ADOPTED LEVELS, GAMMAS for 123Ce
Author: Jun Chen | Citation: Nucl. Data Sheets 174, 1 (2021) | Cutoff date: 15-Apr-2021
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=-10060 keV SY | S(n)= 10480 keV SY | S(p)= 3030 keV SY | Q(α)= 1880 keV SY | ||
Reference: 2021WA16 |
References: | |||
A | 64Zn(64Zn,αnγ) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0.0 | (5/2) | 3.8 s 2 % ε = 100 % εp > 0. | ||||||
0+X | A | (5/2+) | ||||||
0+Y | A | (7/2+) | ||||||
0+Z | A | (7/2-) | ||||||
270.70+Z 10 | A | (11/2-) | 270.7 1 | 100 | Q | 0+Z | (7/2-) | |
273.00+X 10 | A | (9/2+) | 273.0 1 | 100 | (Q) | 0+X | (5/2+) | |
335.80+Y 10 | A | (11/2+) | 335.8 1 | 100 | Q | 0+Y | (7/2+) | |
638.50+Z 15 | A | (15/2-) | 367.8 1 | 100 | Q | 270.70+Z | (11/2-) | |
669.40+X 15 | A | (13/2+) | 396.4 1 | 100 | Q | 273.00+X | (9/2+) | |
788.90+Y 15 | A | (15/2+) | 453.1 1 | 100 | Q | 335.80+Y | (11/2+) | |
1131.10+Z 18 | A | (19/2-) | 492.6 1 | 100 | (Q) | 638.50+Z | (15/2-) | |
1176.60+X 18 | A | (17/2+) | 507.2 1 | 100 | Q | 669.40+X | (13/2+) | |
1347.10+Y 18 | A | (19/2+) | 558.2 1 | 100 | Q | 788.90+Y | (15/2+) | |
1728.60+Z 20 | A | (23/2-) | 597.5 1 | 100 | Q | 1131.10+Z | (19/2-) | |
1781.20+X 20 | A | (21/2+) | 604.6 1 | 100 | Q | 1176.60+X | (17/2+) | |
1995.20+Y 20 | A | (23/2+) | 648.1 1 | 100 | Q | 1347.10+Y | (19/2+) | |
2407.31+Z 23 | A | (27/2-) | 678.7 1 | 100 | Q | 1728.60+Z | (23/2-) | |
2466.6+X 3 | A | (25/2+) | 685.4 2 | 100 | (Q) | 1781.20+X | (21/2+) | |
2715.11+Y 23 | A | (27/2+) | 719.9 1 | 100 | Q | 1995.20+Y | (23/2+) | |
3131.7+Z 3 | A | (31/2-) | 724.4 2 | 100 | Q | 2407.31+Z | (27/2-) | |
3211.6+X 11 | A | (29/2+) | 745 1 | 100 | 2466.6+X | (25/2+) | ||
3456.1+Y 3 | A | (31/2+) | 741.0 2 | 100 | Q | 2715.11+Y | (27/2+) | |
3874.9+Z 4 | A | (35/2-) | 743.2 2 | 100 | Q | 3131.7+Z | (31/2-) | |
3958.6+X 15 | A | (33/2+) | 747 1 | 100 | 3211.6+X | (29/2+) | ||
4210.7+Y 4 | A | (35/2+) | 754.6 2 | 100 | Q | 3456.1+Y | (31/2+) | |
4658.5+Z 5 ? | A | (39/2-) | 783.6 2 ? | 100 | 3874.9+Z | (35/2-) | ||
4778.6+X 18 ? | A | (37/2+) | 820 1 ? | 100 | 3958.6+X | (33/2+) | ||
4994.1+Y 5 | A | (39/2+) | 783.4 2 | 100 | Q | 4210.7+Y | (35/2+) | |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
5513.5+Z 11 ? | A | (43/2-) | 855 1 ? | 100 | 4658.5+Z | (39/2-) | ||
5833.1+Y 11 ? | A | (43/2+) | 839 1 ? | 100 | 4994.1+Y | (39/2+) |
E(level): From a least-squares fit to γ-ray energies.
Jπ(level): Tentative assignments as suggested by 2012Sm04 based on Jπ assignments of low-lying levels from systematics of neighboring nuclei and cascades of ΔJ=2, quadrupole (most likely E2) transitions built on these states. It should be noted, however, that cascading interband M1/E2 transitions are not reported.
M(γ): From angular anisotropy ratio in (64Zn,αnγ) (2012Sm04). Multiplarity=Q indicates ΔJ=2, quadrupole (most likely E2) transition.
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 1 - Possible ν5/2[413],α=-1/2. | |||||||
0+Y | (7/2+) | ||||||
335.80+Y 10 | (11/2+) | ||||||
788.90+Y 15 | (15/2+) | ||||||
1347.10+Y 18 | (19/2+) | ||||||
1995.20+Y 20 | (23/2+) | 648.1 1 | 100 | Q | 1347.10+Y | (19/2+) | |
2715.11+Y 23 | (27/2+) | 719.9 1 | 100 | Q | 1995.20+Y | (23/2+) | |
3456.1+Y 3 | (31/2+) | 741.0 2 | 100 | Q | 2715.11+Y | (27/2+) | |
4210.7+Y 4 | (35/2+) | 754.6 2 | 100 | Q | 3456.1+Y | (31/2+) | |
4994.1+Y 5 | (39/2+) | 783.4 2 | 100 | Q | 4210.7+Y | (35/2+) | |
5833.1+Y 11 | (43/2+) | 839 1 ? | 100 | 4994.1+Y | (39/2+) | ||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 2 - Possible ν5/2[413],α=+1/2 | |||||||
0+X | (5/2+) | ||||||
273.00+X 10 | (9/2+) | ||||||
669.40+X 15 | (13/2+) | ||||||
1176.60+X 18 | (17/2+) | ||||||
1781.20+X 20 | (21/2+) | 604.6 1 | 100 | Q | 1176.60+X | (17/2+) | |
2466.6+X 3 | (25/2+) | 685.4 2 | 100 | (Q) | 1781.20+X | (21/2+) | |
3211.6+X 11 | (29/2+) | 745 1 | 100 | 2466.6+X | (25/2+) | ||
3958.6+X 15 | (33/2+) | 747 1 | 100 | 3211.6+X | (29/2+) | ||
4778.6+X 18 | (37/2+) | 820 1 ? | 100 | 3958.6+X | (33/2+) | ||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 3 - Possible ν5/2[532],α=-1/2 | |||||||
0+Z | (7/2-) | ||||||
270.70+Z 10 | (11/2-) | ||||||
638.50+Z 15 | (15/2-) | ||||||
1131.10+Z 18 | (19/2-) | ||||||
1728.60+Z 20 | (23/2-) | 597.5 1 | 100 | Q | 1131.10+Z | (19/2-) | |
2407.31+Z 23 | (27/2-) | 678.7 1 | 100 | Q | 1728.60+Z | (23/2-) | |
3131.7+Z 3 | (31/2-) | 724.4 2 | 100 | Q | 2407.31+Z | (27/2-) | |
3874.9+Z 4 | (35/2-) | 743.2 2 | 100 | Q | 3131.7+Z | (31/2-) | |
4658.5+Z 5 | (39/2-) | 783.6 2 ? | 100 | 3874.9+Z | (35/2-) | ||
5513.5+Z 11 | (43/2-) | 855 1 ? | 100 | 4658.5+Z | (39/2-) |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0+X | (5/2+) | E(level): Possible ν5/2[413],α=+1/2. | |
0+Y | (7/2+) | E(level): Possible ν5/2[413],α=-1/2. | |
0+Z | (7/2-) | E(level): Possible ν5/2[532],α=-1/2. | |
270.70+Z | (11/2-) | E(level): Possible ν5/2[532],α=-1/2. | |
273.00+X | (9/2+) | E(level): Possible ν5/2[413],α=+1/2. | |
335.80+Y | (11/2+) | E(level): Possible ν5/2[413],α=-1/2. | |
638.50+Z | (15/2-) | E(level): Possible ν5/2[532],α=-1/2. | |
669.40+X | (13/2+) | E(level): Possible ν5/2[413],α=+1/2. | |
788.90+Y | (15/2+) | E(level): Possible ν5/2[413],α=-1/2. | |
1131.10+Z | (19/2-) | E(level): Possible ν5/2[532],α=-1/2. | |
1176.60+X | (17/2+) | E(level): Possible ν5/2[413],α=+1/2. | |
1347.10+Y | (19/2+) | E(level): Possible ν5/2[413],α=-1/2. | |
1728.60+Z | (23/2-) | E(level): Possible ν5/2[532],α=-1/2. | |
1781.20+X | (21/2+) | E(level): Possible ν5/2[413],α=+1/2. | |
1995.20+Y | (23/2+) | E(level): Possible ν5/2[413],α=-1/2. | |
2407.31+Z | (27/2-) | E(level): Possible ν5/2[532],α=-1/2. | |
2466.6+X | (25/2+) | E(level): Possible ν5/2[413],α=+1/2. | |
2715.11+Y | (27/2+) | E(level): Possible ν5/2[413],α=-1/2. | |
3131.7+Z | (31/2-) | E(level): Possible ν5/2[532],α=-1/2. | |
3211.6+X | (29/2+) | E(level): Possible ν5/2[413],α=+1/2. | |
3456.1+Y | (31/2+) | E(level): Possible ν5/2[413],α=-1/2. | |
3874.9+Z | (35/2-) | E(level): Possible ν5/2[532],α=-1/2. | |
3958.6+X | (33/2+) | E(level): Possible ν5/2[413],α=+1/2. | |
4210.7+Y | (35/2+) | E(level): Possible ν5/2[413],α=-1/2. | |
4658.5+Z | (39/2-) | E(level): Possible ν5/2[532],α=-1/2. | |
E(level) | Jπ(level) | T1/2(level) | Comments |
4778.6+X | (37/2+) | E(level): Possible ν5/2[413],α=+1/2. | |
4994.1+Y | (39/2+) | E(level): Possible ν5/2[413],α=-1/2. | |
5513.5+Z | (43/2-) | E(level): Possible ν5/2[532],α=-1/2. | |
5833.1+Y | (43/2+) | E(level): Possible ν5/2[413],α=-1/2. |
Mass measurement: 2017At01
Other measurements:
1984Ni03 (also 1988WiZN): 123Ce produced and identified in 92Mo(36Ar,αn) reaction at E=196 MeV, β-delayed proton; the delayed protons feed the ground-state band 0+, 2+, 4+, 6+ members of 122Ba.
1988GeZR: 123Ce produced in 92Mo(36Ar,X), E=170-210 MeV; measured Eγ, Iγ. Possible 66-, 113-, 178-keV γ rays from the decay of 123Ce to 123La. Half-life of 3.8 s from 1984Ni03 was checked for only the 113γ
Structure calculations: 2018Se02, 2017Se19, 2016Na19, 2015El05, 2013Ku12, 2012Qi01, 2011Sh13, 2010Af01, 2002Du01, 2002Sa20, 1995Sh16
Q-value: ΔQ(β-)=500, ΔS(n)=500, ΔS(p)=420, ΔQ(α)=360 (syst,2021Wa16)
Q-value: S(2n)=23740 500, S(2p)=4120 330, Q(εp)=7030 300 (syst,2021Wa16)