7/2+ 5/2+
291	11/2+
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	Final Levels
Band 2 - π5/2[532] band. α=9.25~keV.
189.80 5	5/2-
254.54 5	7/2-		64.76 6 82.58 5 179.09 9 254.43 8	11.8 14 8.0 14 59 3 100 4	189.80 172.00 75.41 0	5/2- 9/2+ 7/2+ 5/2+
337	9/2-
442	11/2-
571	(13/2-)
704	(15/2-)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	Final Levels
Band 3 - π3/2[411] band. α=11.7~keV.
333.61 12	3/2+
392	5/2+
571	9/2+
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	Final Levels
Band 4 - π1/2[420] band. α=10.7~keV, a=+1.0.
1076	1/2+
1140	(3/2+)
1140	(5/2+)
≈1310	(7/2+)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	Final Levels
Band 5 - π7/2[523] bandhead.
1051.8 2	7/2-

E(level)	J^π(level)	T_1/2(level)	Comments
0	5/2+	18.1 m 1 % β^- = 100	μ=1.38 2 From an evaluation of data on nuclear rms charge radii, 2004An14 report <r²>^1/2=5.149~fm~17. E(level): From an evaluation of data on nuclear rms charge radii, 2004An14 report <r²>^1/2=5.149~fm~17. π5/2[413] band, g.s. band. α=10.83~keV, β=-2.5 eV.
75.41	7/2+		E(level): π5/2[413] band, g.s. band. α=10.83~keV, β=-2.5 eV.
172.00	9/2+		E(level): π5/2[413] band, g.s. band. α=10.83~keV, β=-2.5 eV.
189.80	5/2-		E(level): π5/2[532] band. α=9.25~keV.
254.54	7/2-		E(level): π5/2[532] band. α=9.25~keV.
291	11/2+		E(level): π5/2[413] band, g.s. band. α=10.83~keV, β=-2.5 eV.
333.61	3/2+		E(level): π3/2[411] band. α=11.7~keV.
337	9/2-		E(level): π5/2[532] band. α=9.25~keV.
392	5/2+		E(level): π3/2[411] band. α=11.7~keV.
442	11/2-		E(level): π5/2[532] band. α=9.25~keV.
571	9/2+		E(level): π3/2[411] band. α=11.7~keV.
571	(13/2-)		E(level): π5/2[532] band. α=9.25~keV.
704	(15/2-)		E(level): π5/2[532] band. α=9.25~keV.
1051.8	7/2-		E(level): π7/2[523] bandhead.
1076	1/2+		E(level): π1/2[420] band. α=10.7~keV, a=+1.0.
1140	(3/2+)		E(level): π1/2[420] band. α=10.7~keV, a=+1.0.
1140	(5/2+)		E(level): π1/2[420] band. α=10.7~keV, a=+1.0.
1310	(7/2+)		E(level): π1/2[420] band. α=10.7~keV, a=+1.0.