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

### From inside the book

Results 1-3 of 9

Page 50

The

derives from the fact that only a relatively small fraction of the nucleons in the

filled shells has unsaturated spins and thus is able to participate in the pure spin -

flip ...

The

**reason**for the relative weakness of the collective effects in the Mi modederives from the fact that only a relatively small fraction of the nucleons in the

filled shells has unsaturated spins and thus is able to participate in the pure spin -

flip ...

Page 175

The main

deformed region is around mass 155 in Er , and , as it is approached , the

moment of inertia I becomes much smaller , causing an incrcase in the angular

frequency for a ...

The main

**reason**for this change with mass number is that the edge of thedeformed region is around mass 155 in Er , and , as it is approached , the

moment of inertia I becomes much smaller , causing an incrcase in the angular

frequency for a ...

Page 524

... we are interested in , only one solution E , = 5 . 02 MeV is obtained , while the

basis includes three unperturbed states . The

found in the small effective mass of the neutron pairing removal mode , i . e .

... we are interested in , only one solution E , = 5 . 02 MeV is obtained , while the

basis includes three unperturbed states . The

**reason**for such a behaviour can befound in the small effective mass of the neutron pairing removal mode , i . e .

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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