ADOPTED LEVELS for 162Eu
Author: N. Nica | Citation: Nucl. Data Sheets 195, 1 (2024) | Cutoff date: 19-Sep-2023
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=5558 keV 4 | S(n)= 5003 keV 10 | S(p)= 9340 keV 7 | Q(α)= -2041.7 keV 16 | ||
Reference: 2021WA16 |
References: | |||
A | 162Sm β- decay | B | 162Eu IT decay |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) |
0.0 | AB | (6+) | 11.4 s 6 % β- = 100 |
158.4 24 | B | (3-) | % IT = ? % β- = ? |
Jπ(level): Adopted values proposed by 2021Wa16 (in order to explain the relatively strong β feeding of the 2+, 3+, 4+, 6+ and 6- levels) to be: 6+, ν5/2[413]~#ν7/2[633] for g.s. and 3-, ν5/2[413]~#ν1/2[521] for 158.4 isomer, respectively, by comparing with neghboring nuclei (see 2021Wa04 for the list of them). 2018Ha19 proposed (1+), π5/2[413]~#ν7/2[633] for g.s. and (6+), π5/2[413]~#ν7/2[633] for isomer assuming that they separated the β decay of the isomer based on T1/2, which was contradicted by 2021Wa04 T1/2 measurements.
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
Measured Q(β-): 5577 35 (2014Ha38), 5585 60 (2010Ha38), 5575 60 (2007Ha57)
For unplaced γ’s see 162Sm β- decay dataset
Q-value: S(2n)=11372.1 16, S(2p)=20406.2 24 (2021Wa16)