## Proceedings of the International School of Physics "Enrico Fermi.", Volume 62N. Zanichelli, 1976 - Nuclear physics |

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Page 190

There is a peculiar situation when compound nuclei may also de-excite per

height on the competition between

There is a peculiar situation when compound nuclei may also de-excite per

**fission**process. We shall come in the next Subsection to the effect of the barrierheight on the competition between

**fission**and other de-excitation mechanisms.Page 195

As we shall see, when we shall study the angular distribution of

the fraction of energy which goes into rotation around the axis parallel to the

symmetry axis is small, and for those cases of

As we shall see, when we shall study the angular distribution of

**fission**fragments,the fraction of energy which goes into rotation around the axis parallel to the

symmetry axis is small, and for those cases of

**fission**there is no great ...Page 452

In recent years the

understood, in particular the first step of the process, that is the deformation of the

fissile nucleus. In the frame of the liquid-drop model (LDM) BoHR and WHEELER

[1] ...

In recent years the

**fission**mechanism of heavy nuclei has been widelyunderstood, in particular the first step of the process, that is the deformation of the

fissile nucleus. In the frame of the liquid-drop model (LDM) BoHR and WHEELER

[1] ...

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### Contents

Introduction | 1 |

Generator coordinate DWBA for heavy ions | 8 |

Simple ideas on reaction mechanisms | 19 |

Copyright | |

44 other sections not shown

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### Common terms and phrases

angle angular distribution angular momentum approximation assumed average band barrier calculation channel cluster collision complete compound nucleus configurations consider core corresponding Coulomb coupling cross-section curve decay defined deformation depends described direct discussed distance effective elastic scattering emission emitted example excitation energy excitation function expected experimental experiments expression factor final fission fragments given gives Hamiltonian Hartree-Fock heavy ions higher integral interaction interesting internal level density levels mass matrix elements means measured mechanism neutron nuclear nucleons observed obtained operator optical orbital oscillator parameter particle Phys possible potential present probability projectile reaction region relative residual resonances respectively rotational scattering shape shell model shown simple single-particle space spectra spectrum structure surface theory tion transfer transition values wave function X-rays yrast