List of levels for 154GD

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
123.0709	2+	1.184 ns 5	123.0706 9	E2		1.187	B(E2)(W.u.)=157.9 14, α=1.187 17
370.9998	4+	45.6 ps 8	247.9288 7	E2		0.1098	B(E2)(W.u.)=243.5 44, α=0.1098
680.6673	0+	4.56 ps 27	557.581 7	E2		0.01053	B(E2)(W.u.)=45.5 +29-26, α=0.01053
717.663	6+	8.26 ps 25	346.643 5	E2		0.0389	B(E2)(W.u.)=269 8, α=0.0389
815.4918	2+	6.4 ps 4	134.8236 12	E2		0.859	B(E2)(W.u.)=111 16, α=0.859
	2+	6.4 ps 4	444.4924 19	E2		0.0191	B(E2)(W.u.)=19.4 12, α=0.0191
	2+	6.4 ps 4	692.4205 18	E2+M1+E0	7.5 4	0.046	B(E2)(W.u.)=6.72 +44-41, B(M1)(W.u.)=1.09E-4 +15-13, α=0.046 3
	2+	6.4 ps 4	815.509 9	E2		0.00427	B(E2)(W.u.)=0.87 +6-5, α=0.00427
996.2568	2+	0.95 ps 7	180.72 7	[M1,E2]		0.35	α=0.35 4
	2+	0.95 ps 7	315.64 7	[E2]		0.0516	B(E2)(W.u.)=1.50 11, α=0.0516
	2+	0.95 ps 7	625.2556 24	E2		0.00792	B(E2)(W.u.)=1.75 +14-12, α=0.00792
	2+	0.95 ps 7	873.1834 23	E2+M1+E0	-9.4 4	0.00371	B(E2)(W.u.)=12.5 9, B(M1)(W.u.)=2.05E-4 +25-22, α=0.00371
	2+	0.95 ps 7	996.264 8	E2		0.00277	B(E2)(W.u.)=5.65 +44-40, α=0.00277
1047.592	4+	7.6 ps 4	232.101 3	E2		0.1359	B(E2)(W.u.)=179 10, α=0.1359
	4+	7.6 ps 4	329.920 4	E2		0.0451	B(E2)(W.u.)=13.2 15, α=0.0451
	4+	7.6 ps 4	676.593 6	E0+M1+E2	+2.9 4	0.053	B(E2)(W.u.)=5.80 +34-37, B(M1)(W.u.)=6.0E-4 +19-13, α=0.053 3
	4+	7.6 ps 4	924.55 3	E2		0.00325	B(E2)(W.u.)=0.529 +30-28, α=0.00325
1127.8018	3+		80.4	[M1,E2]		4.7	α=4.7 10
	3+		131.544 5	E2+M1	-4.3 +21-94	0.937	α=0.937
	3+		312.32 7	[M1,E2]		0.070	α=0.070 17
	3+		756.8020 23	E2+M1	-6.1 3	0.00516	α=0.00516
	3+		1004.729 12	E2+M1	-7.4 4	0.00276	α=0.00276
1144.47	8+	2.57 ps 10	426.78 7	E2		0.0214	B(E2)(W.u.)=311 12, α=0.0214
1182.091	0+		366.581 6	E2		0.0330	α=0.0330
1182.091	0+		1059.033 12	E2		0.00244	α=0.00244
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Mixing Ratio	Conversion Coefficient	Additional Data
1241.291	1-	1.54 fs	245.07 13	[E1]		0.0267	α=0.0267
	1-	1.54 fs	425.777 13	[E1]		0.00681	B(E1)(W.u.)=0.007, α=0.00681
	1-	1.54 fs	560.83 10	[E1]		0.00365	B(E1)(W.u.)=0.0023, α=0.00365
	1-	1.54 fs	1118.237 16	E1		9.28×10^-4	α=9.28×10^-4
	1-	1.54 fs	1241.304 14	E1		8.10×10^-4	α=8.10×10^-4
1251.641	3-		255.80 10	[E1]		0.0239	α=0.0239
	3-		436.20 11	[E1]		0.00644	α=0.00644
	3-		880.640 10	E1+M2	+0.07 3	0.00152	α=0.00152 8
	3-		1128.552 7	E1		9.14×10^-4	α=9.14×10^-4
1263.778	4+		267.499 16	E2		0.0862	α=0.0862
	4+		448.45 19	[E2]		0.0187	α=0.0187
	4+		546.083 14	[E2]		0.01110	α=0.01110
	4+		892.775 6	E0+M1+E2	-3.8 3	0.00367	α=0.00367
	4+		1140.702 6	E2		0.00210	α=0.00210
1365.878	6+		648.3 3	E0+M1+E2	+1.30 20	0.045	α=0.045 8
1365.878	6+		994.9 3	E2		0.00278	α=0.00278 4
1397.515	2-		146.01 7	[M1,E2]		0.668	α=0.668 21
	2-		156.28 8	[M1,E2]		0.54	α=0.54 3
	2-		269.65 8	[E1]		0.0209	α=0.0209
	2-		401.258 14	(E1,M2,E3)		0.070	α=0.070 6
	2-		582.097 12	E1		0.00337	α=0.00337
	2-		1274.429 4	E1+M2	+0.035 9	7.97×10^-4	α=7.97×10^-4
1404.16	(5-)		1033.11 3	E1		1.07×10^-3	α=1.07×10^-3
1414.426	1-		598.96 4	[E1]		0.00317	α=0.00317
	1-		1291.332 17	E1		7.82×10^-4	α=7.82×10^-4
	1-		1414.50 5	E1		7.54×10^-4	α=7.54×10^-4
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Mixing Ratio	Conversion Coefficient	Additional Data
1418.160	2+		166.520 3	[E1]		0.0739	α=0.0739
	2+		176.868 3	[E1]		0.0629	α=0.0629
	2+		236.064 3	[E2]		0.1287	α=0.1287
	2+		290.365 6	[E2+M1]		0.085	α=0.085 19
	2+		370.568 19	E2		0.0320	α=0.0320
	2+		421.893 13	E0+(E2,M1)		0.135	α=0.135 19
	2+		602.688 9	E0,E2,M1		0.038	α=0.038 8
	2+		737.49 14	[E2]		0.00536	α=0.00536
	2+		1047.181 13	E2		0.00250	α=0.00250
	2+		1295.08 13	E2		0.00165	α=0.00165
	2+		1417.89 11	E2		0.00141	α=0.00141
1432.588	5+		714.94 5	E2,M1		0.0080	α=0.0080 23
1432.588	5+		1061.39 9	E2+M1	-4.3 +12-26	0.00251	α=0.00251 8
1531.305	2+		267.499 16	[E2]		0.0862	α=0.0862
	2+		279.640 15	[E1]		0.0190	α=0.0190
	2+		289.99 22	[E1]		0.01735	α=0.01735
	2+		349.24 7	[E2]		0.0381	α=0.0381
	2+		403.506 5	[M1,E2]		0.034	α=0.034 10
	2+		483.68 2	[E2]		0.01523	α=0.01523
	2+		535.050 11	[E0+M1+E2]		0.016	α=0.016 5
	2+		715.819 9	E0,M1,E2		0.013	α=0.013 4
	2+		850.64 3	E2		0.00389	α=0.00389
	2+		1160.5 3	[E2]		0.00203	α=0.00203
	2+		1408.2 2	E0,M1,E2		0.0037	α=0.0037 14
	2+		1531.6 3	[E2]		1.26×10^-3	α=1.26×10^-3
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Mixing Ratio	Conversion Coefficient	Additional Data
1559.92	(4-)		295.7	[E1]		0.01652	α=0.01652
	(4-)		307.7 3	[E2+M1]		0.073	α=0.073 17
	(4-)		511.60 8	[E1]		0.00448	α=0.00448
1606.51	6+		888.69 13	E2+M1	1.8 GT	0.0038	α=0.0038 3
1617.125	3-		199.20 8	[E1]		0.0459	α=0.0459
	3-		203.40 29	[E2]		0.210	α=0.210
	3-		213.06 11	[E2]		0.180	α=0.180
	3-		218.71 26	[M1,E2]		0.19	α=0.19 3
	3-		352.85 20	[E1]		0.01066	α=0.01066
	3-		365.47 15	[E2+M1]		0.045	α=0.045 12
	3-		569.50 7	[E1]		0.00353	α=0.00353
	3-		621.6 5	[E1]		0.00293	α=0.00293
	3-		801.69 11	[E1]		1.74×10^-3	α=1.74×10^-3
	3-		1246.121 4	E1		8.07×10^-4	α=8.07×10^-4
	3-		1494.048 4	E1		7.56×10^-4	α=7.56×10^-4
1637.08	10+	1.11 ps 14	492.6 1	E2		0.01451	B(E2)(W.u.)=353 +50-41, α=0.01451
1645.814	4+		241.20 9	[E1]		0.0278	α=0.0278
	4+		382.025 7	E2+M1		0.040	α=0.040 11
	4+		518.012 16	E2+M1	-7 3	0.0129	α=0.0129 5
	4+		598.22 2	M1+E2	0.65 20	0.0139	α=0.0139 10
	4+		649.565 11	E2		0.00722	α=0.00722
	4+		830.49 9	[E2]		0.00410	α=0.00410
	4+		928.21 8	[E2]		0.00322	α=0.00322
	4+		1275.66 12	[E2+M1]		0.0021	α=0.0021 5
	4+		1522.8	[E2]		0.00127	α=0.00127
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Mixing Ratio	Conversion Coefficient	Additional Data
1660.903	3+		129.60 13	[M1,E2]		0.975	α=0.975 20
	3+		228.23 9	[E2]		0.1436	α=0.1436
	3+		242.86 6	[E2+M1]		0.14	α=0.14 3
	3+		263.50 16	[E1]		0.0221	α=0.0221
	3+		397.07 7	[M1,E2]		0.036	α=0.036 10
	3+		409.19 8	[E1]		0.00748	α=0.00748
	3+		533.03 8	[E0+M1+E2]		0.017	α=0.017 5
	3+		613.289 10	E2,M1		0.012	α=0.012 4
	3+		664.68 5	[M1,E2]		0.010	α=0.010 3
	3+		845.416 7	E2		0.00395	α=0.00395
	3+		1289.88 11	[M1,E2]		0.0021	α=0.0021 5
	3+		1537.82 3	[M1,E2]		0.0015	α=0.0015 3
1701.40	4+		283.0 2	[E2]		0.0722	α=0.0722
	4+		705.1 2	[E2]		0.00595	α=0.00595
	4+		885.8 2	[E2]		0.00356	α=0.00356
	4+		1578.2 2	[E2]		1.22×10^-3	α=1.22×10^-3
1716.050	2+		588.254 7	E2		0.00920	α=0.00920
1719.5593	2-		301.38 7	[E1]		0.01575	α=0.01575
	2-		305.14	[M1,E2]		0.074	α=0.074 18
	2-		322.01 5	[M1,E2]		0.064	α=0.064 16
	2-		467.84 5	[M1,E2]		0.023	α=0.023 7
	2-		478.27 4	E2		0.01570	α=0.01570
	2-		591.755 3	E1(+M2)	+0.02 3	0.00327	α=0.00327 11
	2-		723.3014 22	E1+M2	+0.022 13	0.00215	α=0.00215 4
	2-		904.064 3	E1(+M2)		0.008	α=0.008 7
	2-		1596.4804 28	E1(+M2)		0.0021	α=0.0021 14
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Mixing Ratio	Conversion Coefficient	Additional Data
1756.46	8+		612.1 2	E0+M1+E2	-0.69 14	0.061	α=0.061 8
1770.187	5+		337.35 9	(E0+M1+E2)		0.12	α=0.12
	5+		506.44 4	E2		0.01349	α=0.01349
	5+		642.40 2	E2		0.00742	α=0.00742 11
1775.430	2+		1094.91 8	E2		0.00228	α=0.00228
1788.83	(4+)		740.91 16	[E0+M1+E2]		0.0074	α=0.0074 21
	(4+)		1071.17 24	[E2]		0.00239	α=0.00239
	(4+)		1417.88 9	[M1,E2]		0.0017	α=0.0017 4
	(4+)		1665.83 12	[E2]		1.14×10^-3	α=1.14×10^-3
1796.961	3-		378.90 27	[E1]		0.00898	α=0.00898
	3-		382.46 27	[E2]		0.0292	α=0.0292
	3-		545.20 14	[E2+M1]		0.016	α=0.016 5
	3-		669.154 16	E1		0.00251	α=0.00251
	3-		749.48 9	[E1]		0.00199	α=0.00199
	3-		800.731 15	E1		0.00174	α=0.00174
1810.22	7+		665.86 14	E2+M1	-3.2 +7-10
1810.22	7+		1092.46 6	E2+M1	-2.7 +5-6
1836.61	0+		595.070 13	E1		0.00321	α=0.00321
1900.34	(2+)		1529.6 3	E2		0.00127	α=0.00127
1911.545	6+		141.33 3	E2+M1	7 +6-3	0.729	α=0.729
1911.545	6+		304.75 12	E2		0.0574	α=0.0574
1964.05	(2)+		127.439 4	(E2)		1.049	α=1.049 15
1964.05	(2)+		1592.8 2	(E2)		0.00120	α=0.00120 17
2041.07	(1,2)+		1044.90 12	M1		0.00412	α=0.00412
2080.230	4+		419.28 3	(M1)		0.0397	α=0.0397
2080.230	4+		952.39 4	M1,E2		0.0041	α=0.0041 11
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Mixing Ratio	Conversion Coefficient	Additional Data
2080.792	3-		683.13 4	M1		0.01156	α=0.01156
2119.55	1+,2+		701.2 6	M1		0.01083	α=0.01083
	1+,2+		704.90 11	E1		0.00225	α=0.00225
	1+,2+		1123.09 16	E2,M1		0.0028	α=0.0028 7
	1+,2+		1996.61 9	E2+M1		0.00112	α=0.00112 13
	1+,2+		2119.68 15	M1,E2		0.00109	α=0.00109 11
2137.48	7-	68 ns	225.94 3	E1		0.0329	B(E1)(W.u.)=1.3E-7, α=0.0329
	7-	68 ns	992.92 12	E1(+M2)	-0.16 +16-23	0.00116	B(E1)(W.u.)=1.2E-9, B(M2)(W.u.)=1E-4, α=0.00116
	7-	68 ns	1419.81 8	E1		7.54×10^-4	B(E1)(W.u.)=2.6E-10, α=7.54E-4
2148.81	(1,2)+		730.71 6	M1,E2		0.0076	α=0.0076 22
2176.03	(1+)		62.2937 18	M1+E2	1.1 4	12.0	α=12.0 17
2176.03	(1+)		1359.9 2	(M1)		0.00225	α=0.00225
2185.869	4-		415.85 6	E1		0.00720	α=0.00720
	4-		484.74 21	[E1]		0.00505	α=0.00505
	4-		540.18 6	E1		0.00397	α=0.00397
2187.01	1+		2064.11 10	M1,E2		0.00111	α=0.00111 12
2187.01	1+		2187.10 16	M1		0.00118	α=0.00118 17
2194.12	10+		557.1 2	E0+M1+E2	1.1 +5-3	0.053	α=0.053 14
2293.50	(3)+		1297.32 10	M1		0.00249	α=0.00249
2305.79	3+		76.015 4	M1		4.43	α=4.43
2309.47	(8-)		171.99 4	[M1+E2]		0.40	α=0.40 4
2309.53	(2)+		1313.25 17	M1		0.00242	α=0.00242
2468.45	1,2+		245.97 2	(M1)		0.1628	α=0.1628
2475.25	(9-)		165.8 1	D+Q	-0.44 +13-26
2590.34	(1,2)+		470.793 7	M1		0.0295	α=0.0295
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Mixing Ratio	Conversion Coefficient	Additional Data
2637.48	(2)-		1509.2 3	E1		7.58×10^-4	α=7.58×10^-4
2934.2	1+	2.07 fs 23	1693	[E1]		7.99×10^-4	B(E1)(W.u.)=2.76E-4 +40-30, α=7.99E-4 11
	1+	2.07 fs 23	1752	[M1]		1.43×10^-3	B(M1)(W.u.)=0.034 +6-5, α=1.43×10^-3 2
	1+	2.07 fs 23	2253	[M1]		1.17×10^-3	B(M1)(W.u.)=0.0174 +24-17, α=1.17×10^-3 2
	1+	2.07 fs 23	2811.3 10	[M1]		1.20×10^-3	B(M1)(W.u.)=0.120 +16-11, α=1.20×10^-3 2
	1+	2.07 fs 23	2934.1 6	[M1]		1.23×10^-3	B(M1)(W.u.)=0.292 +38-27, α=1.23×10^-3 2
2949.29	(1+)	3.1 fs 7	1709	[E1]		8.04×10^-4	B(E1)(W.u.)=1.4E-4 +7-5, α=8.04E-4 11
	(1+)	3.1 fs 7	1768	[M1]		1.42×10^-3	B(M1)(W.u.)=0.018 +9-7, α=1.42×10^-3 2
	(1+)	3.1 fs 7	1954	[M1]		1.27×10^-3	B(M1)(W.u.)=0.0109 +33-21, α=1.27×10^-3 2
	(1+)	3.1 fs 7	2135	[M1]		1.19×10^-3	B(M1)(W.u.)=0.0075 +22-14, α=1.19×10^-3 2
	(1+)	3.1 fs 7	2269	[M1]		1.17×10^-3	B(M1)(W.u.)=0.0028 +13-10, α=1.17×10^-3 2
	(1+)	3.1 fs 7	2826.0 6	[M1]		1.20×10^-3	B(M1)(W.u.)=0.112 +33-22, α=1.20×10^-3 2
	(1+)	3.1 fs 7	2949.5 5	[M1]		1.23×10^-3	B(M1)(W.u.)=0.079 +24-15, α=1.23×10^-3 2
3090.3	1+	2.0 fs 4	1908	[M1]		1.30×10^-3	B(M1)(W.u.)=0.131 +39-30, α=1.30×10^-3 2
	1+	2.0 fs 4	2275	[M1]		1.17×10^-3	B(M1)(W.u.)=0.032 +8-6, α=1.17×10^-3 2
	1+	2.0 fs 4	2409	[M1]		1.16×10^-3	B(M1)(W.u.)=0.032 +8-6, α=1.16×10^-3 2
	1+	2.0 fs 4	2967.6 15	[M1]		1.23×10^-3	B(M1)(W.u.)=0.117 +29-20, α=1.23×10^-3 2
	1+	2.0 fs 4	3090.5 10	[M1]		1.26×10^-3	B(M1)(W.u.)=0.21 +5-4, α=1.26×10^-3 2
3122.59	1+	5.4 fs 26	2127	[M1]		1.20×10^-3	B(M1)(W.u.)=0.057 +46-20, α=1.20×10^-3 2
	1+	5.4 fs 26	2442.3 3	[M1]		1.16×10^-3	B(M1)(W.u.)=0.0031 +26-12, α=1.16×10^-3 2
	1+	5.4 fs 26	2998.7 4	[M1]		1.24×10^-3	B(M1)(W.u.)=0.050 +40-17, α=1.24×10^-3 2
	1+	5.4 fs 26	3122.2 15	[M1]		1.27×10^-3	B(M1)(W.u.)=0.07 +6-2, α=1.27×10^-3 2
3404.56	16+		627.1 1	E2		0.00786	α=0.00786

Data are from ¹⁵³Gd(n,γ), ¹⁵⁴Eu β^- decay, ¹⁵⁴Tb ε decay (21.5 h, 9.973 h, and 22.7 h), ¹⁵⁰Nd(⁹Be,5nγ) and Sm(α,xnγ) reactions, Coulomb excitation, ¹⁵⁶Gd(p,t), ¹⁵²Gd(t,p), ¹⁵⁴Gd(e,e’), ¹⁵⁴Gd(d,d’), and ¹⁵⁴Gd(p,p’) reactions.

In a study of the β^- decay of ¹⁵⁴Eu, 2004Ku13 do not confirm the existence of the following levels, previously reported in thermal-neutron capture: 1276.99; 1294.19; 1295.09; 1698.51; 1702.04; 1838.61; and 1861.55. These levels and their associated γ’s are not included here. See the comments in the ¹⁵⁴Eu β^- decay and ¹⁵³Gd(n,γ) E=th data sets.

Possible ¹⁵⁸Dy α decay (2011Be18): T_1/2 |> 1.3×10¹⁶ Y established by γ spectroscopy based on 31 events for 2⁺ to 0⁺, 123.1γ in ¹⁵⁴Gd (no peak observed)

Levels: From the compilation of 1973Mu14 there are 48 n resonances below 1~keV in ¹⁵⁴Gd; the related measurements are given in 1974Ra23. See 1987Ma13 for data on 134 resonances from 0.48 to 2.76~keV. For a recent publication of n resonances for this, and other nuclides, see 2018MuZZ.

Levels: For the labeling used to identify the cranked shell-model configurations, see the (⁹Be,5nγ) data set. For a discussion of the various band crossings in the cranked shell-model, see 1989Mo20 (⁹Be,5nγ).

Gammas: Unplaced γ’s are not included here; see ¹⁵⁴Tb ε decays (21.5 h, 9.973 h, and 22.7 h), ¹⁵⁴Eu β^- decay, and ¹⁵²Sm(α,2nγ).

Q-value: S(2n)=15141.69 21, S(2p)=13521.32 27 (2021Wa16)

Q(β-)=-3550 keV 50	S(n)= 8894.73 keV 17	S(p)= 7627.9 keV 7	Q(α)= 920.1 keV 7
Reference: 2021WA16

References:
A	¹⁵⁴Eu β^- decay	B	¹⁵⁴Tb ε decay (21.5 H)
C	¹⁵⁴Tb ε decay (9.973 H)	D	¹⁵⁴Tb ε decay (22.7 H)
E	¹⁵⁰Nd(⁹Be,5nγ)	F	¹⁵²Sm(α,2nγ),¹⁵⁴Sm(α,4nγ)
G	¹⁵²Gd(t,p)	H	¹⁵³Eu(³He,d),¹⁵³Eu(α,t)
I	¹⁵³Gd(n,γ) E=TH	J	¹⁵⁴Gd(γ,γ’)
K	¹⁵⁴Gd(E,E’)	L	¹⁵⁴Gd(d,d’),¹⁵⁴Gd(p,p’)
M	¹⁵⁶Gd(p,tγ)	N	¹⁵⁶Gd(p,t)
O	Coulomb Excitation

E(level)	J^π(level)	T_1/2(level)	Comments
0.0	0+	STABLE	The isotope shift has been deduced from optical spectroscopy and muonic atom x-ray energies. These results include, all in fm², {Δ<r²>(¹⁵²Gd-¹⁵⁴Gd)=0.412~21 (1990Wa25), 0.43~2 (1987Bo58) and 0.48 (1988Al40, read from graph by evaluator); \|l(¹⁵²Gd-¹⁵⁴Gd)=0.425~13 (2000Bl10), 0.43~5 (1990Du08); \|l(¹⁵⁴Gd-¹⁵⁵Gd)=0.099~2 (2000Bl10), 0.112~24 (1974Bo60); {Δ<r²>(¹⁵⁴Gd-¹⁵⁶Gd)=0.183~9 (1990Wa25), 0.216~25 (1983La08), 0.188~10 (1987Bo58), and 0.21 (1988Al40, read from graph by evaluator); and \|l(¹⁵⁴Gd-¹⁵⁶Gd)=0.203~23 (1974Bo60) and 0.197~9 (1990Du08). See 1990Wa25 for Δ<r⁴> and Δ<r⁶> values. E(level): The isotope shift has been deduced from optical spectroscopy and muonic atom x-ray energies. These results include, all in fm², {Δ<r²>(¹⁵²Gd-¹⁵⁴Gd)=0.412~21 (1990Wa25), 0.43~2 (1987Bo58) and 0.48 (1988Al40, read from graph by evaluator); \|l(¹⁵²Gd-¹⁵⁴Gd)=0.425~13 (2000Bl10), 0.43~5 (1990Du08); \|l(¹⁵⁴Gd-¹⁵⁵Gd)=0.099~2 (2000Bl10), 0.112~24 (1974Bo60); {Δ<r²>(¹⁵⁴Gd-¹⁵⁶Gd)=0.183~9 (1990Wa25), 0.216~25 (1983La08), 0.188~10 (1987Bo58), and 0.21 (1988Al40, read from graph by evaluator); and \|l(¹⁵⁴Gd-¹⁵⁶Gd)=0.203~23 (1974Bo60) and 0.197~9 (1990Du08). See 1990Wa25 for Δ<r⁴> and Δ<r⁶> values. K^π=0⁺ ground-state band. a=21.35, b=-0.14 (from 0⁺, 2⁺.
123.0709	2+	1.184 ns 5	Q=-1.82 4, μ=+0.96 6 The isomer shift has been deduced from muonic atom studies to be 0.020 fm² 4 (1983La08) and Δ<r²>/<r²>= +0.00059~8 (1968Be24) and from Mossbauer studies Δ<r²>/<r²>= +0.00075~23 (1969Re05) and 0.00005~7 (1968Ga09). E(level): The isomer shift has been deduced from muonic atom studies to be 0.020 fm² 4 (1983La08) and Δ<r²>/<r²>= +0.00059~8 (1968Be24) and from Mossbauer studies Δ<r²>/<r²>= +0.00075~23 (1969Re05) and 0.00005~7 (1968Ga09). K^π=0⁺ ground-state band. a=21.35, b=-0.14 (from 0⁺, 2⁺.
370.9998	4+	45.6 ps 8	E(level): K^π=0⁺ ground-state band. a=21.35, b=-0.14 (from 0⁺, 2⁺.
680.6673	0+	4.56 ps 27	E(level): First excited K^π=0⁺ band. Probable β-vibrational band.
717.663	6+	8.26 ps 25	E(level): K^π=0⁺ ground-state band. a=21.35, b=-0.14 (from 0⁺, 2⁺.
815.4918	2+	6.4 ps 4	E(level): First excited K^π=0⁺ band. Probable β-vibrational band.
996.2568	2+	0.95 ps 7	μ=+0.83 +7-9 E(level): K^π=2⁺ γ-vibrational band. a=23.63, b=-0.222,.
1047.592	4+	7.6 ps 4	E(level): First excited K^π=0⁺ band. Probable β-vibrational band.
1127.8018	3+		E(level): K^π=2⁺ γ-vibrational band. a=23.63, b=-0.222,.
1144.47	8+	2.57 ps 10	E(level): K^π=0⁺ ground-state band. a=21.35, b=-0.14 (from 0⁺, 2⁺.
1182.091	0+		E(level): Second excited K^π=0⁺ band. Intruder band. band is.
1241.291	1-	1.54 fs	BE1=0.00243 E(level): K^π=1- odd-spin octupole-vibrational band. At higher spins,.
1251.641	3-		B(E3)=0.21 5 E(level): K^π=1- odd-spin octupole-vibrational band. At higher spins,.
1263.778	4+		E(level): K^π=2⁺ γ-vibrational band. a=23.63, b=-0.222,.
1365.878	6+		E(level): First excited K^π=0⁺ band. Probable β-vibrational band.
1397.515	2-		E(level): K^π=1- even-spin octupole-vibrational band.
1404.16	(5-)		E(level): K^π=1- odd-spin octupole-vibrational band. At higher spins,.
1414.426	1-		E(level): K^π=1- odd spin band.
1418.160	2+		E(level): Second excited K^π=0⁺ band. Intruder band. band is.
1432.588	5+		E(level): K^π=2⁺ γ-vibrational band. a=23.63, b=-0.222,.
1531.305	2+		XREF: L(1534). E(level): K^π=2⁺ even-spin band.
1559.92	(4-)		XREF: H(1556). E(level): K^π=1- even-spin octupole-vibrational band.
1573.974	0+		E(level): Excited K^π=0⁺ band.
1606.51	6+		E(level): K^π=2⁺ γ-vibrational band. a=23.63, b=-0.222,.
1617.125	3-		B(E3)=0.030 The Eγ values of all the γ’s deexciting this level are from the ¹⁵⁴Eu β^- decay data. E(level): The Eγ values of all the γ’s deexciting this level are from the ¹⁵⁴Eu β^- decay data. K^π=1- odd spin band.
E(level)	J^π(level)	T_1/2(level)	Comments
1637.08	10+	1.11 ps 14	E(level): K^π=0⁺ ground-state band. a=21.35, b=-0.14 (from 0⁺, 2⁺.
1645.814	4+		E(level): K^π=4⁺ even-spin band.
1650.34	0+		E(level): Excited K^π=0⁺ band. Proposed as the three-phonon β band by.
1660.903	3+		E(level): K^π=2⁺ odd-spin band. 2011Sh07 do not give the 8⁺ member of.
1674.1	(7-)		E(level): K^π=1- odd-spin octupole-vibrational band. At higher spins,.
1701.40	4+		E(level): Second excited K^π=0⁺ band. Intruder band. band is.
1716.050	2+		E(level): Excited K^π=0⁺ band.
1719.5593	2-		E(level): K^π=1- even spin band.
1756.46	8+		E(level): First excited K^π=0⁺ band. Probable β-vibrational band.
1770.187	5+		E(level): K^π=4⁺ odd-spin band.
1775.430	2+		E(level): Excited K^π=0⁺ band. Proposed as the three-phonon β band by.
1788.83	(4+)		E(level): K^π=2⁺ even-spin band.
1810.22	7+		E(level): K^π=2⁺ γ-vibrational band. a=23.63, b=-0.222,.
1825	6-		E(level): K^π=1- even-spin octupole-vibrational band.
1911.545	6+		E(level): K^π=4⁺ even-spin band.
1922	(4-)		E(level): K^π=1- even spin band. J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
1988	(5+)		E(level): K^π=2⁺ odd-spin band. 2011Sh07 do not give the 8⁺ member of. J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
2018.39	8+		E(level): K^π=2⁺ γ-vibrational band. a=23.63, b=-0.222,.
2023.82	1,2+		XREF: H(2024?).
2040.5	(9-)		E(level): K^π=1- odd-spin octupole-vibrational band. At higher spins,.
2073.30	(7+)		E(level): K^π=4⁺ odd-spin band.
2080.230	4+		E(level): Excited K^π=0⁺ band.
2119.55	1+,2+		XREF: H(2117).
2137.48	7-	68 ns	E(level): K^π=7- band. Configuration=(ν 3/2[651])+(ν 11/2[505]).
2148.81	(1,2)+		XREF: H(2150).
E(level)	J^π(level)	T_1/2(level)	Comments
2176.03	(1+)		XREF: H(2179). E(level): K^π=1⁺ band. Strongly mixed with the other K^π=1⁺ band.
2183	(8-)		E(level): K^π=1- even-spin octupole-vibrational band. J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
2183.22	8(-)		E(level): Two-quasineutron band.
2184.75	12+		E(level): K^π=0⁺ ground-state band. a=21.35, b=-0.14 (from 0⁺, 2⁺.
2187.01	1+		XREF: H(2184). E(level): K^π=1⁺ band. Strongly mixed with the other K^π=1⁺ band.
2194.12	10+		E(level): First excited K^π=0⁺ band. Probable β-vibrational band.
2222.48	(2+)		E(level): K^π=1⁺ band. Strongly mixed with the other K^π=1⁺ band.
2229.77	(2+)		E(level): K^π=1⁺ band. Strongly mixed with the other K^π=1⁺ band.
2245	7+		E(level): K^π=2⁺ odd-spin band. 2011Sh07 do not give the 8⁺ member of. J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
2251.3	9(-)		E(level): Two-quasineutron band.
2251.38	9+		E(level): K^π=2⁺ γ-vibrational band. a=23.63, b=-0.222,.
2254.13	(8+)		E(level): K^π=4⁺ even-spin band.
2293.50	(3)+		E(level): K^π=1⁺ band. Strongly mixed with the other K^π=1⁺ band.
2300.7	(6+)		E(level): K^π=2⁺ even-spin band. J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
2305.79	3+		E(level): K^π=1⁺ band. Strongly mixed with the other K^π=1⁺ band.
2309.47	(8-)		E(level): K^π=7- band. Configuration=(ν 3/2[651])+(ν 11/2[505]).
2368.87	2+,3,4+		XREF: H(2367)I(2369.4).
2392.0	(9+)		E(level): K^π=2⁺ odd-spin band. 2011Sh07 do not give the 8⁺ member of. J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
2403.1	(4+)		E(level): K^π=1⁺ band. Strongly mixed with the other K^π=1⁺ band.
2410.86	4+		E(level): K^π=1⁺ band. Strongly mixed with the other K^π=1⁺ band.
2418	(6-)		E(level): K^π=(5-) band. Dominant Configuration=(π 5/2[413])+(π.
2433.78	0+,1,2		XREF: H(2430).
2449.2	(1,2)		XREF: H(2455).
2453.29	(9+)		E(level): K^π=4⁺ odd-spin band.
2475.25	(9-)		E(level): K^π=7- band. Configuration=(ν 3/2[651])+(ν 11/2[505]).
E(level)	J^π(level)	T_1/2(level)	Comments
2482.34	(11-)		E(level): K^π=1- odd-spin octupole-vibrational band. At higher spins,.
2490.24	10+		E(level): K^π=2⁺ γ-vibrational band. a=23.63, b=-0.222,.
2510	(8-)		E(level): K^π=1- even spin band. J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
2556	(9-)		J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
2568	(7-)		E(level): K^π=(5-) band. Dominant Configuration=(π 5/2[413])+(π.
2579.66	10(-)		E(level): Two-quasineutron band.
2603	(10+)		E(level): K^π=2⁺ even-spin band. J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
2616.15	10(-)		E(level): K^π=7- band. Configuration=(ν 3/2[651])+(ν 11/2[505]).
2619.51	10(-)		E(level): Two-quasineutron band.
2621.4	(10-)		E(level): K^π=1- even-spin octupole-vibrational band.
2622.05	12+		E(level): Aligned two-neutron-quasiparticle band.
2655.04	2+		XREF: H(2658).
2666.2	(10+)		E(level): K^π=4⁺ even-spin band.
2710.1	(11+)		E(level): K^π=2⁺ odd-spin band. 2011Sh07 do not give the 8⁺ member of. J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
2741	(10-)		J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
2746.49	11+		E(level): K^π=2⁺ γ-vibrational band. a=23.63, b=-0.222,.
2775.51	11(-)		E(level): K^π=7- band. Configuration=(ν 3/2[651])+(ν 11/2[505]).
2777.41	14+		E(level): K^π=0⁺ ground-state band. a=21.35, b=-0.14 (from 0⁺, 2⁺.
2900	11+		E(level): K^π=4⁺ odd-spin band. J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
2950.71	12(-)		E(level): Two-quasineutron band.
2955.80	12(-)		E(level): Two-quasineutron band.
2957	(11-)		J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
2964.4	(12+)		E(level): K^π=2⁺ even-spin band. J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
2981.35	13(-)		E(level): K^π=1- odd-spin octupole-vibrational band. At higher spins,.
3011.11	12+		E(level): K^π=2⁺ γ-vibrational band. a=23.63, b=-0.222,.
E(level)	J^π(level)	T_1/2(level)	Comments
3027.41	14+		E(level): Aligned two-neutron-quasiparticle band.
3100	(12-)		E(level): K^π=1- even-spin octupole-vibrational band.
3136.3	(13+)		E(level): K^π=2⁺ odd-spin band. 2011Sh07 do not give the 8⁺ member of. J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
3141	(12+)		E(level): K^π=4⁺ even-spin band. J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
3158.86	13(-)		E(level): K^π=7- band. Configuration=(ν 3/2[651])+(ν 11/2[505]).
3186	(12-)		J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
3284.91	13+		E(level): K^π=2⁺ γ-vibrational band. a=23.63, b=-0.222,.
3384.1	14(-)		E(level): Two-quasineutron band.
3402	(13+)		E(level): K^π=4⁺ odd-spin band. J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
3404.56	16+		E(level): K^π=0⁺ ground-state band. a=21.35, b=-0.14 (from 0⁺, 2⁺.
3428.1	14(-)		E(level): Two-quasineutron band.
3429	(13-)		J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
3469.3	(14+)		E(level): K^π=2⁺ even-spin band. J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
3490.96	16+		E(level): Aligned two-neutron-quasiparticle band.
3519.16	(15-)		E(level): K^π=1- odd-spin octupole-vibrational band. At higher spins,.
3563.8	(14+)		E(level): K^π=2⁺ γ-vibrational band. a=23.63, b=-0.222,.
3609	(14-)		E(level): K^π=1- even-spin octupole-vibrational band.
3629.56	15(-)		E(level): K^π=7- band. Configuration=(ν 3/2[651])+(ν 11/2[505]).
3674.8	(15+)		E(level): K^π=2⁺ odd-spin band. 2011Sh07 do not give the 8⁺ member of. J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
3687	(14-)		J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
3852.9	(15+)		E(level): K^π=2⁺ γ-vibrational band. a=23.63, b=-0.222,. J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
3894.47	16(-)		E(level): Two-quasineutron band.
3907.4	(16+)		E(level): K^π=2⁺ even-spin band. J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
3959	(15-)		J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
3987.4	16(-)		E(level): Two-quasineutron band.
E(level)	J^π(level)	T_1/2(level)	Comments
4016.22	(18+)		E(level): Aligned two-neutron-quasiparticle band.
4087.26	(18+)		E(level): K^π=0⁺ ground-state band. a=21.35, b=-0.14 (from 0⁺, 2⁺.
4102.1	(17-)		E(level): K^π=1- odd-spin octupole-vibrational band. At higher spins,.
4125	(16-)		E(level): K^π=1- even-spin octupole-vibrational band.
4146.4	(16+)		E(level): K^π=2⁺ γ-vibrational band. a=23.63, b=-0.222,. J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
4176.5	17(-)		E(level): K^π=7- band. Configuration=(ν 3/2[651])+(ν 11/2[505]).
4244	(16-)		J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
4290.7	(17+)		E(level): K^π=2⁺ odd-spin band. 2011Sh07 do not give the 8⁺ member of. J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
4422.0	(18+)		E(level): K^π=2⁺ even-spin band. J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
4473.9	(17+)		E(level): K^π=2⁺ γ-vibrational band. a=23.63, b=-0.222,. J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
4475.0	18(-)		E(level): Two-quasineutron band.
4538	(17-)		J^π(level): From (α,2nγ),(α,4nγ) dataset with no arguments other than placement in band sequence.
4595.2	18(-)		E(level): Two-quasineutron band.
4646.42	(20+)		E(level): Aligned two-neutron-quasiparticle band.
4735.6	(19-)		E(level): K^π=1- odd-spin octupole-vibrational band. At higher spins,.
4782.5	(20+)		E(level): K^π=0⁺ ground-state band. a=21.35, b=-0.14 (from 0⁺, 2⁺.
4788.7	19(-)		E(level): K^π=7- band. Configuration=(ν 3/2[651])+(ν 11/2[505]).
5116.5	20(-)		E(level): Two-quasineutron band.
5209.3	20(-)		E(level): Two-quasineutron band.
5350.0	(22+)		E(level): Aligned two-neutron-quasiparticle band.
5415.9	21(-)		E(level): K^π=1- odd-spin octupole-vibrational band. At higher spins,.
5457.6	21(-)		E(level): K^π=7- band. Configuration=(ν 3/2[651])+(ν 11/2[505]).
5519.7	(22+)		E(level): K^π=0⁺ ground-state band. a=21.35, b=-0.14 (from 0⁺, 2⁺.
5811.0	(22-)		E(level): Two-quasineutron band.
5848.5	(22-)		E(level): Two-quasineutron band.
E(level)	J^π(level)	T_1/2(level)	Comments
6121.7	(24+)		E(level): Aligned two-neutron-quasiparticle band.
6136.3	(23-)		E(level): K^π=1- odd-spin octupole-vibrational band. At higher spins,.
6178.1	(23-)		E(level): K^π=7- band. Configuration=(ν 3/2[651])+(ν 11/2[505]).
6294.3	(24+)		E(level): K^π=0⁺ ground-state band. a=21.35, b=-0.14 (from 0⁺, 2⁺.
6535.6	(24-)		E(level): Two-quasineutron band.
6555.5	(24-)		E(level): Two-quasineutron band.
6883.3	(25-)		E(level): K^π=1- odd-spin octupole-vibrational band. At higher spins,.
6946.1	(25-)		E(level): K^π=7- band. Configuration=(ν 3/2[651])+(ν 11/2[505]).
6955.1	(26+)		E(level): Aligned two-neutron-quasiparticle band.
7055.7	(26+)		E(level): K^π=0⁺ ground-state band. a=21.35, b=-0.14 (from 0⁺, 2⁺.
7274.0	(26-)		E(level): Two-quasineutron band.
7353.1	(26-)		E(level): Two-quasineutron band.

E(level)	E(gamma)	Comments
123.0709	123.0706	E(γ): From ¹⁵⁴Eu β^- decay.
370.9998	247.9288	E(γ): From ¹⁵⁴Eu β^- decay. M(γ): α(K)exp=0.091~6 (1972Na21,1968Ng01). Others: 1974Go30, 1996SpZZ.
680.6673	557.581	M(γ): α(K)exp=0.0087~5 (1977Ya04), 0.009~1 (1996SpZZ), and 0.0075~30 (1972Na21). Others: 1972Vy04, 1968Br20.
680.6673	680.652	M(γ): α(K)exp>3.0 (1996SpZZ). Others: 1968Br20, 1969An01, 1972Na21, and 1977Ya04.
717.663	346.643	M(γ): α(K)exp=0.031~1 (1971Ri08,1974Go30,1972Vy04,1996SpZZ).
815.4918	134.8236	I(γ): From ¹⁵⁴Eu β^- decay; from ¹⁵³Gd(n,γ), Iγ=0.75~2. M(γ): α(K)exp=0.48~9 (1996SpZZ).
	444.4924	E(γ): From ¹⁵⁴Eu β^- decay. M(γ): α(K)exp=0.0155~11 (1971Ri08,1977Ya04,1972Na21,1996SpZZ). Other: 1968Br20.
	692.4205	E(γ): From ¹⁵⁴Eu β^- decay. M(γ): α(K)exp=0.040~3 (1968Br20,1971Ma65,1971Ru05,1972Na21,1972Vy04,1977Ya04, and 1996SpZZ). Others: 1964Ha47 and 1968Ng01.
	815.509	M(γ): α(K)exp=0.0039~2 (1971Ru05,1972Na21,1977Ya04,1996SpZZ). Others: 1968Br20 and 1972Vy04.
996.2568	625.2556	E(γ): From ¹⁵⁴Eu β^- decay. M(γ): α(K)exp=0.0080~15 (1971Ru05,1996SpZZ). Others: 1968Br20 and 1972Vy04.
	873.1834	E(γ): From ¹⁵⁴Eu β^- decay.. Multiply placed with undivided intensity I(γ): Multiply placed with undivided intensity M(γ): α(K)exp=0.00346~10 (1968Br20,1968Ng01,1971Ru05,1972Na21,1972Vy04, 1977Ya04,1996SpZZ). Penetration parameter: 70<\|l<190 (1983Gi07).
	996.264	M(γ): α(K)exp=0.00245~10 (1968Br20,1968Ng01,1972Na21,1972Vy04,1977Ya04,1996SpZZ).
1047.592	232.101	M(γ): α(K)exp=0.089~8 (1971Ri08,1977Ya04,1996SpZZ)
	329.920	M(γ): α(K)exp=0.034~3 (1996SpZZ,1972Vy04).
	676.593	M(γ): α(K)exp=0.044~3 (1971Ru05,1972Na21,1974Go30,1977Ya04,1996SpZZ). Others: 1968Br20,1968Ha28,1969An01.
	924.55	M(γ): α(K)exp=0.0030~2 (1977Ya04,1996SpZZ).
1127.8018	312.32	E(γ): From ¹⁵⁴Eu β^- decay. γ not reported in (n,γ).
	756.8020	E(γ): From ¹⁵⁴Eu β^- decay. I(γ): From ¹⁵⁴Eu β^- decay. Others: 24.3~14, 28.9~11, and 29.1~15. M(γ): α(K)exp=0.00425~15 (1971Ru05,1996SpZZ). Others: 1968Br20, 1968Ng01, 1972Na21, and 1972Vy04.
	1004.729	M(γ): α(K)exp=0.00235~10 (1968Br20,1968Ng01,1971Ri08,1972Na21,1996SpZZ); other: 1972Vy04.
1144.47	426.78	M(γ): DCO and linear polarization (2019Ma70). α(K)exp=0.017~2 (1971Ri08,1974Go30,1972Vy04) which implies E2 character, but peak is a doublet.
1182.091	366.581	M(γ): α(K)exp=0.019~2 (1996SpZZ) compared to α(K)(E2)=0.026.
	501.419	M(γ): α(K)exp>1.2 (1996SpZZ).
	1059.033	M(γ): α(K)exp=0.0021~1 (1996SpZZ).
	1182.07	M(γ): α(K)exp>0.05 (1996SpZZ).
1241.291	1118.237	M(γ): α(K)exp=0.0009~1 (1996SpZZ).
1241.291	1241.304	M(γ): α(K)exp=0.0007 (1996SpZZ).
E(level)	E(gamma)	Comments
1251.641	880.640	I(γ): From ¹⁵⁴Eu β^- decay. Others: 31.8~10 from ¹⁵³Gd(n,γ) and 19.8~25 from ¹⁵⁴Tb ε decay (9.0 h). M(γ): α(K)exp=0.0020~1 compared to α(K)(E1)=0.0012.
1251.641	1128.552	E(γ): From ¹⁵⁴Eu β^- decay M(γ): α(K)exp=0.0009 (1996SpZZ).
1263.778	267.499	E(γ): Multiply placed with undivided intensity I(γ): Multiply placed with undivided intensity M(γ): α(K)exp=0.067~23 (1996SpZZ), which implies E2.
	448.45	E(γ): From ¹⁵⁴Eu β^- decay only
	546.083	I(γ): From ¹⁵⁴Eu β^- decay. Other: 4.2~4 from ¹⁵³Gd(n,γ) where γ is multiply placed. M(γ): α(K)exp=0.024~2 (1996SpZZ) which implies E2, but γ is doubly placed.
	892.775	E(γ): From ¹⁵⁴Eu β^- decay M(γ): α(K)exp=0.0039~3 (1971Ru05,1977Ya04,1996SpZZ). Others: 1972Na21 and 1972Vy04.
	1140.702	E(γ): From ¹⁵⁴Eu β^- decay. M(γ): α(K)exp=0.0020~2 (1977Ya04,1996SpZZ).
1365.878	318.306	I(γ): From Sm(α,xnγ); from ¹⁵³Gd(n,γ) Iγ(318)>Iγ(648) but with large uncertainty. M(γ): DCO and linear polarization (2019Ma70).
	648.3	M(γ): α(K)exp=0.039~7 (1974Go30).
	994.9	M(γ): DCO and linear polarization (2019Ma70).
1397.515	146.01	E(γ): From ¹⁵⁴Eu β^- decay
	156.28	E(γ): From ¹⁵⁴Eu β^- decay