**ADOPTED LEVELS, GAMMAS for ^{129}Cd**

__Author:__ Balraj Singh **|** __Citation:__ ENSDF **|** __Cutoff date:__ 31-JUL-2015

__Authors:__ Janos Timar and Zoltan Elekes, Balraj Singh **|** __Citation:__ Nucl. Data Sheets 121, 143 (2014) **|** __Cutoff date:__ 31-May-2014

Full ENSDF file | Adopted Levels (PDF version)

Q(β-)=9330 keV SY | S(n)= 4340 keV SY | S(p)= 15900 keV SY | Q(α)= -11710 keV SY | ||

Reference: 2012WA38 |

References: | |||

A | ^{9}Be(^{238}U,Fγ) |

E(level) (keV) | XREF | J^{π}(level) | T_{1/2}(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |

0 | A | 11/2- | 154 ms 2 % β ^{-} = 100 % β ^{-}n > 0 | |||||

0+X | 3/2+ | 146 ms 8 % β ^{-} = 100 % β ^{-}n > 0 | ||||||

1181 | A | (13/2-) | 1181 | 100 | 0 | 11/2- | ||

1587 | A | (15/2-) | 406 1587 | 100 ≈33 | (M1) | 1181 0 | (13/2-) 11/2- | |

1940 | A | (21/2+) | 3.6 ms 2 % IT = 100 | 353 | 100 | (E3) | 1587 | (15/2-) |

M(γ): From measured yields of γ rays and conversion electrons for the 353 and 406 transitions

E(level) (keV) | J^{π}(level) | T_{1/2}(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |

1587 | (15/2-) | 406 | (M1) | 0.0111 | α=0.0111 | |

1940 | (21/2+) | 3.6 ms 2 % IT = 100 | 353 | (E3) | 0.0665 | B(E3)(W.u.)=0.47 3, α=0.0665 |

__Additional Level Data and Comments__:

E(level) | J^{π}(level) | T_{1/2}(level) | Comments |

0 | 11/2- | 154 ms 2 % β ^{-} = 100 % β ^{-}n > 0 | μ=-0.7063 5 (2013Yo02,2014StZZ), Q=+0.570 26 (2013Yo02,2014StZZ) Theoretical %β ^{-}n=0.07 (1997Mo25), 0.77, 0.94 (2002Pf04).E(level): Ordering of the 406-1181 γ cascade is not established experimentally, but the level ordering in energies and spins is predicted by shell-model calculations. Ordering of the 11/2- and 3/2 ^{+} ms-activities of ^{129}Cd is not established experimentally, it is predicted in shell-model calculations by 2014Ta29. Also in 1996Bo11 shell-model calculations, h_{11/2} is predicted to be the ground state. 1995Mo27 also give 11/2- for ground state in theoretical calculations. Half-lives are from measured decay-time distributions of γ-ray transitions in coincidence with parent β^{-} decay (2015Ta13). J ^{π}(level): From shell-model predictions (2014Ta29). T _{1/2}(level): Ordering of the 11/2- and 3/2^{+} ms-activities of ^{129}Cd is not established experimentally, it is predicted in shell-model calculations by 2014Ta29. Also in 1996Bo11 shell-model calculations, h_{11/2} is predicted to be the ground state. 1995Mo27 also give 11/2- for ground state in theoretical calculations. Half-lives are from measured decay-time distributions of γ-ray transitions in coincidence with parent β^{-} decay (2015Ta13). |

0+X | 3/2+ | 146 ms 8 % β ^{-} = 100 % β ^{-}n > 0 | μ=+0.8481 8 (2013Yo02,2014StZZ), Q=+0.132 9 (2013Yo02,2014StZZ) E(level): Ordering of the 406-1181 γ cascade is not established experimentally, but the level ordering in energies and spins is predicted by shell-model calculations. Ordering of the 11/2- and 3/2 ^{+} ms-activities of ^{129}Cd is not established experimentally, it is predicted in shell-model calculations by 2014Ta29. Also in 1996Bo11 shell-model calculations, h_{11/2} is predicted to be the ground state. 1995Mo27 also give 11/2- for ground state in theoretical calculations. Half-lives are from measured decay-time distributions of γ-ray transitions in coincidence with parent β^{-} decay (2015Ta13). J ^{π}(level): From shell-model predictions (2014Ta29). T _{1/2}(level): Ordering of the 11/2- and 3/2^{+} ms-activities of ^{129}Cd is not established experimentally, it is predicted in shell-model calculations by 2014Ta29. Also in 1996Bo11 shell-model calculations, h_{11/2} is predicted to be the ground state. 1995Mo27 also give 11/2- for ground state in theoretical calculations. Half-lives are from measured decay-time distributions of γ-ray transitions in coincidence with parent β^{-} decay (2015Ta13). |

1181 | (13/2-) | Ordering of the 406-1181 γ cascade is not established experimentally, but the level ordering in energies and spins is predicted by shell-model calculations. J ^{π}(level): From shell-model predictions (2014Ta29). | |

1587 | (15/2-) | Configuration=νh_{11/2}^{-1}~#πg_{9/2}^{-2} (2014Ta29).J ^{π}(level): From shell-model predictions (2014Ta29). | |

1940 | (21/2+) | 3.6 ms 2 % IT = 100 | Configuration=νh_{11/2}^{-1}~#π(g_{9/2}^{-1}p_{1/2}^{-1}) mixed with νh_{11/2}^{-1}~#π(g_{9/2}^{-1}p_{3/2}^{-1}) and νh_{11/2}^{-1}~#π(g_{9/2}^{-1}f_{5/2}^{-1}) (2014Ta29).J ^{π}(level): From shell-model predictions (2014Ta29). |

1986Go10:

^{129}Cd produced by thermal neutron fission of^{235}U at OSIRIS, Studsvik facility, measured half-life from decay curve for a 281-keV γ ray, but a γ ray of this energy has not been reported in the detailed study of decay of^{129}Cd by 2015Ta132003ArZX, 2005Kr20:

^{129}Cd produced through spallation of Uranium using 1 GeV p beam at ISOLDE-CERN facility, Laser isotope separator. Measured β^{-}n, half-lives by decay curve for delayed neutrons, proportional counter. Two ms-activities assigned to^{129}Cd2015Ta13: measured half-lives of the two activities of

^{129}Cd at RIBF-RIKEN facility2015Lo04: measured half-life of a single activity at RIBF-RIKEN facility

Q-value: Estimated (2012Wa38) uncertainties: 200 for Q(β

^{-}) and S(n), 360 for S(p), 450 for Q(α)Q-value: Q(β

^{-}n)=2570250, S(2n)=11160200, S(2p)=30650540(syst,2012Wa38)