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

### From inside the book

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Page 5

They can be extended to deformations that are invariant with

subgroup of the full rotation group . One may also consider a combination of

rotation with other symmetry operations , such as space and time reflection . For

example ...

They can be extended to deformations that are invariant with

**respect**to anysubgroup of the full rotation group . One may also consider a combination of

rotation with other symmetry operations , such as space and time reflection . For

example ...

Page 16

The highly excited states on the yrast line are unstable with

emission ( nucleons and a - particles in particular ) . If the particle carries away 1

units of angular momentum , the reduction in rotational energy gives an effective

...

The highly excited states on the yrast line are unstable with

**respect**to particleemission ( nucleons and a - particles in particular ) . If the particle carries away 1

units of angular momentum , the reduction in rotational energy gives an effective

...

Page 19

The Coriolis term proportional to ji violates the assumed axial symmetry and time

reversal in variance of H . , but the Hamiltonian ( 32 ) remains invariant with

about ...

The Coriolis term proportional to ji violates the assumed axial symmetry and time

reversal in variance of H . , but the Hamiltonian ( 32 ) remains invariant with

**respect**to space reflection P and with**respect**to a rotation R = R ( 1 ) of 180°about ...

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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