### Abstract

The effect of symmetry of the space co-ordinates of the nucleons of a nucleus on the integrated bremsstrahlung-weighted cross-section for electric dipole absorption σ_{b} has been investigated. It is found that the relationship of σ_{b} to the mean square radius of the nucleus is really model dependent. For a system heavier than Is nuclei, for example,^{6}Li it is shown, in principle, that its σ_{b} is directly proportional to the mean square radius of^{6}Li in a simple shell model picture which was believed to be contrary thus far. For a modified shell model wave function σ_{b} for^{6}Li has been calculated and found to be close to the experimental value. The correction due to the centre-of-mass motion brings the r.m.s. radius of^{6}Li in exact agreement to the value observed by electron scattering.

Original language | English |
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Pages (from-to) | 513-518 |

Number of pages | 6 |

Journal | Lettere al Nuovo Cimento |

Volume | 33 |

Issue number | 16 |

DOIs | |

State | Published - Apr 1 1982 |