ADOPTED LEVELS, GAMMAS for 155Yb
Author: N. Nica | Citation: Nucl. Data Sheets 160, 1 (2019) | Cutoff date: 21-Oct-2019
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-7.96×103 keV 3 | S(n)= 8642 keV 24 | S(p)= 3364 keV 22 | Q(α)= 5338.8 keV 21 | ||
| S(2n)= 19437 keV 24 | S(2p)= 4612 keV 22 | Q(EC)= 6123 keV 19 | Q(ECp)= 4813 keV 17 | ||
| Reference: 2017WA10 | |||||
| References: | |||
| A | 159Hf α decay | B | 102Pd(58Ni,4PNG) |
| C | 144Sm(16O,5nγ) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | ABC | (7/2-) | 1.793 s 20 % ε = 11 5 % α = 89 5 | |||||
| 168.7 3 | BC | (9/2-) | 168.7 4 | 100 | (M1+E2) | 0.0 | (7/2-) | |
| 666.00 19 | C | (11/2-) | 666.0 2 | 100 | E2 | 0.0 | (7/2-) | |
| 839.4 3 | C | (13/2+) | 173.4 2 | 100 | D(+Q) | 666.00 | (11/2-) | |
| 983.8 4 | BC | (13/2-) | 317.8 5 815.1 2 | 100 | E2 | 666.00 168.7 | (11/2-) (9/2-) | |
| 1178.5 3 | C | (15/2-) | 512.5 3 | 100 | 666.00 | (11/2-) | ||
| 1527.5 3 | C | (17/2+) | 349.0 3 688.1 2 | 71.5 25 100 | D(+Q) E2 | 1178.5 839.4 | (15/2-) (13/2+) | |
| 1592.8 4 | BC | (17/2-) | 414.3 5 609.0 2 | 100 | E2 | 1178.5 983.8 | (15/2-) (13/2-) | |
| 1912.8 5 | BC | (21/2-) | 320.0 3 | 100 | E2 | 1592.8 | (17/2-) | |
| 2033.7 5 | C | (21/2+) | 506.2 3 | 100 | 1527.5 | (17/2+) | ||
| 2494.4 6 | C | (25/2+) | 460.7 3 | 100 | E2 | 2033.7 | (21/2+) | |
| 2526.6 6 | C | (23/2-) | 613.8 5 | 100 | (M1+E2) | 1912.8 | (21/2-) | |
| 2768.8 6 | C | (25/2-) | 242.2 5 856.0 4 | 35.9 7 100 1 | (M1+E2) | 2526.6 1912.8 | (23/2-) (21/2-) | |
| 3520.3 8 | C | (29/2-) | 751.5 5 | 100 | E2 | 2768.8 | (25/2-) | |
| 3740.8 9 | C | (33/2-) | 220.5 5 | 100 | E2 | 3520.3 | (29/2-) | |
| 4183.4 11 | C | (35/2-) | 442.6 5 | 100 | (M1+E2) | 3740.8 | (33/2-) | |
| 4549.6 12 | C | (37/2) | 366.2 5 | 100 | D | 4183.4 | (35/2-) | |
E(level): From least-squares fit to Eγ’s
M(γ): From mesured experimental ratio RADO=Iγ(135|’)Iγ(90|’) in 144Sm(16O,5nγ) dataset (2016Li41) with Q adopted as E2 (M2 is unlikely), D+Q adopted as (M1+E2) (E1+M2 is less likely) and relatively pure d adopted as d(+Q). According to 2016Li41 all transitions are stretched
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 1 - Based on (νf7/2)7/2-. Levels (7/2-), (11/2-), | |||||||
| 0.0 | (7/2-) | 1.793 s 20 % ε = 11 5 % α = 89 5 | |||||
| 666.00 19 | (11/2-) | 666.0 2 | 100 | E2 | 0.0 | (7/2-) | |
| 1178.5 3 | (15/2-) | 512.5 3 | 100 | 666.00 | (11/2-) | ||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 2 - Based on (νh9/2)9/2-. Levels (9/2-), (13/2-), | |||||||
| 168.7 3 | (9/2-) | ||||||
| 983.8 4 | (13/2-) | 317.8 5 815.1 2 | 100 | E2 | 666.00 168.7 | (11/2-) (9/2-) | |
| 1592.8 4 | (17/2-) | 414.3 5 609.0 2 | 100 | E2 | 1178.5 983.8 | (15/2-) (13/2-) | |
| 1912.8 5 | (21/2-) | 320.0 3 | 100 | E2 | 1592.8 | (17/2-) | |
| 2768.8 6 | (25/2-) | 242.2 5 856.0 4 | 35.9 7 100 1 | (M1+E2) | 2526.6 1912.8 | (23/2-) (21/2-) | |
| 3520.3 8 | (29/2-) | 751.5 5 | 100 | E2 | 2768.8 | (25/2-) | |
| 3740.8 9 | (33/2-) | 220.5 5 | 100 | E2 | 3520.3 | (29/2-) | |
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 3 - Based on (νi13/2)13/2+. Levels (13/2+), (17/2+), | |||||||
| 839.4 3 | (13/2+) | ||||||
| 1527.5 3 | (17/2+) | 349.0 3 688.1 2 | 71.5 25 100 | D(+Q) E2 | 1178.5 839.4 | (15/2-) (13/2+) | |
| 2033.7 5 | (21/2+) | 506.2 3 | 100 | 1527.5 | (17/2+) | ||
| 2494.4 6 | (25/2+) | 460.7 3 | 100 | E2 | 2033.7 | (21/2+) | |
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 168.7 | (9/2-) | 168.7 4 | (M1+E2) | 0.62 | α=0.62 15, α(K)=0.45 19, α(L)=0.130 33, α(M)=0.0306 89, α(N)=0.0071 20, α(O)=0.00090 18, α(P)=2.5×10-5 14 | |
| 666.00 | (11/2-) | 666.0 2 | E2 | 0.00892 | α=0.00892, α(K)=0.00723 11, α(L)=0.001311 19, α(M)=0.000299 5, α(N)=6.97×10-5 10, α(O)=9.49E-6 14, α(P)=4.04E-7 6 | |
| 983.8 | (13/2-) | 815.1 2 | E2 | 0.00569 | α=0.00569, α(K)=0.00468 7, α(L)=0.000785 11, α(M)=0.0001776 25, α(N)=4.14×10-5 6, α(O)=5.73E-6 8, α(P)=2.63E-7 4 | |
| 1527.5 | (17/2+) | 688.1 2 | E2 | 0.00828 | α=0.00828, α(K)=0.00673 10, α(L)=0.001203 17, α(M)=0.000274 4, α(N)=6.39×10-5 9, α(O)=8.72E-6 13, α(P)=3.76E-7 6 | |
| 1592.8 | (17/2-) | 609.0 2 | E2 | 0.01099 | α=0.01099, α(K)=0.00884 13, α(L)=0.001669 24, α(M)=0.000382 6, α(N)=8.90×10-5 13, α(O)=1.203E-5 17, α(P)=4.91E-7 7 | |
| 1912.8 | (21/2-) | 320.0 3 | E2 | 0.0610 | α=0.0610, α(K)=0.0442 7, α(L)=0.01289 19, α(M)=0.00305 5, α(N)=0.000704 11, α(O)=8.91×10-5 13, α(P)=2.29E-6 4 | |
| 2494.4 | (25/2+) | 460.7 3 | E2 | 0.0220 | α=0.0220, α(K)=0.01714 25, α(L)=0.00379 6, α(M)=0.000880 13, α(N)=0.000204 3, α(O)=2.69×10-5 4, α(P)=9.33E-7 14 | |
| 2526.6 | (23/2-) | 613.8 5 | (M1+E2) | 0.0175 | α=0.0175 68, α(K)=0.0145 59, α(L)=0.00231 68, α(M)=5.2×10-4 15, α(N)=1.22E-4 35, α(O)=1.71E-5 54, α(P)=8.5E-7 37 | |
| 2768.8 | (25/2-) | 242.2 5 | (M1+E2) | 0.212 | α=0.212 69, α(K)=0.166 70, α(L)=0.0361 9, α(M)=0.0084 5, α(N)=0.00195 9, α(O)=0.000258 10, α(P)=9.5×10-6 48 | |
| 3520.3 | (29/2-) | 751.5 5 | E2 | 0.00679 | α=0.00679, α(K)=0.00556 8, α(L)=0.000959 14, α(M)=0.000218 3, α(N)=5.08×10-5 8, α(O)=6.98E-6 10, α(P)=3.12E-7 5 | |
| 3740.8 | (33/2-) | 220.5 5 | E2 | 0.195 | α=0.195, α(K)=0.1251 20, α(L)=0.0534 9, α(M)=0.01286 22, α(N)=0.00296 5, α(O)=0.000359 6, α(P)=5.98×10-6 9 | |
| 4183.4 | (35/2-) | 442.6 5 | (M1+E2) | 0.040 | α=0.040 16, α(K)=0.033 15, α(L)=0.0056 14, α(M)=0.0013 3, α(N)=0.00030 7, α(O)=4.1×10-5 12, α(P)=1.93E-6 91 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | (7/2-) | 1.793 s 20 % ε = 11 5 % α = 89 5 | Q=-0.5 3, μ=-0.913 22 1998Ba08 (also 1999BaZW, 2000Ba16, 2000Se22) report Δ<r2>(155Yb,168Yb)=1.316 fm2 8. 2002BaZX report Δ<r2>(174Yb,155Yb)=-1.630 fm2 8. Some of these papers also indicate that there is essentially no change in deformation for isotopes of Yb with α=154, 155, and 156. In an evaluation of the nuclear rms charge radii, 2013An02 report <r2>1/2=5.1040 fm 110. E(level): Based on (νf7/2)7/2-. Levels (7/2-), (11/2-),. |
| 168.7 | (9/2-) | E(level): Based on (νh9/2)9/2-. Levels (9/2-), (13/2-),. | |
| 666.00 | (11/2-) | E(level): Based on (νf7/2)7/2-. Levels (7/2-), (11/2-),. | |
| 839.4 | (13/2+) | E(level): Based on (νi13/2)13/2+. Levels (13/2+), (17/2+),. | |
| 983.8 | (13/2-) | E(level): Based on (νh9/2)9/2-. Levels (9/2-), (13/2-),. | |
| 1178.5 | (15/2-) | E(level): Based on (νf7/2)7/2-. Levels (7/2-), (11/2-),. | |
| 1527.5 | (17/2+) | E(level): Based on (νi13/2)13/2+. Levels (13/2+), (17/2+),. | |
| 1592.8 | (17/2-) | E(level): Based on (νh9/2)9/2-. Levels (9/2-), (13/2-),. | |
| 1912.8 | (21/2-) | E(level): Based on (νh9/2)9/2-. Levels (9/2-), (13/2-),. | |
| 2033.7 | (21/2+) | E(level): Based on (νi13/2)13/2+. Levels (13/2+), (17/2+),. | |
| 2494.4 | (25/2+) | E(level): Based on (νi13/2)13/2+. Levels (13/2+), (17/2+),. | |
| 2768.8 | (25/2-) | E(level): Based on (νh9/2)9/2-. Levels (9/2-), (13/2-),. | |
| 3520.3 | (29/2-) | E(level): Based on (νh9/2)9/2-. Levels (9/2-), (13/2-),. | |
| 3740.8 | (33/2-) | E(level): Based on (νh9/2)9/2-. Levels (9/2-), (13/2-),. |
| E(level) | E(gamma) | Comments |
| 2033.7 | 506.2 | M(γ): based on ADO ratio this should be D+Q; 2016Li41 adopt Q as in band transition |
| 2768.8 | 856.0 | M(γ): based on ADO ratio this should be D+Q; 2016Li41 adopt Q as in band transition |
All data on excited states are from 144Sm(16O,5nγ) dataset (2016Li41) that includes with few adjustments those from 102Pd(58Ni,4pn) dataset (2001Di17).