List of levels for 154SM

Author: N. Nica | Citation: Nucl. Data Sheets 200, 2 (2025) | Cutoff date: 22-Aug-2022

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Mixing Ratio	Conversion Coefficient	Additional Data
81.981	2+	3.02 ns 4	81.990 18	E2		4.86	B(E2)(W.u.)=176 3, α=4.86 7, α(K)=1.989 28, α(L)=2.228 31, α(M)=0.518 7, α(N)=0.1134 16, α(O)=0.01414 20, α(P)=8.30E-5 12
266.817	4+	172 ps 4	184.810 25	E2		0.272	B(E2)(W.u.)=245 6, α=0.272 4, α(K)=0.1915 27, α(L)=0.0628 9, α(M)=0.01427 20, α(N)=0.00315 4, α(O)=0.000416 6, α(P)=9.32E-6 13
544.10	6+	22.7 ps 6	277.34 4	E2		0.0719	B(E2)(W.u.)=289 8, α=0.0719 10, α(K)=0.0553 8, α(L)=0.01294 18, α(M)=0.00289 4, α(N)=0.000643 9, α(O)=8.79E-5 12, α(P)=2.93E-6 4
902.75	8+	5.9 ps 3	358.8 2	E2		0.0327	B(E2)(W.u.)=319 16, α=0.0327 5, α(K)=0.0260 4, α(L)=0.00520 7, α(M)=0.001150 16, α(N)=0.000257 4, α(O)=3.58E-5 5, α(P)=1.439E-6 20
921.345	1-	21 fs 1	839.36 2	E1		1.44×10^-3	α=1.44×10^-3 2, α(K)=0.001240 17, α(L)=0.0001605 22, α(M)=3.41E-5 5, α(N)=7.72E-6 11, α(O)=1.153E-6 16, α(P)=7.16E-8 10
921.345	1-	21 fs 1	921.33 3	E1		1.20×10^-3	B(E1)(W.u.)=0.0058 3, α=1.20E-3 2, α(K)=0.001036 14, α(L)=0.0001335 19, α(M)=2.84E-5 4, α(N)=6.42E-6 9, α(O)=9.60E-7 13, α(P)=5.99E-8 8
1012.40	3-	23 fs 3	745.50 4	E1		1.83×10^-3	B(E1)(W.u.)=0.0092 +14-11, α=1.83E-3 3, α(K)=0.001571 22, α(L)=0.0002044 29, α(M)=4.35E-5 6, α(N)=9.82E-6 14, α(O)=1.466E-6 21, α(P)=9.04E-8 13
1012.40	3-	23 fs 3	930.37 3	E1		1.18×10^-3	B(E1)(W.u.)=0.0080 +12-9, α=1.18E-3 2, α(K)=0.001016 14, α(L)=0.0001310 18, α(M)=2.78E-5 4, α(N)=6.30E-6 9, α(O)=9.42E-7 13, α(P)=5.88E-8 8
1099.26	0+	0.92 ps 18	1017.23 10	[E2]		2.40×10^-3	B(E2)(W.u.)=11.4 +28-19, α=2.40E-3 3, α(K)=0.002035 28, α(L)=0.000286 4, α(M)=6.14E-5 9, α(N)=1.387E-5 19, α(O)=2.056E-6 29, α(P)=1.209E-7 17
1177.812	2+	4.3 ps 5	910.96 3	E2		0.00304	B(E2)(W.u.)=1.30 +17-14, α=0.00304 4, α(K)=0.00257 4, α(L)=0.000368 5, α(M)=7.92E-5 11, α(N)=1.789E-5 25, α(O)=2.64E-6 4, α(P)=1.523E-7 21
	2+	4.3 ps 5	1095.86 3	E0+M1+E2	-30 21	0.0052	B(E2)(W.u.)=0.71 9, α=0.0052 32, α(K)=0.001747 27, α(L)=0.000243 4, α(M)=5.20E-5 8, α(N)=1.175E-5 18, α(O)=1.746E-6 26, α(P)=1.040E-7 16
	2+	4.3 ps 5	1177.79 4	E2		1.78×10^-3	B(E2)(W.u.)=0.32 4, α=1.78E-3 3, α(K)=0.001510 21, α(L)=0.0002074 29, α(M)=4.44E-5 6, α(N)=1.004E-5 14, α(O)=1.494E-6 21, α(P)=8.99E-8 13
1181.26	5-		637.14 6	E1		2.54×10^-3	α=2.54×10^-3 4, α(K)=0.002174 30, α(L)=0.000285 4, α(M)=6.06E-5 8, α(N)=1.369E-5 19, α(O)=2.039E-6 29, α(P)=1.245E-7 17
1181.26	5-		914.44 3	E1		1.22×10^-3	α=1.22×10^-3 2, α(K)=0.001051 15, α(L)=0.0001355 19, α(M)=2.88E-5 4, α(N)=6.51E-6 9, α(O)=9.74E-7 14, α(P)=6.07E-8 9
1202.44	0+		1120.51 8	E2		1.96×10^-3	α=1.96×10^-3 3, α(K)=0.001669 23, α(L)=0.0002310 32, α(M)=4.95E-5 7, α(N)=1.119E-5 16, α(O)=1.663E-6 23, α(P)=9.93E-8 14
1286.29	2+		364.91 6	E1		0.00905	α=0.00905 13, α(K)=0.00773 11, α(L)=0.001039 15, α(M)=0.0002216 31, α(N)=5.00×10^-5 7, α(O)=7.37E-6 10, α(P)=4.31E-7 6
1286.29	2+		1204.30 4	M1+E2	+0.8 +15-6	0.0022	α=0.0022 4, α(K)=0.00189 33, α(L)=0.00025 4, α(M)=5.4×10^-5 9, α(N)=1.22E-5 20, α(O)=1.84E-6 30, α(P)=1.15E-7 22
1333.0	10+	2.45 ps 12	430.2 5	[E2]		0.01935	B(E2)(W.u.)=314 16, α=0.01935 28, α(K)=0.01569 23, α(L)=0.00286 4, α(M)=0.000629 9, α(N)=0.0001408 20, α(O)=1.995E-5 29, α(P)=8.89E-7 13
1337.60	4+	5.7 ps 18	794.9 2	[E2]		0.00411	B(E2)(W.u.)=0.64 +30-16, α=0.00411 6, α(K)=0.00346 5, α(L)=0.000511 7, α(M)=0.0001102 15, α(N)=2.486E-5 35, α(O)=3.65E-6 5, α(P)=2.043E-7 29
	4+	5.7 ps 18	1070.68 7	E0+M1+E2	50 GT	0.013	B(E2)(W.u.)=0.58 +31-16, α=0.013 7, α(K)=0.001831 26, α(L)=0.000255 4, α(M)=5.47E-5 8, α(N)=1.237E-5 17, α(O)=1.836E-6 26, α(P)=1.089E-7 15
	4+	5.7 ps 18	1255.55 7	E2		1.57×10^-3	B(E2)(W.u.)=0.32 +14-8, α=1.57E-3 2, α(K)=0.001330 19, α(L)=0.0001811 25, α(M)=3.87E-5 5, α(N)=8.76E-6 12, α(O)=1.306E-6 18, α(P)=7.92E-8 11
1440.04	2+	0.42 ps 3	1173.1 4	E2		1.79×10^-3	B(E2)(W.u.)=0.36 4, α=1.79E-3 3, α(K)=0.001522 21, α(L)=0.0002092 29, α(M)=4.48E-5 6, α(N)=1.013E-5 14, α(O)=1.507E-6 21, α(P)=9.06E-8 13
	2+	0.42 ps 3	1358.09 3	M1+E2	-19 10	1.37×10^-3	B(E2)(W.u.)=3.19 +23-27, α=1.37E-3 2, α(K)=0.001142 17, α(L)=0.0001540 22, α(M)=3.29E-5 5, α(N)=7.44E-6 11, α(O)=1.111E-6 16, α(P)=6.80E-8 10
	2+	0.42 ps 3	1440.05 10	E2		1.25×10^-3	B(E2)(W.u.)=1.93 14, α=1.25E-3 2, α(K)=0.001018 14, α(L)=0.0001365 19, α(M)=2.91E-5 4, α(N)=6.59E-6 9, α(O)=9.86E-7 14, α(P)=6.07E-8 8
1515.18	2-		1433.19 5	E1		7.01×10^-4	α=7.01×10^-4 10, α(K)=0.000466 7, α(L)=5.92E-5 8, α(M)=1.255E-5 18, α(N)=2.84E-6 4, α(O)=4.27E-7 6, α(P)=2.71E-8 4
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Mixing Ratio	Conversion Coefficient	Additional Data
1539.19	3+		1457.23 4	E2+M1	-7.5 10	1.23×10^-3	α=1.23×10^-3 2, α(K)=0.001003 14, α(L)=0.0001341 19, α(M)=2.86E-5 4, α(N)=6.48E-6 9, α(O)=9.69E-7 14, α(P)=5.98E-8 9
1584.50	3-		1317.68 4	E1		7.10×10^-4	α=7.10×10^-4 10, α(K)=0.000539 8, α(L)=6.86E-5 10, α(M)=1.455E-5 20, α(N)=3.29E-6 5, α(O)=4.94E-7 7, α(P)=3.13E-8 4
1584.50	3-		1502.6 2	E1		7.10×10^-4	α=7.10×10^-4 10, α(K)=0.000430 6, α(L)=5.45E-5 8, α(M)=1.157E-5 16, α(N)=2.62E-6 4, α(O)=3.93E-7 6, α(P)=2.502E-8 35
1664.82	4+		1398.00 6	M1(+E2)	-2.5 +10-25	0.00138	α=0.00138 9, α(K)=0.00114 8, α(L)=0.000153 10, α(M)=3.26×10^-5 21, α(N)=7.4E-6 5, α(O)=1.11E-6 8, α(P)=6.8E-8 5
1664.82	4+		1582.8 3	E2		1.10×10^-3	α=1.10×10^-3 2, α(K)=0.000851 12, α(L)=0.0001130 16, α(M)=2.409E-5 34, α(N)=5.45E-6 8, α(O)=8.17E-7 11, α(P)=5.07E-8 7
1673.90	2		661.47 9	E1,M1		0.007	α=0.007 4, α(K)=0.006 4, α(L)=7.E-4 5, α(M)=1.6E-4 10, α(N)=3.6E-5 24, α(O)=5.E-6 4, α(P)=3.4E-7 23
1673.90	2		752.57 10	E1,M1		0.0048	α=0.0048 30, α(K)=0.0041 26, α(L)=5.5×10^-4 35, α(M)=1.2E-4 7, α(N)=2.6E-5 17, α(O)=4.0E-6 25, α(P)=2.5E-7 16
1706.71	3+		1440.05 10	M1+E2		0.00149	α=0.00149 25, α(K)=0.00123 21, α(L)=0.000163 27, α(M)=3.5×10^-5 6, α(N)=7.9E-6 13, α(O)=1.18E-6 20, α(P)=7.5E-8 14
1706.71	3+		1624.87 12	M1+E2	+0.75 +25-10	0.00129	α=0.00129 5, α(K)=0.00099 4, α(L)=0.000130 5, α(M)=2.78×10^-5 11, α(N)=6.30E-6 26, α(O)=9.5E-7 4, α(P)=6.04E-8 28
1774.31	5-		1509.0 4	E1		7.11×10^-4	α=7.11×10^-4 10, α(K)=0.000427 6, α(L)=5.42E-5 8, α(M)=1.148E-5 16, α(N)=2.60E-6 4, α(O)=3.91E-7 5, α(P)=2.485E-8 35
1804.99	5+		1538.1 2	M1(+E2)		0.00134	α=0.00134 20, α(K)=0.00107 17, α(L)=0.000141 22, α(M)=3.0×10^-5 5, α(N)=6.8E-6 11, α(O)=1.03E-6 16, α(P)=6.5E-8 11
1815.04	2+,3		1733.11 15	E1,M1		0.00103	α=0.00103 26, α(K)=6.4×10^-4 30, α(L)=8.E-5 4, α(M)=1.8E-5 9, α(N)=4.0E-6 20, α(O)=6.1E-7 30, α(P)=3.9E-8 19
1825.9	12+	1.39 ps 9	492.9 5	[E2]		0.01333	B(E2)(W.u.)=282 +19-17, α=0.01333 19, α(K)=0.01093 16, α(L)=0.001880 27, α(M)=0.000411 6, α(N)=9.22E-5 13, α(O)=1.319E-5 19, α(P)=6.28E-7 9
1878.70	(2+)		1796.85 15	M1+E2	-1.5 +8-70	0.00106	α=0.00106 9, α(K)=0.00073 7, α(L)=9.6×10^-5 10, α(M)=2.05E-5 20, α(N)=4.6E-6 5, α(O)=7.0E-7 7, α(P)=4.4E-8 5
1890.45	1-		1808.29 19	E1		8.06×10^-4	α=8.06×10^-4 11, α(K)=0.000317 4, α(L)=3.99E-5 6, α(M)=8.46E-6 12, α(N)=1.917E-6 27, α(O)=2.88E-7 4, α(P)=1.843E-8 26
1890.45	1-		1890.80 16	E1		8.42×10^-4	α=8.42×10^-4 12, α(K)=0.000295 4, α(L)=3.71E-5 5, α(M)=7.87E-6 11, α(N)=1.781E-6 25, α(O)=2.68E-7 4, α(P)=1.715E-8 24
1986.59	3-		64.548 25	E1		0.893	α=0.893 13, α(K)=0.744 10, α(L)=0.1174 16, α(M)=0.02518 35, α(N)=0.00557 8, α(O)=0.000767 11, α(P)=3.39×10^-5 5
	3-		107.896 25	E1		0.2242	α=0.2242 31, α(K)=0.1892 27, α(L)=0.0276 4, α(M)=0.00590 8, α(N)=0.001315 18, α(O)=0.0001865 26, α(P)=9.27×10^-6 13
	3-		171.6 3	E1		0.0637	α=0.0637 9, α(K)=0.0541 8, α(L)=0.00757 11, α(M)=0.001617 24, α(N)=0.000362 5, α(O)=5.24×10^-5 8, α(P)=2.81E-6 4
2139.82	(1,2+)		166.06 3	E1		0.0696	α=0.0696 10, α(K)=0.0591 8, α(L)=0.00828 12, α(M)=0.001770 25, α(N)=0.000397 6, α(O)=5.73×10^-5 8, α(P)=3.06E-6 4
2443.5	1+		2361.5 5	[M1]		1.07×10^-3	B(M1)(W.u.)=0.014 9, α=1.07×10^-3 2, α(K)=0.000479 7, α(L)=6.21E-5 9, α(M)=1.320E-5 18, α(N)=3.00E-6 4, α(O)=4.52E-7 6, α(P)=2.92E-8 4
2443.5	1+		2443.5 5	M1		1.08×10^-3	B(M1)(W.u.)=0.033 8, α=1.08×10^-3 2, α(K)=0.000445 6, α(L)=5.76E-5 8, α(M)=1.225E-5 17, α(N)=2.78E-6 4, α(O)=4.20E-7 6, α(P)=2.71E-8 4
2556.56	1-		2474.5 3	[E1]		1.12×10^-3	B(E1)(W.u.)=0.0021 3, α=1.12E-3 2, α(K)=0.0001935 27, α(L)=2.422E-5 34, α(M)=5.13E-6 7, α(N)=1.162E-6 16, α(O)=1.750E-7 24, α(P)=1.126E-8 16
2556.56	1-		2556.6 3	E1		1.16×10^-3	B(E1)(W.u.)=9.4E-4 10, α=1.16E-3 2, α(K)=0.0001842 26, α(L)=2.303E-5 32, α(M)=4.88E-6 7, α(N)=1.105E-6 15, α(O)=1.664E-7 23, α(P)=1.072E-8 15
2618.03	1-		2536.08 15	[E1]		1.15×10^-3	B(E1)(W.u.)=0.0017 4, α=1.15E-3 2, α(K)=0.0001864 26, α(L)=2.332E-5 33, α(M)=4.94E-6 7, α(N)=1.118E-6 16, α(O)=1.685E-7 24, α(P)=1.085E-8 15
2618.03	1-		2617.92 20	E1		1.19×10^-3	B(E1)(W.u.)=0.0010 1, α=1.19E-3 2, α(K)=0.0001777 25, α(L)=2.221E-5 31, α(M)=4.70E-6 7, α(N)=1.065E-6 15, α(O)=1.605E-7 22, α(P)=1.034E-8 14
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Mixing Ratio	Conversion Coefficient	Additional Data
2743.7	1-		2661.7 5	[E1]		1.21×10^-3	B(E1)(W.u.)=0.0014 2, α=1.21E-3 2, α(K)=0.0001733 24, α(L)=2.166E-5 30, α(M)=4.59E-6 6, α(N)=1.039E-6 15, α(O)=1.565E-7 22, α(P)=1.009E-8 14
2743.7	1-		2743.7 5	E1		1.25×10^-3	B(E1)(W.u.)=7.4E-4 6, α=1.25E-3 2, α(K)=0.0001656 23, α(L)=2.068E-5 29, α(M)=4.38E-6 6, α(N)=9.92E-7 14, α(O)=1.495E-7 21, α(P)=9.64E-9 13
2825.3	1-		2743.3 5	[E1]		1.25×10^-3	B(E1)(W.u.)=7.1E-4 16, α=1.25E-3 2, α(K)=0.0001656 23, α(L)=2.069E-5 29, α(M)=4.38E-6 6, α(N)=9.92E-7 14, α(O)=1.495E-7 21, α(P)=9.64E-9 13
2825.3	1-		2825.3 5	E1		1.28×10^-3	B(E1)(W.u.)=3.5E-4 8, α=1.28E-3 2, α(K)=0.0001585 22, α(L)=1.979E-5 28, α(M)=4.19E-6 6, α(N)=9.49E-7 13, α(O)=1.430E-7 20, α(P)=9.23E-9 13
2842.8	1-		2761.1 5	[E1]		1.25×10^-3	B(E1)(W.u.)=8.5E-4 16, α=1.25E-3 2, α(K)=0.0001640 23, α(L)=2.049E-5 29, α(M)=4.34E-6 6, α(N)=9.82E-7 14, α(O)=1.480E-7 21, α(P)=9.55E-9 13
2842.8	1-		2842.6 4	E1		1.29×10^-3	B(E1)(W.u.)=5.6E-4 7, α=1.29E-3 2, α(K)=0.0001571 22, α(L)=1.961E-5 27, α(M)=4.15E-6 6, α(N)=9.40E-7 13, α(O)=1.417E-7 20, α(P)=9.14E-9 13
2882.0	1-		2800.0 5	[E1]		1.27×10^-3	B(E1)(W.u.)=3.4E-4 16, α=1.27E-3 2, α(K)=0.0001607 22, α(L)=2.006E-5 28, α(M)=4.25E-6 6, α(N)=9.62E-7 13, α(O)=1.449E-7 20, α(P)=9.35E-9 13
2882.0	1-		2882.0 5	E1		1.31×10^-3	B(E1)(W.u.)=2.5E-4 8, α=1.31E-3 2, α(K)=0.0001539 22, α(L)=1.921E-5 27, α(M)=4.07E-6 6, α(N)=9.21E-7 13, α(O)=1.388E-7 19, α(P)=8.96E-9 13
2907.3	1+		2825.3 5	[M1]		1.14×10^-3	B(M1)(W.u.)=0.019 6, α=1.14×10^-3 2, α(K)=0.000326 5, α(L)=4.21E-5 6, α(M)=8.95E-6 13, α(N)=2.030E-6 28, α(O)=3.06E-7 4, α(P)=1.982E-8 28
2907.3	1+		2907.3 5	M1		1.16×10^-3	B(M1)(W.u.)=0.033 7, α=1.16×10^-3 2, α(K)=0.000307 4, α(L)=3.96E-5 6, α(M)=8.42E-6 12, α(N)=1.909E-6 27, α(O)=2.88E-7 4, α(P)=1.865E-8 26
3091.5	1+		3009.5 5	[M1]		1.18×10^-3	B(M1)(W.u.)=0.045 6, α=1.18×10^-3 2, α(K)=0.000286 4, α(L)=3.68E-5 5, α(M)=7.82E-6 11, α(N)=1.774E-6 25, α(O)=2.68E-7 4, α(P)=1.733E-8 24
3091.5	1+		3091.5 5	M1		1.21×10^-3	B(M1)(W.u.)=0.084 8, α=1.21×10^-3 2, α(K)=0.000270 4, α(L)=3.47E-5 5, α(M)=7.39E-6 10, α(N)=1.676E-6 23, α(O)=2.530E-7 35, α(P)=1.638E-8 23
3117.0	1+		3035.0 5	[M1]		1.19×10^-3	B(M1)(W.u.)=0.033 5, α=1.19×10^-3 2, α(K)=0.000281 4, α(L)=3.61E-5 5, α(M)=7.68E-6 11, α(N)=1.742E-6 24, α(O)=2.63E-7 4, α(P)=1.702E-8 24
3117.0	1+		3117.0 5	M1		1.21×10^-3	B(M1)(W.u.)=0.058 7, α=1.21×10^-3 2, α(K)=0.000265 4, α(L)=3.42E-5 5, α(M)=7.26E-6 10, α(N)=1.647E-6 23, α(O)=2.487E-7 35, α(P)=1.610E-8 23
3193.42	1+		3111.2 5	[M1]		1.21×10^-3	B(M1)(W.u.)=0.092 9, α=1.21×10^-3 2, α(K)=0.000266 4, α(L)=3.43E-5 5, α(M)=7.29E-6 10, α(N)=1.653E-6 23, α(O)=2.497E-7 35, α(P)=1.616E-8 23
3193.42	1+		3193.4 5	M1		1.23×10^-3	B(M1)(W.u.)=0.150 11, α=1.23×10^-3 2, α(K)=0.0002524 35, α(L)=3.25E-5 5, α(M)=6.90E-6 10, α(N)=1.565E-6 22, α(O)=2.363E-7 33, α(P)=1.530E-8 21
3371.1	1+		3289.1 5	[M1]		1.26×10^-3	B(M1)(W.u.)=0.019 7, α=1.26×10^-3 2, α(K)=0.0002375 33, α(L)=3.05E-5 4, α(M)=6.49E-6 9, α(N)=1.471E-6 21, α(O)=2.221E-7 31, α(P)=1.439E-8 20
3371.1	1+		3371.1 5	M1		1.29×10^-3	B(M1)(W.u.)=0.027 7, α=1.29×10^-3 2, α(K)=0.0002258 32, α(L)=2.90E-5 4, α(M)=6.16E-6 9, α(N)=1.397E-6 20, α(O)=2.110E-7 30, α(P)=1.367E-8 19
3492.4	1+		3410.4 5	[M1]		1.30×10^-3	B(M1)(W.u.)=0.008 5, α=1.30×10^-3 2, α(K)=0.0002205 31, α(L)=2.83E-5 4, α(M)=6.01E-6 8, α(N)=1.364E-6 19, α(O)=2.060E-7 29, α(P)=1.334E-8 19
3492.4	1+		3492.4 5	M1		1.32×10^-3	B(M1)(W.u.)=0.018 7, α=1.32×10^-3 2, α(K)=0.0002100 29, α(L)=2.69E-5 4, α(M)=5.72E-6 8, α(N)=1.299E-6 18, α(O)=1.961E-7 27, α(P)=1.271E-8 18
3621.7	1+		3539.7 5	[M1]		1.33×10^-3	B(M1)(W.u.)=0.019 8, α=1.33×10^-3 2, α(K)=0.0002044 29, α(L)=2.62E-5 4, α(M)=5.57E-6 8, α(N)=1.263E-6 18, α(O)=1.907E-7 27, α(P)=1.236E-8 17
3621.7	1+		3621.7 5	M1		1.36×10^-3	B(M1)(W.u.)=0.036 11, α=1.36×10^-3 2, α(K)=0.0001951 27, α(L)=2.500E-5 35, α(M)=5.31E-6 7, α(N)=1.205E-6 17, α(O)=1.819E-7 25, α(P)=1.179E-8 17
3826.7	1-		3744.7 5	[E1]		1.66×10^-3	B(E1)(W.u.)=0.0012 3, α=1.66E-3 2, α(K)=0.0001054 15, α(L)=1.310E-5 18, α(M)=2.77E-6 4, α(N)=6.28E-7 9, α(O)=9.47E-8 13, α(P)=6.13E-9 9
3826.7	1-		3826.7 5	E1		1.70×10^-3	B(E1)(W.u.)=4.5E-4 9, α=1.70E-3 2, α(K)=0.0001023 14, α(L)=1.270E-5 18, α(M)=2.69E-6 4, α(N)=6.09E-7 9, α(O)=9.18E-8 13, α(P)=5.95E-9 8
6465.2	1-	4.3 fs 21	5025 3	[E1]		2.09×10^-3	B(E1)(W.u.)=8E-6 +9-4, α=2.09E-3 3, α(K)=7.03E-5 10, α(L)=8.70E-6 12, α(M)=1.840E-6 26, α(N)=4.17E-7 6, α(O)=6.29E-8 9, α(P)=4.08E-9 6
	1-	4.3 fs 21	5263 3	E1		2.15×10^-3	B(E1)(W.u.)=1.0E-5 +8-4, α=2.15E-3 3, α(K)=6.61E-5 9, α(L)=8.17E-6 11, α(M)=1.728E-6 24, α(N)=3.92E-7 5, α(O)=5.91E-8 8, α(P)=3.84E-9 5
	1-	4.3 fs 21	5287 3	E1		2.16×10^-3	B(E1)(W.u.)=1.1E-5 +10-5, α=2.16E-3 3, α(K)=6.57E-5 9, α(L)=8.12E-6 11, α(M)=1.718E-6 24, α(N)=3.89E-7 5, α(O)=5.87E-8 8, α(P)=3.81E-9 5
	1-	4.3 fs 21	5366 3	E1		2.18×10^-3	B(E1)(W.u.)=6.0E-5 +49-20, α=2.18E-3 3, α(K)=6.44E-5 9, α(L)=7.96E-6 11, α(M)=1.684E-6 24, α(N)=3.82E-7 5, α(O)=5.76E-8 8, α(P)=3.74E-9 5
	1-	4.3 fs 21	5544 3				α(K)=6.17×10^-5 9, α(L)=7.62E-6 11, α(M)=1.612E-6 23, α(N)=3.65E-7 5, α(O)=5.51E-8 8, α(P)=3.58E-9 5
	1-	4.3 fs 21	6383 3	E1+M2	0.081 18		B(E1)(W.u.)=5.3E-5 +43-18, B(M2)(W.u.)=0.039 +43-19
	1-	4.3 fs 21	6465 3	E1			B(E1)(W.u.)=8E-5 +6-3

The data on Eγ and Iγ values and J^π assignments are primarily from the ¹⁵⁴Pm β^- decays (1.73~min and 2.68~min) (1971Da28,1974Ya07,1993GrZY) and the (n,n’γ) reaction (2006De19).

Levels: In the Inelastic Scattering and (n,n’γ) data sets, a number of levels are shown which are not included in this Adopted Levels data set. For a listing of those levels, see those source data sets.

Levels: 2006De19, in (n,n’γ), do not confirm the population of levels at 1104, 1120, 1295, 1365 and 1371~keV, if they have J|<5. see, also, the Inelastic Scattering Data Set.

Gammas: The unplaced γ’s are not given here, see ¹⁵⁴Pm γ- decay (1.73 m and 2.68 m) and ¹⁵⁴Sm(n,n’γ).

Gammas: Above 2430 the B(E1)(W.u.) and B(M1)(W.u.) values are deduced by the evaluator from the B(E1)|^ and B(M1)|^ values in the ¹⁵⁴Sm(γ,γ’),(e,e’) dataset

Q-value: S(2n)=13835.2 8, S(2p)=16884 24 (2021Wa16)

Q(β-)=-717.2 keV 11	S(n)= 7966.8 keV 8	S(p)= 9097 keV 9	Q(α)= -1200.5 keV 11
Reference: 2021WA16

References:
A	¹⁵⁴Pm β^- decay (2.68 M)	B	¹⁵⁴Pm β^- decay (1.73 M)
C	¹⁵⁴Eu ε decay	D	¹⁵²Sm(t,p)
E	¹⁵⁴Sm(γ,γ’),(E,E’)	F	Coulomb Excitation
G	¹⁵⁴Sm(n,n’γ)	H	Inelastic scattering

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 E F G H	0+	STABLE
81.981 15	A B C D E F G H	2+	3.02 ns 4	81.990 18	100	E2	0.0	0+
266.817 22	A B C E F G H	4+	172 ps 4	184.810 25	100	E2	81.981	2+
544.10 4	A E F G H	6+	22.7 ps 6	277.34 4	100	E2	266.817	4+
902.75 19	F G	8+	5.9 ps 3	358.8 2	100	E2	544.10	6+
921.345 19	A B E F G H	1-	21 fs 1	839.36 2 921.33 3	100 3 68 2	E1 E1	81.981 0.0	2+ 0+
1012.40 3	A B F G H	3-	23 fs 3	745.50 4 930.37 3	59.0 18 100 1	E1 E1	266.817 81.981	4+ 2+
1099.26 5	B D E F G H	0+	0.92 ps 18	1017.23 10 1099.3?	100.0 16	[E2] E0	81.981 0.0	2+ 0+
1177.812 21	A B E F G H	2+	4.3 ps 5	910.96 3 1095.86 3 1177.79 4	72.4 19 100.0 19 65.2 14	E2 E0+M1+E2 E2	266.817 81.981 0.0	4+ 2+ 0+
1181.26 4	F G H	5-		637.14 6 914.44 3	35 100 2	E1 E1	544.10 266.817	6+ 4+
1202.44 6	B D E G H	0+		281.01 9 1120.51 8	100 21 79 2	E2	921.345 81.981	1- 2+
1286.29 4	A B D G	2+		274.0 10 364.91 6 1019.40 20 1204.30 4 1286.8 5	34 1 52 6 54.1 17 100 10 6.9 10	E1 M1+E2	1012.40 921.345 266.817 81.981 0.0	3- 1- 4+ 2+ 0+
1333.0 9	F G	10+	2.45 ps 12	430.2 5	100	[E2]	902.75	8+
1337.60 5	F G H	4+	5.7 ps 18	794.9 2 1070.68 7 1255.55 7	20.7 18 83.0 28 100.0 21	[E2] E0+M1+E2 E2	544.10 266.817 81.981	6+ 4+ 2+
1430.93 14	F G	7-		528.8 4 886.75 14	30 4 100 6		902.75 544.10	8+ 6+
1440.04 3	F G H	2+	0.42 ps 3	1173.1 4 1358.09 3 1440.05 10	5.4 4 100.0 22 80.4 21	E2 M1+E2 E2	266.817 81.981 0.0	4+ 2+ 0+
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
1472.16 12	A G	(4+)		460.0 3 1205.4 2	34 100 18		1012.40 266.817	3- 4+
1475	F	(6+)		931 1208			544.10 266.817	6+ 4+
1475.81 4	B G H	1-		554.3 4 1393.83 3 1476.0 6	5.6 11 100 2.5 7		921.345 81.981 0.0	1- 2+ 0+
1515.18 5	A B G H	2-		1433.19 5	100 3	E1	81.981	2+
1539.19 4	A F G H	3+		1272.34 7 1457.23 4	38.0 17 100 3	E2+M1	266.817 81.981	4+ 2+
1577	F	6+		674 1033 1310			902.75 544.10 266.817	8+ 6+ 4+
1584.50 5	A F G H	3-		45.5 1317.68 4 1502.6 2	100 3 20.0 16	E1 E1	1539.19 266.817 81.981	3+ 4+ 2+
1614.77 7	B			693.39 6	100		921.345	1-
1660.65 4	G	4-		1393.83 3	100		266.817	4+
1664.82 7	A F G H	4+		1398.00 6 1582.8 3	100 3 33.0 18	M1(+E2) E2	266.817 81.981	4+ 2+
1673.90 7	A B G	2		661.47 9 752.57 10	100 2 82 3	E1,M1 E1,M1	1012.40 921.345	3- 1-
1706.71 5	A F G H	3+		1440.05 10 1624.87 12	100 45 18	M1+E2 M1+E2	266.817 81.981	4+ 2+
1741	F	(8+)		1197			544.10	6+
1754.51 5	A B			742.2 3 833.4 3	85 100		1012.40 921.345	3- 1-
1755.67 4	A B E G	(3-)		315.5 3 742.90 6 834.05 20 1674.1 4	33 7 100 3 99 3 11.7 15		1440.04 1012.40 921.345 81.981	2+ 3- 1- 2+
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
1760	F	9-		857			902.75	8+
1764.4 4	B			1681.6 5 1764.9 4	60 100		81.981 0.0	2+ 0+
1774.31 8	A G H	5-		1230.16 7 1509.0 4	100 4 20 3	E1	544.10 266.817	6+ 4+
1804.99 10	A F G	5+		1261.0 1 1538.1 2	47 4 100 5	M1(+E2)	544.10 266.817	6+ 4+
1815.04 5	A F G H	2+,3		276.00 25 375.06 8 528.8 4 637.14 6 802.7 3 1548.6 2 1733.11 15	46 100 12 24 27 77 93	E1,M1	1539.19 1440.04 1286.29 1177.812 1012.40 266.817 81.981	3+ 2+ 2+ 2+ 3- 4+ 2+
1818.37 8	A G	(4+,5)		1274.33 19 1551.54 9	40 4 100 4		544.10 266.817	6+ 4+
1825.9 10	F	12+	1.39 ps 9	492.9 5	100	[E2]	1333.0	10+
1878.70 4	A G	(2+)		339.68 20 406.63 15 438.76 20 592.5 3 701.1 3 956.9 3 1611.97 25 1796.85 15 1878.3 5	25 23 79 45 21 76 9 46 100 6.2	M1+E2	1539.19 1472.16 1440.04 1286.29 1177.812 921.345 266.817 81.981 0.0	3+ (4+) 2+ 2+ 2+ 1- 4+ 2+ 0+
1890.45 11	B E G	1-		603.54 25 688.1 4 1808.29 19 1890.80 16	12 15 5 100 7 83 5	E1 E1	1286.29 1202.44 81.981 0.0	2+ 0+ 2+ 0+
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
1900	E			1820 1900			81.981 0.0	2+ 0+
1922.05 4	A E G	2+		584.4 6 909.7 3 1655.24 15 1840.44 18	19 4 21 100 6 98 6		1337.60 1012.40 266.817 81.981	4+ 3- 4+ 2+
1925.56 16	G			1658.73 15	100		266.817	4+
1945.61 6	A B G	(3-)		933.5 4 1024.40 8 1863.3 5	100 69 18		1012.40 921.345 81.981	3- 1- 2+
1973.76 5	B E G H	1-,2+		961.3 5 1891.8 3 1973.59 20	17 81 100		1012.40 81.981 0.0	3- 2+ 0+
1974	F	(6+)		1430 1707			544.10 266.817	6+ 4+
1986.59 4	A E G	3-		64.548 25 107.896 25 171.6 3 230.82 3 232.08 3 279.93 4 402.15 10 447.5 3 471.36 20 546.66 6 700.0 3 ? 974.0 4 ? 1719.74 25 1905.1 4	33 47 49 43 30 82 11 3.0 7.0 100 4.5 2.0 4.8 5.2	E1 E1 E1	1922.05 1878.70 1815.04 1755.67 1754.51 1706.71 1584.50 1539.19 1515.18 1440.04 1286.29 1012.40 266.817 81.981	2+ (2+) 2+,3 (3-) 3+ 3- 3+ 2- 2+ 2+ 3- 4+ 2+
2013.4 6	G H			675.8 6	100 20		1337.60	4+
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
2015.40 6	B G	(1-,2+)		837.4 1002.8 10 1933.5 3 2015.5 4	100 53 93 67		1177.812 1012.40 81.981 0.0	2+ 3- 2+ 0+
2062 4	H
2065.90 8	A	(3,4+)		143.74 15 247.75 15 359.16 8 526.7 4 1799.4 5 ?	12 17 100 7.1 3.7		1922.05 1818.37 1706.71 1539.19 266.817	2+ (4+,5) 3+ 3+ 4+
2069	F	(10+)		1166			902.75	8+
2069.07 4	B G	(2+)		95.2 3 ? 782.9 3 866.5 3 891.28 4 969.79 6 1057.0 5 1147.69 6 1801.6 5 1987.04 10 2069.04 8	0.5 2.5 5.3 71 56 4 1.0 100 6 1.4 14 2 20 2		1973.76 1286.29 1202.44 1177.812 1099.26 1012.40 921.345 266.817 81.981 0.0	1-,2+ 2+ 0+ 2+ 0+ 3- 1- 4+ 2+ 0+
2130 4	H
2131.82 6	B G	(2+)		62.62 6 ? 953.97 8 1032.55 8 1210.2 3 1865.7 5 2050.1 3	3.2 100 69 15 6.4 13		2069.07 1177.812 1099.26 921.345 266.817 81.981	(2+) 2+ 0+ 1- 4+ 2+
2139.82 4	B G	(1,2+)		124.43 4 166.06 3 194.29 6 384.5 3 465.8 3 524.2 3 624.6 4 664.20 14 700.0 3 853.1 5 ? 937.30 12 962.00 8 1040.7 5 1218.57 10 1873.6 8 ? 2057.76 6 2139.76 8	1.1 3.6 0.9 0.4 1.0 0.5 0.8 3.0 1.2 0.6 2.2 19.1 16 0.8 3.7 0.4 100 10 57	E1	2015.40 1973.76 1945.61 1755.67 1673.90 1614.77 1515.18 1475.81 1440.04 1286.29 1202.44 1177.812 1099.26 921.345 266.817 81.981 0.0	(1-,2+) 1-,2+ (3-) (3-) 2 2- 1- 2+ 2+ 0+ 2+ 0+ 1- 4+ 2+ 0+
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
2154.3?	F	7+
2163	F	11-		403? 830			1760 1333.0	9- 10+
2196.2 5 ?	B	(1,2+)		1096.9 5 ?	100		1099.26	0+
2232.8 4	A G	(3,4+)		526.0 4 2150.5 5 ?	100 14		1706.71 81.981	3+ 2+
2275 4	H
2288 4	H
2293.85 12	A G	(3,4+)		307.3 3 ? 371.7 3 ? 415.23 15 709.1 3 853.1 5 ? 2026.9 3 2211.9 3	27 ≤29 100 48 ≤60 57 48		1986.59 1922.05 1878.70 1584.50 1440.04 266.817 81.981	3- 2+ (2+) 3- 2+ 4+ 2+
2368.81 14	B G	(1,2+)		853.3 1082.0 5 1191.1 3 1447.4 3 ? 2287.0 3 2368.74 20	≤26 22 44 34 26 100		1515.18 1286.29 1177.812 921.345 81.981 0.0	2- 2+ 2+ 1- 2+ 0+
2373.0	F	14+		547.1			1825.9	12+
2421.4?	B	(1,2+)		2340.8 5 ? 2421.4 4 ?	100 87		81.981 0.0	2+ 0+
2428.48 11	B			2346.48 10	100		81.981	2+
2439	F	(12+)		1106			1333.0	10+
2443.5 4	E G	1+		2361.5 5 2443.5 5	38 24 100	[M1] M1	81.981 0.0	2+ 0+
2486 3 ?	E
2556.56 22	B E G	1-		2474.5 3 2556.6 3	100 48 6	[E1] E1	81.981 0.0	2+ 0+
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
2591.32 10	B G			917.0 5 1389.3 3 1670.16 25 2509.27 15 2591.14 20	13 25 19 100 39		1673.90 1202.44 921.345 81.981 0.0	2 0+ 1- 2+ 0+
2618.03 12	B E G	1-		2536.08 15 2617.92 20	100 67 12	[E1] E1	81.981 0.0	2+ 0+
2636	F	13-		473? 810			2163 1825.9	11- 12+
2721.28 24	B G	(1,2+)		2639.2 4 2721.3 3	41 100		81.981 0.0	2+ 0+
2743.7 4	E G	1-		2661.7 5 2743.7 5	100 58 8	[E1] E1	81.981 0.0	2+ 0+
2778.63 17	B E G	1		1022.4 4 1576.7 8 1856.3 4 2697.4 3 2778.6 3	33 36 36 27 100	D	1755.67 1202.44 921.345 81.981 0.0	(3-) 0+ 1- 2+ 0+
2793?	F	(14+)		967?			1825.9	12+
2825.3 5	E	1-		2743.3 5 2825.3 5	100 53 14	[E1] E1	81.981 0.0	2+ 0+
2842.8 4	B E	1-		2761.1 5 2842.6 4	100 71 10	[E1] E1	81.981 0.0	2+ 0+
2882.0 5	E	1-		2800.0 5 2882.0 5	100 79 26	[E1] E1	81.981 0.0	2+ 0+
2907.3 5	E	1+		2825.3 5 2907.3 5	52 13 100	[M1] M1	81.981 0.0	2+ 0+
2968.2	F	16+		595.2			2373.0	14+
3051.23 15	B			919.23 20 1576.7 8 1764.9 4 1873.6 8 2130.4 3 2968.9 4	100 41 55 24 72 45		2131.82 1475 1286.29 1177.812 921.345 81.981	(2+) (6+) 2+ 2+ 1- 2+
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
3091.5 5	E	1+		3009.5 5 3091.5 5	49 5 100	[M1] M1	81.981 0.0	2+ 0+
3117.0 5	E	1+		3035.0 5 3117.0 5	53 6 100	[M1] M1	81.981 0.0	2+ 0+
3193.42 17	B E H	1+		2015.5 4 3111.2 5 3193.4 5	71 57 100 8	[M1] M1	1177.812 81.981 0.0	2+ 2+ 0+
3339.5 5	E	1		3257.5 5 S 3339.5 5	≤21 100	D	81.981 0.0	2+ 0+
3365.9 5	E	1		3283.9 5 S 3365.9 5	≤21 100	D	81.981 0.0	2+ 0+
3371.1 5	E	1+		3289.1 5 3371.1 5	67 20 100	[M1] M1	81.981 0.0	2+ 0+
3426.4 5	E	1		3344.4 5 S 3426.4 5	≤21 100	D	81.981 0.0	2+ 0+
3492.4 5	E	1+		3410.4 5 3492.4 5	42 20 100	[M1] M1	81.981 0.0	2+ 0+
3609.3	F	18+		641.1			2968.2	16+
3621.7 5	E	1+		3539.7 5 3621.7 5	49 14 100	[M1] M1	81.981 0.0	2+ 0+
3745.8 5	E	1		3663.8 5 S 3745.8 5	≤17 100	D	81.981 0.0	2+ 0+
3759.8 5	E	1		3677.8 5 S 3759.8 5	≤28 100	D	81.981 0.0	2+ 0+
3801.3 5	E	1		3719.3 5 3801.3 4	93 23 100	D	81.981 0.0	2+ 0+
3826.7 5	E	1-		3744.7 5 3826.7 5	100 41 6	[E1] E1	81.981 0.0	2+ 0+
3836.7 5	E	1		3754.7 5 3836.7 5	85 30 100	D	81.981 0.0	2+ 0+
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
3844.0 5	E	1		3762.0 5 3844.0 5	112 40 100	D	81.981 0.0	2+ 0+
4020 10	E			3940 4020			81.981 0.0	2+ 0+
4240 10	E			4160 4240			81.981 0.0	2+ 0+
4295.7	F	20+		686.4			3609.3	18+
4300 10	E			4220 4300			81.981 0.0	2+ 0+
5027.9	F	22+		732.2			4295.7	20+
6465.2 10	E	1-	4.3 fs 21	3979 2 ? 4479 3 4543 3 4709 3 5025 3 5263 3 5287 3 5366 3 5544 3 6383 3 6465 3	10 2 0.3 10 2 4 3 5 3 7 1 8 2 45 1 8 2 67 1 100	[E1] E1 E1 E1 E1+M2 E1	2486 1986.59 1922.05 1755.67 1440.04 1202.44 1177.812 1099.26 921.345 81.981 0.0	3- 2+ (3-) 2+ 0+ 2+ 0+ 1- 2+ 0+

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 1 - Kπ=0⁺ ground-state band.
0.0	0+	STABLE
81.981 15	2+	3.02 ns 4	81.990 18	100	E2	0.0	0+
266.817 22	4+	172 ps 4	184.810 25	100	E2	81.981	2+
544.10 4	6+	22.7 ps 6	277.34 4	100	E2	266.817	4+
902.75 19	8+	5.9 ps 3	358.8 2	100	E2	544.10	6+
1333.0 9	10+	2.45 ps 12	430.2 5	100	[E2]	902.75	8+
1825.9 10	12+	1.39 ps 9	492.9 5	100	[E2]	1333.0	10+
2373.0	14+		547.1			1825.9	12+
2968.2	16+		595.2			2373.0	14+
3609.3	18+		641.1			2968.2	16+
4295.7	20+		686.4			3609.3	18+
5027.9	22+		732.2			4295.7	20+
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 2 - Kπ=0- octupole-vibrational band.
921.345 19	1-	21 fs 1
1012.40 3	3-	23 fs 3	745.50 4 930.37 3	59.0 18 100 1	E1 E1	266.817 81.981	4+ 2+
1181.26 4	5-		637.14 6 914.44 3	35 100 2	E1 E1	544.10 266.817	6+ 4+
1430.93 14	7-		528.8 4 886.75 14	30 4 100 6		902.75 544.10	8+ 6+
1760	9-		857			902.75	8+
2163	11-		403? 830			1760 1333.0	9- 10+
2636	13-		473? 810			2163 1825.9	11- 12+
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 3 - First excited K^π=0⁺ band. α=13.60 keV, B=-84 eV, computed
1099.26 5	0+	0.92 ps 18
1177.812 21	2+	4.3 ps 5	910.96 3 1095.86 3 1177.79 4	72.4 19 100.0 19 65.2 14	E2 E0+M1+E2 E2	266.817 81.981 0.0	4+ 2+ 0+
1337.60 5	4+	5.7 ps 18	794.9 2 1070.68 7 1255.55 7	20.7 18 83.0 28 100.0 21	[E2] E0+M1+E2 E2	544.10 266.817 81.981	6+ 4+ 2+
1577	6+		674 1033 1310			902.75 544.10 266.817	8+ 6+ 4+
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 4 - Kπ=2⁺ γ-vibrational band.
1440.04 3	2+	0.42 ps 3
1539.19 4	3+		1272.34 7 1457.23 4	38.0 17 100 3	E2+M1	266.817 81.981	4+ 2+
1664.82 7	4+		1398.00 6 1582.8 3	100 3 33.0 18	M1(+E2) E2	266.817 81.981	4+ 2+
1804.99 10	5+		1261.0 1 1538.1 2	47 4 100 5	M1(+E2)	544.10 266.817	6+ 4+
1974	(6+)		1430 1707			544.10 266.817	6+ 4+
2154.3	7+
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 5 - Second excited K^π=0⁺ band. α=14.18 keV, B=-35 eV, computed
1202.44 6	0+
1286.29 4	2+		274.0 10 364.91 6 1019.40 20 1204.30 4 1286.8 5	34 1 52 6 54.1 17 100 10 6.9 10	E1 M1+E2	1012.40 921.345 266.817 81.981 0.0	3- 1- 4+ 2+ 0+
1472.16 12	(4+)		460.0 3 1205.4 2	34 100 18		1012.40 266.817	3- 4+
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 6 - Kπ=1- octupole-vibrational band.
1475.81 4	1-
1515.18 5	2-		1433.19 5	100 3	E1	81.981	2+
1584.50 5	3-		45.5 1317.68 4 1502.6 2	100 3 20.0 16	E1 E1	1539.19 266.817 81.981	3+ 4+ 2+
1660.65 4	4-		1393.83 3	100		266.817	4+
1774.31 8	5-		1230.16 7 1509.0 4	100 4 20 3	E1	544.10 266.817	6+ 4+

E(level)	J^π(level)	T_1/2(level)	Comments
0.0	0+	STABLE	The change in the nuclear charge radius between ¹⁵²Sm and ¹⁵⁴Sm can given by either \|l or Δ<r²> where \|l = Δ<r²> + c₁ Δ<r⁴> + c₂ Δ<r⁶>. \|l=0.219 fm² 10 with the corresponding values Δ<r²>=0.231 fm² 11, Δ<r⁴>=0.00187 fm⁴ 9, and Δ<r⁶>=0.0000126 fm⁶ 7 from 1990Wa25. Other values: \|l=0.221 13 (1973Le16), 0.220 11 (1981Ne01) and 0.222 11 (1997Ji06) and Δ<r²>=0.215 16 (1974He28), 0.250 14 (1979Po04 as quoted in 1983La06), 0.230 12 (1980Br15), 0.230 (1985Al06), 0.226 12 (1987Bo58), and 0.222 (1990En01). Other: 1989GaZO, 1995Ne12, and 1996La03. Δ<r²> for the neutron distribution is 0.27 4 (1983Ja06). E(level): The change in the nuclear charge radius between ¹⁵²Sm and ¹⁵⁴Sm can given by either \|l or Δ<r²> where \|l = Δ<r²> + c₁ Δ<r⁴> + c₂ Δ<r⁶>. \|l=0.219 fm² 10 with the corresponding values Δ<r²>=0.231 fm² 11, Δ<r⁴>=0.00187 fm⁴ 9, and Δ<r⁶>=0.0000126 fm⁶ 7 from 1990Wa25. Other values: \|l=0.221 13 (1973Le16), 0.220 11 (1981Ne01) and 0.222 11 (1997Ji06) and Δ<r²>=0.215 16 (1974He28), 0.250 14 (1979Po04 as quoted in 1983La06), 0.230 12 (1980Br15), 0.230 (1985Al06), 0.226 12 (1987Bo58), and 0.222 (1990En01). Other: 1989GaZO, 1995Ne12, and 1996La03. Δ<r²> for the neutron distribution is 0.27 4 (1983Ja06). Kπ=0⁺ ground-state band.
81.981	2+	3.02 ns 4	Q=-1.87 4, μ=+0.78 4 The isomer shift is Δ<r²>=0.0008 fm² 5 (1974Ka38) and 0.0012 fm² 9 [computed from Δ<r²>/<r²>(0) of 1970Wh02 and <r²>(0) of 1979Po04]. E(level): The isomer shift is Δ<r²>=0.0008 fm² 5 (1974Ka38) and 0.0012 fm² 9 [computed from Δ<r²>/<r²>(0) of 1970Wh02 and <r²>(0) of 1979Po04]. Kπ=0⁺ ground-state band.
266.817	4+	172 ps 4	Q=-2.2 8, μ=+1.35 15 E(level): Kπ=0⁺ ground-state band.
544.10	6+	22.7 ps 6	μ=+1.90 28 E(level): Kπ=0⁺ ground-state band.
902.75	8+	5.9 ps 3	μ=2.8 4 E(level): Kπ=0⁺ ground-state band.
921.345	1-	21 fs 1	E(level): Kπ=0- octupole-vibrational band.
1012.40	3-	23 fs 3	B(E3)=0.10 2 E(level): Kπ=0- octupole-vibrational band.
1099.26	0+	0.92 ps 18	XREF: d(1117). E(level): First excited K^π=0⁺ band. α=13.60 keV, B=-84 eV, computed.
1177.812	2+	4.3 ps 5	E(level): First excited K^π=0⁺ band. α=13.60 keV, B=-84 eV, computed.
1181.26	5-		E(level): Kπ=0- octupole-vibrational band.
1202.44	0+		XREF: d(1218). E(level): Second excited K^π=0⁺ band. α=14.18 keV, B=-35 eV, computed.
1286.29	2+		XREF: d(1299). E(level): Second excited K^π=0⁺ band. α=14.18 keV, B=-35 eV, computed.
1333.0	10+	2.45 ps 12	μ=3.2 8 E(level): Kπ=0⁺ ground-state band.
1337.60	4+	5.7 ps 18	E(level): First excited K^π=0⁺ band. α=13.60 keV, B=-84 eV, computed.
1430.93	7-		E(level): Kπ=0- octupole-vibrational band.
1440.04	2+	0.42 ps 3	E(level): Kπ=2⁺ γ-vibrational band.
1472.16	(4+)		E(level): Second excited K^π=0⁺ band. α=14.18 keV, B=-35 eV, computed.
1475	(6+)		E(level): Proposed as a member of a band by 1992Mo20 in Coul. ex., but the existence of the suggested bandhead (at 1371~keV) is questionable, and the band characteristics are not otherwise clear.
1475.81	1-		E(level): Kπ=1- octupole-vibrational band.
1515.18	2-		XREF: H(1522). E(level): Kπ=1- octupole-vibrational band.
1539.19	3+		XREF: H(1547). E(level): Kπ=2⁺ γ-vibrational band.
1577	6+		E(level): First excited K^π=0⁺ band. α=13.60 keV, B=-84 eV, computed.
1584.50	3-		E(level): Kπ=1- octupole-vibrational band.
1660.65	4-		E(level): Kπ=1- octupole-vibrational band.
1664.82	4+		E(level): Kπ=2⁺ γ-vibrational band.
E(level)	J^π(level)	T_1/2(level)	Comments
1741	(8+)		E(level): Proposed as a member of a band by 1992Mo20 in Coul. ex., but the existence of the suggested bandhead (at 1371~keV) is questionable, and the band characteristics are not otherwise clear.
1760	9-		E(level): Kπ=0- octupole-vibrational band.
1774.31	5-		E(level): Kπ=1- octupole-vibrational band.
1804.99	5+		E(level): Kπ=2⁺ γ-vibrational band.
1825.9	12+	1.39 ps 9	E(level): Kπ=0⁺ ground-state band.
1974	(6+)		E(level): Kπ=2⁺ γ-vibrational band.
2013.4			XREF: H(2012).
2015.40	(1-,2+)		XREF: γ(?).
2069	(10+)		E(level): Proposed as a member of a band by 1992Mo20 in Coul. ex., but the existence of the suggested bandhead (at 1371~keV) is questionable, and the band characteristics are not otherwise clear.
2069.07	(2+)		XREF: γ(?).
2139.82	(1,2+)		XREF: γ(?).
2154.3	7+		E(level): Kπ=2⁺ γ-vibrational band.
2163	11-		E(level): Kπ=0- octupole-vibrational band.
2232.8	(3,4+)		XREF: γ(?).
2373.0	14+		E(level): Kπ=0⁺ ground-state band.
2439	(12+)		E(level): Proposed as a member of a band by 1992Mo20 in Coul. ex., but the existence of the suggested bandhead (at 1371~keV) is questionable, and the band characteristics are not otherwise clear.
2636	13-		E(level): Kπ=0- octupole-vibrational band.
2793	(14+)		E(level): Proposed as a member of a band by 1992Mo20 in Coul. ex., but the existence of the suggested bandhead (at 1371~keV) is questionable, and the band characteristics are not otherwise clear.
2968.2	16+		E(level): Kπ=0⁺ ground-state band.
3609.3	18+		E(level): Kπ=0⁺ ground-state band.
4295.7	20+		E(level): Kπ=0⁺ ground-state band.
5027.9	22+		E(level): Kπ=0⁺ ground-state band.

E(level)	E(gamma)	Comments
921.345	921.33	M(γ): From γ(θ) and linear polarization measurements in (γ,γ’) (1976Me17).
1177.812	910.96	I(γ): weighted average of 75 6 from (n,n’γ) and 72.1 19 from Coulomb excitation
	1095.86	I(γ): weighted average of 100.0 19 from (n,n’γ) and 100.0 19 from Coulomb excitation
	1177.79	I(γ): weighted average of 65.8 14 from (n,n’γ) and 64.0 19 from Coulomb excitation. Other value: 74 4 (β^- decay (1.73 m))
1181.26	637.14	E(γ): Multiply placed with intensity suitably divided I(γ): Multiply placed with intensity suitably divided
1337.60	794.9	I(γ): 20.7 18 from Coulomb excitation. Other value: 31.9 21 from (n,n’γ). Value from Coulomb excitation preferred because the branching ratios (and B(E2)(W.u.)\|_ values) measured by 2012Mo23 for the γ’s decaying this level give consistent T_1/2 values indicating that the branching ratio from (n,n’γ) is discrepant
	1070.68	I(γ): weighted average of 83.7 28 from (n,n’γ) and 80 6 from Coulomb excitation
	1255.55	I(γ): weighted average of 100.0 21 from (n,n’γ) and 100 4 from Coulomb excitation
1430.93	528.8	E(γ): Multiply placed with intensity suitably divided I(γ): Multiply placed with intensity suitably divided
1440.04	1173.1	I(γ): 5.4 4 from Coulomb excitation. Other value: 8.0 9 from (n,n’γ). Value from Coulomb excitation preferred because the branching ratios (and B(E2)(W.u.)\|_ values) measured by 2012Mo23 for the γ’s decaying this level give consistent T_1/2 values indicating that the branching ratio from (n,n’γ) is discrepant
	1358.09	I(γ): weighted average of 100.0 22 from (n,n’γ) and 100.0 24 from Coulomb excitation
	1440.05	E(γ): Multiply placed with intensity suitably divided I(γ): from Coulomb excitation. Multiply placed with intensity suitably divided
1475.81	1393.83	E(γ): Multiply placed with intensity suitably divided I(γ): Multiply placed with intensity suitably divided
1660.65	1393.83	E(γ): Multiply placed with intensity suitably divided I(γ): Multiply placed with intensity suitably divided
1673.90	752.57	I(γ): From (n,n’γ); Iγ=121 from ¹⁵⁴Pm β^- decay (1.73 m).
1706.71	1440.05	E(γ): Multiply placed with intensity suitably divided I(γ): Multiply placed with intensity suitably divided
1804.99	1538.1	M(γ): From (n,n’γ), δ=0.00~2 or -9~2 (2006De19).
1815.04	528.8	E(γ): From 2006De19, (n,n’γ).. Multiply placed with intensity suitably divided I(γ): Multiply placed with intensity suitably divided
	637.14	E(γ): From 2006De19, (n,n’γ).. Multiply placed with intensity suitably divided I(γ): Multiply placed with intensity suitably divided
	1733.11	M(γ): From 2006De19 (n,n’γ)
1878.70	956.9	E(γ): From (n,n’γ). In ¹⁵⁴Pm β^- decay (2.68~min), a questionable γ with Eγ=958.1 4 is shown. I(γ): From Iγ(956.9γ)/Iγ(1796.8γ) in (n,n’γ) and Iγ(1796.8γ). from ¹⁵⁴Pm β^- decay (2.68~min), Iγ\|<12, but γ is shown as questionable.
1922.05	909.7	E(γ): From ¹⁵⁴Pm β^- decay (2.68~min). γ not reported by 2006De19 in (n,n’γ). I(γ): From Iγ(909.7γ)/Iγ(1655γ) in ¹⁵⁴Pm β^- decay (2.68~min) and Iγ(1655γ).
1945.61	933.5	E(γ): γ not reported by 2006De19, (n,n’γ).
1945.61	1863.3	I(γ): From Iγ(1863γ)/Iγ(1024γ) in (n,n’γ) and Iγ(1024γ). In ¹⁵⁴Pm β^- decay (1.73~min), Iγ\|<150.
1986.59	64.548	M(γ): From α_K(exp) in ¹⁵⁴Pm β^- decay (2.68 m).
	107.896	M(γ): From α_K(exp) in ¹⁵⁴Pm β^- decay (2.68 m).
	171.6	M(γ): From α_K(exp) in ¹⁵⁴Pm β^- decay (2.68 m).
E(level)	E(gamma)	Comments
2015.40	2015.5	E(γ): Multiply placed with undivided intensity I(γ): Multiply placed with undivided intensity
2139.82	166.06	M(γ): From α_K(exp) in ¹⁵⁴Pm β^- decay (1.73 m).
2196.2	1096.9	E(γ): The existence and placement of this γ are doubtful.
2443.5	2443.5	M(γ): From γ(θ) and γ-branching considerations in (γ,γ’) (1993Zi05)
2556.56	2556.6	I(γ): From (γ,γ’); other: Iγ(2556)/Iγ(2474)=0.74 from ¹⁵⁴Pm β^- decay (1.73 m). M(γ): From γ(θ) and γ-branching considerations in (γ,γ’) (1993Zi05)
2618.03	2617.92	I(γ): From (γ,γ’); other: Iγ(2617)/Iγ(2536)=0.76 from ¹⁵⁴Pm β^- decay (1.73 m). M(γ): From γ(θ) and γ-branching considerations in (γ,γ’) (1993Zi05)
2743.7	2743.7	M(γ): From γ(θ) and γ-branching considerations in (γ,γ’) (1993Zi05)
2778.63	2697.4	I(γ): From ¹⁵⁴Pm β^- decay (1.73 m); other: \|< 17 from (γ,γ’).
2825.3	2825.3	M(γ): From γ(θ) and γ-branching considerations in (γ,γ’) (1993Zi05)
2842.8	2842.6	I(γ): From (γ,γ’); other: Iγ(2761)/Iγ(2842)=0.87 from ¹⁵⁴Pm β^- decay (1.73 m). M(γ): From γ(θ) and γ-branching considerations in (γ,γ’) (1993Zi05)
2882.0	2882.0	M(γ): From γ(θ) and γ-branching considerations in (γ,γ’) (1993Zi05)
2907.3	2907.3	M(γ): From γ(θ) and γ-branching considerations in (γ,γ’) (1993Zi05)
3091.5	3091.5	M(γ): From γ(θ) and γ-branching considerations in (γ,γ’) (1993Zi05)
3117.0	3117.0	M(γ): From γ(θ) and γ-branching considerations in (γ,γ’) (1993Zi05)
3193.42	2015.5	E(γ): Multiply placed with undivided intensity I(γ): Multiply placed with undivided intensity
	3111.2	E(γ): Simple average of 3111.4 5 (γ,γ’) and 3110.9 5 (¹⁵⁴Pm β^- decay (1.73 m)).
	3193.4	E(γ): From (γ,γ’); γ not reported in ¹⁵⁴Pm β^- decay (1.73 m). I(γ): Computed from Iγ(3111) and Iγ(3111)/Iγ(3193)=0.57 4 (from (γ,γ’)). M(γ): From γ(θ) and γ-branching considerations in (γ,γ’) (1993Zi05)
3339.5	3339.5	M(γ): From γ(θ) and γ-branching considerations in (γ,γ’) (1993Zi05)
3365.9	3365.9	M(γ): From γ(θ) and γ-branching considerations in (γ,γ’) (1993Zi05)
3371.1	3371.1	M(γ): From γ(θ) and γ-branching considerations in (γ,γ’) (1993Zi05)
3426.4	3426.4	M(γ): From γ(θ) and γ-branching considerations in (γ,γ’) (1993Zi05)
3492.4	3492.4	M(γ): From γ(θ) and γ-branching considerations in (γ,γ’) (1993Zi05)
3621.7	3621.7	M(γ): From γ(θ) and γ-branching considerations in (γ,γ’) (1993Zi05)
3745.8	3745.8	M(γ): From γ(θ) and γ-branching considerations in (γ,γ’) (1993Zi05)
3759.8	3759.8	M(γ): From γ(θ) and γ-branching considerations in (γ,γ’) (1993Zi05)
E(level)	E(gamma)	Comments
3801.3	3801.3	M(γ): From γ(θ) and γ-branching considerations in (γ,γ’) (1993Zi05)
3826.7	3826.7	M(γ): From γ(θ) and γ-branching considerations in (γ,γ’) (1993Zi05)
3836.7	3836.7	M(γ): From γ(θ) and γ-branching considerations in (γ,γ’) (1993Zi05)
3844.0	3844.0	M(γ): From γ(θ) and γ-branching considerations in (γ,γ’) (1993Zi05)
6465.2	5263	M(γ): From γ(θ) in (γ,γ’) (1977Be05) together with the observation that the transition involves a change of parity.
	5287	M(γ): From γ(θ) in (γ,γ’) (1977Be05) together with the observation that the transition involves a change of parity.
	5366	M(γ): From γ(θ) in (γ,γ’) (1977Be05) together with the observation that the transition involves a change of parity.
	5544	M(γ): E1 multipolarity is not consistent with Jπ’s of 1- to 1-.
	6383	M(γ): From γ(θ) in (γ,γ’) (1977Be05) together with the observation that the transition involves a change of parity.
	6465	M(γ): From γ(θ) and linear polarization in (γ,γ’).