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

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Page 338

If we consider

and a deformation parameter Bu , then for the excitation of one phonon of energy

ho , B ( 0 , L ) = ( 3AR - B2 / 47 ) 2 ( where R is the equivalent uniform radius ) .

If we consider

**simple**shape oscillations of the mass of a nucleus with A nucleonsand a deformation parameter Bu , then for the excitation of one phonon of energy

ho , B ( 0 , L ) = ( 3AR - B2 / 47 ) 2 ( where R is the equivalent uniform radius ) .

Page 378

A

we can also simply derive the decrease in the 0 - 2 separation in the nuclei

considered here as compared to semi - magic nuclei . Although the effect of

mixing ...

A

**simple**description of the resulting low - lying states can be given descriptionwe can also simply derive the decrease in the 0 - 2 separation in the nuclei

considered here as compared to semi - magic nuclei . Although the effect of

mixing ...

Page 423

spin values increase , the deviations from the

increase until for a J value of about 8 the band picture appears to lose its

usefulness altogether as regards energy placements . This phenomenon is in

part apparently ...

spin values increase , the deviations from the

**simple**rotor predictions alsoincrease until for a J value of about 8 the band picture appears to lose its

usefulness altogether as regards energy placements . This phenomenon is in

part apparently ...

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### Contents

A BOHR Some aspects of rotational motion | 3 |

B R MOTTELSON Elementary excitations in the nucleus | 42 |

R BÉs and R A BROGLIA Nuclear superfluidity | 55 |

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addition angular momentum appears approximation associated backbending band calculated closed collective compared comparison components configurations considered 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 moments motion neutron Nucl nuclear nuclei nucleons observed obtained operator orbits oscillator pairing parameters particle particular peak Phys physical possible potential predictions present processes protons 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 structure surface symmetry theory tion transfer transition values vibrational wave functions