### Abstract

The nuclear g-factor of the T_{1/2} = 28 ns high-spin isomer in ^{149}Dy has been measured using the γ-ray time-differential perturbed angular distribution (TDPAD) technique with a pulsed beam of ^{132}Xe. The experimental value g=+0.41(6) is in good agreement with a fully aligned multi-quasiparticle configuration π(h^{2}_{11/2})⊗ν (f_{7/2}h_{9/2}i_{13/2}(d^{-2} _{3/2})_{0}). This result indicates that only neutron particle-hole excitations across the N=82 shell-closure occur at this isomeric state.

Original language | English |
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Pages (from-to) | 365-378 |

Number of pages | 14 |

Journal | Nuclear Physics A |

Volume | 728 |

Issue number | 3-4 |

DOIs | |

Publication status | Published - Dec 15 2003 |

Externally published | Yes |

### Keywords

- Dy deduced high-spin isomer g factor, configuration
- Measured delayed E, I (θ,H,t)
- Nuclear reactions Mg(Xe, xn)Dy, E=7.0 MeV/nucleon
- Time-differential perturbed angular distribution method, deformed independent particle model analysis

### ASJC Scopus subject areas

- Nuclear and High Energy Physics

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## Cite this

Watanabe, H., Ueno, H., Kameda, D., Sato, W., Yoshimi, A., Miyoshi, H., Kishida, T., Kobayashi, Y., Odahara, A., Gono, Y., & Asahi, K. (2003). g-Factor of the high-spin isomer in

^{149}Dy and a multi-quasiparticle configuration caused by the N=82 core excitations.*Nuclear Physics A*,*728*(3-4), 365-378. https://doi.org/10.1016/j.nuclphysa.2003.09.007