ADOPTED LEVELS, GAMMAS for 22O
Author: M. Shamsuzzoha Basunia | Citation: Nucl. Data Sheets 127, 69(2015) | Cutoff date: 1-Apr-2015
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=6490 keV 58 | S(n)= 6850 keV 58 | S(p)= 23.26×103 keV 11 | Q(α)= -18060 keV 64 | ||
| Reference: 2012WA38 |
| References: | |||
| A | 22N β- decay | B | BE(36S,X),12C(23O,xnγ) |
| C | 22O(p,p’),(d,d’γ) | D | 197Au(22O,22O’) |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | AB D | 0+ | 2.25 s 9 % β- = 100 % β-n < 22 | |||||
| 3199 8 | ABCD | 2+ | 0.40 ps 15 | 3199 8 | 100 | E2 | 0.0 | 0+ |
| 4584 9 | AB | (3+) | 1385 3 | 100 | 3199 | 2+ | ||
| 4909 90 ? | B | (0+) | 1710 90 ? | 100 | 3199 | 2+ | ||
| 5800? | B | 1216? 2600? | | 4584 3199 | (3+) 2+ | |||
| 6512 10 | AB | (2+) | 3312 5 | | 3199 | 2+ | ||
| 6938 11 | B | (4+) | 2354 6 3710 90 | 100 35 75 35 | 4584 3199 | (3+) 2+ | ||
| 7649 | A | (0-,1-,2-) | ||||||
| 8783 | A | (0-,1-,2-) | ||||||
| 10554 | A | (0-,1-,2-) | ||||||
| 13298 | A | (0-,1-,2-) | ||||||
E(level): From γ-ray energies. Levels at 7649 keV and above from 22N β- decay
Jπ(level): From comparison with shell model calculations (22N β- decay), except otherwise noted.
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Additional Data |
| 3199 | 2+ | 0.40 ps 15 | 3199 8 | E2 | B(E2)(W.u.)=1.2 5 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 3199 | 2+ | 0.40 ps 15 | XREF: d(3170). |
| 7649 | (0-,1-,2-) | E(level): Level decays by neutrons. | |
| 8783 | (0-,1-,2-) | E(level): Level decays by neutrons. | |
| 10554 | (0-,1-,2-) | E(level): Level decays by neutrons. | |
| 13298 | (0-,1-,2-) | E(level): Level decays by neutrons. |
| E(level) | E(gamma) | Comments |
| 3199 | 3199 | M(γ): Assigned by evaluator based on B(E2)|^ in 197Au(22O,22O’) (2000Th11). |
| 4584 | 1385 | E(γ): Weighted average of data from (36S,X),(23O,xnγ) and 22N β- decay |
| 5800 | 1216 | E(γ): From level-energy difference | 2600 | E(γ): From level-energy difference |
| 6512 | 3312 | E(γ): From 22N β- decay. Other 3310 90 (36S,X),(23O,xnγ) |
Other reactions:
4He(22O,22O’): 2004TaZZ - Measured 3200- and 1400-keV γ-rays in cascade.
9Be(26Ne,2px): 2008Fr10 - Studied neutron-unbound states in 22O - not found.
C(22O,22O): 2011Ka36 - Measured interaction cross section=1123 mb 24; uncertainty 18.5 mb (stat), 15.3 mb (syst). Deduced rms matter radius=2.75 fm 15 using Fermi density and 2.75 fm 7 using harmonic oscillator density (Glauber model)