ADOPTED LEVELS, GAMMAS for 21O
Author: R.B. Firestone | Citation: Nucl. Data Sheets 127, 1 (2015) | Cutoff date: 15-Jan-2015
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=8110 keV 12 | S(n)= 3806 keV 12 | S(p)= 20990 keV 60 | Q(α)= -15394 keV 21 | ||
Reference: 2012WA38 |
References: | |||
A | 21N β- decay:83 MS | B | 22N β-n decay:20 MS |
C | 18O(18O,15O) | D | 9Be(36S,X) |
E | 2H(20O,p),(20O,pγ) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | Final Levels | |
0.0 | ABCDE | (5/2+) | 3.42 s 10 % β- = 100 | ||||
1220 3 | ABCDE | (1/2+) | 1220 3 | 100 | 0.0 | (5/2+) | |
2133 5 | CDE | 2133 5 | 100 | 0.0 | (5/2+) | ||
3026 6 | CD | (7/2+) | 883 4 3026 8 | 59 8 100 8 | 2133 0.0 | (5/2+) | |
3073 10 | CD | (7/2+) | 3073 10 | 100 | 0.0 | (5/2+) | |
4.77E3 10 | E | 3/2+ | |||||
4927 12 | BCD | (9/2+) | |||||
6.14E3 8 | A E | (1/2-,3/2-) | |||||
6.80E3 10 | A | (1/2-,3/2-) | |||||
6.91E3 7 | A | (1/2-,3/2-) | |||||
9.02E3 12 | A | (1/2-,3/2-) | |||||
9.04E3 22 | A | (1/2-,3/2-) |
Jπ(level): For lower levels from shell model calculations (2004St08), although systematics of t=3/2 levels suggests that the 1218 and 2133 levels should have negative parity. For higher level assuming allowed β decay from Jπ=1/2-.
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
Populated by 22N β-n decay (2003Yo02), T1/2=16.5 ms +85-48.