## Proceedings of the International School of Physics "Enrico Fermi.", Volume 69N. Zanichelli, 1977 - Nuclear physics |

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Page 39

Interactions coupling particles and

Interactions coupling particles and

**collective**field . Our discussion so far has been concerned with the analysis of the singleparticle excitations out of which**collective**excitations might be constructed , and thus we have not done ...Page 50

( 25 ) we thus obtain the estimate for the energy of the

( 25 ) we thus obtain the estimate for the energy of the

**collective**isovector spin mode ( 52 ) ho = hw ( 0 ) V : + Co ) 7.1 MeV . The evidence on M1 excitations in the region ( 7-8 ) MeV in 208Pb is still somewhat uncertain , but is ...Page 140

One can try to make phenomenological models , and an appropriate phenomenology would obviously imply particular

One can try to make phenomenological models , and an appropriate phenomenology would obviously imply particular

**collective**variables . In the nuclear - fission process one describes things in terms of two or three variables [ 3 ] .### What people are saying - Write a review

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### Contents

Rotational degrees of freedom Deformation and | 3 |

86 | 8 |

the framework of a course such as the present The topics selected by | 10 |

Copyright | |

41 other sections not shown

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### Common terms and phrases

addition angular momentum appears approximation associated backbending band calculated closed collective compared comparison components configurations consider contributions corresponding coupling cross-sections deformation density dependence describe determined discussed distribution effects electron equations estimate evidence example excitation energy expected experiment experimental expression fact factor field given gives ground Hamiltonian hole included increase indicate inertia interaction Lett levels limit mass matrix elements measured modes motion neutron Nucl nuclear nuclei nucleons observed obtained operator orbits oscillator pairing parameters particle particular peak Phys physical possible potential predictions present processes proton quadrupole reaction region relation relative resonance respect rotational rule scattering seen shape shell model shown in fig shows simple single single-particle space spectra spectrum strength strong structure surface symmetry theory tion transfer transition values vibrational wave functions