## Abstract

The electric quadrupole moment Q for the ground state of [Formula Presented] was determined by the [Formula Presented]-NMR method applied to spin-polarized projectile fragments. From the measured quadrupole coupling constant, [Formula Presented] for [Formula Presented] in a Mg single crystal stopper the Q moment was deduced as [Formula Presented] As was the case in the previous [Formula Presented] result, the obtained Q moment is very close to that for the [Formula Presented] isotope [Formula Presented] in sharp contrast to the results of conventional shell-model calculations using constant effective charges. Comparison of the shell-model calculations indicates substantial reduction of the [Formula Presented] effective charges for isotopes with large [Formula Presented] ratios. The results were well accounted for in terms of [Formula Presented] dependent [Formula Presented] polarization charges as predicted by Bohr and Mottelson and by incorporating the decoupling feature of loosely bound particles.

Original language | English |
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Pages (from-to) | 9 |

Number of pages | 1 |

Journal | Physical Review C - Nuclear Physics |

Volume | 67 |

Issue number | 6 |

DOIs | |

Publication status | Published - 2003 |

## ASJC Scopus subject areas

- Nuclear and High Energy Physics