List of levels for 153ER

Author: N. Nica | Citation: Nucl. Data Sheets 170, 1 (2020) | Cutoff date: 16-Aug-2020

J^π(level): For level seen in (HI,xnγ), from 2000Fo04 and are based on measured Iγ(θ), Iγ(t), and comparison with systematics of nearby isotones, and shell-model predictions.

M(γ): From I(ceK) and Iγ normalized to α_K(340.3)=0.0358 the theoretical value for an E2 γ ((¹⁴N,p4nγ),(¹²C,3nγ), 1982Fo06)

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Conversion Coefficient	Additional Data
299.3	(9/2-)		299.3 1	M1(+E2)	0.102	α=0.102 33, α(K)=0.082 31, α(L)=0.0155 12, α(M)=0.00352 16, α(N)=0.00081 5, α(O)=0.000112 13, α(P)=4.8×10^-6 22
971.0	(13/2+)		205.2 2	E1	0.0486	α=0.0486, α(K)=0.0409 6, α(L)=0.00605 9, α(M)=0.001337 19, α(N)=0.000308 5, α(O)=4.27×10^-5 6, α(P)=2.03E-6 3
2039.3	(21/2-)		340.3	E2	0.0474	α=0.0474, α(K)=0.0357 5, α(L)=0.00910 13, α(M)=0.00212 3, α(N)=0.000485 7, α(O)=6.32×10^-5 9, α(P)=1.88E-6 3
2992.7	(29/2+)	≈ 10 ns	194.5	E1	0.0559	α=0.0559, α(K)=0.0470 7, α(L)=0.00698 10, α(M)=0.001542 22, α(N)=0.000355 5, α(O)=4.92×10^-5 7, α(P)=2.32E-6 4
3312.1	(27/2-)		363.0	M1(+E2)	0.060	α=0.060 21, α(K)=0.049 19, α(L)=0.0086 13, α(M)=0.0019 3, α(N)=0.00045 7, α(O)=6.2×10^-5 12, α(P)=2.9E-6 13
4891.8	(37/2+)		349.1	E1	0.01281	α=0.01281, α(K)=0.01083 16, α(L)=0.001548 22, α(M)=0.000341 5, α(N)=7.89×10^-5 11, α(O)=1.114E-5 16, α(P)=5.66E-7 8
5248.1	(41/2-)	248 ns 32	356.3	M2	0.316	B(M2)(W.u.)<0.36, α=0.316, α(K)=0.256 4, α(L)=0.0466 7, α(M)=0.01062 15, α(N)=0.00248 4, α(O)=0.000355 5, α(P)=1.86×10^-5 3
	(41/2-)	248 ns 32	403.7	M2	0.213	B(M2)(W.u.)=0.151 +43-51, α=0.213, α(K)=0.1732 25, α(L)=0.0307 5, α(M)=0.00697 10, α(N)=0.001629 23, α(O)=0.000233 4, α(P)=1.230×10^-5 18
	(41/2-)	248 ns 32	428.7	[M2]	0.1764	B(M2)(W.u.)<0.070, α=0.1764, α(K)=0.1440 21, α(L)=0.0252 4, α(M)=0.00571 8, α(N)=0.001335 19, α(O)=0.000191 3, α(P)=1.012×10^-5 15

Q(β-)=-6495 keV 13	S(n)= 8040 keV 12	S(p)= 4153 keV 15	Q(α)= 4802.4 keV 14
Reference: 2017WA10

References:
A	¹⁵³Tm ε decay (1.48 S)	B	¹⁵³Tm ε decay (2.5 S)
C	¹⁵⁷Yb α decay	D	¹⁴⁴Sm(¹⁴N,p4nγ),¹⁴⁴Sm(¹²C,3nγ)

E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
0.0	A B C D	(7/2-)	37.1 s 2 % ε = 47 3 % α = 53 3
266.5 1	B	(3/2-)		266.5 1	100		0.0	(7/2-)
299.3 1	A D	(9/2-)		299.3 1	100	M1(+E2)	0.0	(7/2-)
765.8 2	A D	(11/2-)		765.8 2	100		0.0	(7/2-)
971.0 3	A D	(13/2+)		205.2 2	100	E1	765.8	(11/2-)
1011.9 4	A			712.6 3	100		299.3	(9/2-)
1110.9	A D	(13/2-)		345.5 811.2 3	≤17 100		765.8 299.3	(11/2-) (9/2-)
1132.7 5	A			833.4 4	100		299.3	(9/2-)
1497.6	D	(15/2-)		731.9			765.8	(11/2-)
1699.1	D	(17/2-)		201.6 588.1	4 100		1497.6 1110.9	(15/2-) (13/2-)
1725.1	D	(17/2+)		754.5	100		971.0	(13/2+)
1731.1 4	A			965.3 3	100		765.8	(11/2-)
2039.3	D	(21/2-)		340.3	100	E2	1699.1	(17/2-)
2378.3	D	(21/2+)		653.2	100		1725.1	(17/2+)
2751.7	D	(23/2-)		712.2 3	100		2039.3	(21/2-)
2798.2	D	(27/2-)	373 ns 9	46.4S			2751.7	(23/2-)
2908.9	D	(25/2+)		530.5	100		2378.3	(21/2+)
2949.1	D	(25/2-)		909.8	100		2039.3	(21/2-)
2992.7	D	(29/2+)	≈ 10 ns	83.9 194.5		E1	2908.9 2798.2	(25/2+) (27/2-)
3312.1	D	(27/2-)		363.0	100	M1(+E2)	2949.1	(25/2-)
3378.0	D	(29/2-)		65.9 429.0 579.7	≤73 100		3312.1 2949.1 2798.2	(27/2-) (25/2-) (27/2-)
3556.1	D	(31/2-)		757.9	100		2798.2	(27/2-)
3651.7	D	(31/2+)		659.0	100		2992.7	(29/2+)
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
3939.5	D	(33/2+)	≈ 10 ns	287.8 946.7	100 43		3651.7 2992.7	(31/2+) (29/2+)
4044.8	D	(33/2+)		105.3 488.8 1052	≤140 100		3939.5 3556.1 2992.7	(33/2+) (31/2-) (29/2+)
4124.4	D	(33/2-)		568.3 746.4			3556.1 3378.0	(31/2-) (29/2-)
4249.2	D	(33/2-)		693.0	100		3556.1	(31/2-)
4337.3	D			1344.6			2992.7	(29/2+)
4542.6	D	(37/2-)		293.2 418.1	25 100		4249.2 4124.4	(33/2-) (33/2-)
4819.3	D	(37/2+)		482.0 570			4337.3 4249.2	(33/2-)
4827.1	D			284.5	100		4542.6	(37/2-)
4844.5	D	(37/2+)		595.5 799.5			4249.2 4044.8	(33/2-) (33/2+)
4891.8	D	(37/2+)		349.1 847.2		E1	4542.6 4044.8	(37/2-) (33/2+)
5248.1	D	(41/2-)	248 ns 32	356.3 403.7 428.7	<167 100 <67	M2 M2 [M2]	4891.8 4844.5 4819.3	(37/2+) (37/2+) (37/2+)
5980.4	D	(43/2)		732.3			5248.1	(41/2-)
6676.3	D			696.1			5980.4	(43/2)
6853.6	D	(47/2)		177.6 873.0	27 100		6676.3 5980.4	(43/2)
7253.6	D			400.0	100		6853.6	(47/2)
7383.1	D			129.5	100		7253.6
7441	D			765			6676.3
8063.9	D			680.8			7383.1
8275.1	D			211.2	100		8063.9
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
8409.6	D			134.5	100		8275.1

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 1 - ΔJ=2 sequence based on 7/2- ground state
0.0	(7/2-)	37.1 s 2 % ε = 47 3 % α = 53 3
765.8 2	(11/2-)		765.8 2	100		0.0	(7/2-)
1497.6	(15/2-)		731.9			765.8	(11/2-)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 2 - ΔJ=2 sequence based on 9/2- level at 299 keV
299.3 1	(9/2-)
1110.9	(13/2-)		345.5 811.2 3	≤17 100		765.8 299.3	(11/2-) (9/2-)
1699.1	(17/2-)		201.6 588.1	4 100		1497.6 1110.9	(15/2-) (13/2-)
2039.3	(21/2-)		340.3	100	E2	1699.1	(17/2-)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 3 - ΔJ=2 sequence based on 13/2⁺ level at 970 keV
971.0 3	(13/2+)
1725.1	(17/2+)		754.5	100		971.0	(13/2+)
2378.3	(21/2+)		653.2	100		1725.1	(17/2+)
2908.9	(25/2+)		530.5	100		2378.3	(21/2+)