## Neutron-nucleus collisions, a probe of nuclear structure: (Burr Oak State Park, Ohio, 1984) |

### From inside the book

Results 1-3 of 29

Page 21

The semi-microscopic (NN) potential from the Paris group is obtained by G-parity

operation on the Paris (NN) potential together with a readjustment of the

phenomeno- logical core parameters and the introduction of an energy and state

dependent absorption to account for the prevailing annihilation. ... The real

surface region which will be enhanced by the addition of the attractive Coulomb

potential.

The semi-microscopic (NN) potential from the Paris group is obtained by G-parity

operation on the Paris (NN) potential together with a readjustment of the

phenomeno- logical core parameters and the introduction of an energy and state

dependent absorption to account for the prevailing annihilation. ... The real

**central potential**is repulsive in the centre and shows an attractive pocket in thesurface region which will be enhanced by the addition of the attractive Coulomb

potential.

Page 126

The Imaginary

geometry. We accomplished this while using volume form for the imaginary

scalar and vector potentials through the cancellation shown In Fig. 2. In this figure

the large real vector and scalar potentials for the best fit to p- Ca at 35 MeV (see

Fig. 5) are shown along with the positive, short range Imaginary scalar potential

and the negative long range Imaginary vector potential. These potentials produce

the ...

The Imaginary

**central potential**at low energies ordinarily has a surface peakedgeometry. We accomplished this while using volume form for the imaginary

scalar and vector potentials through the cancellation shown In Fig. 2. In this figure

the large real vector and scalar potentials for the best fit to p- Ca at 35 MeV (see

Fig. 5) are shown along with the positive, short range Imaginary scalar potential

and the negative long range Imaginary vector potential. These potentials produce

the ...

Page 129

21. scattering produces some lack of systematic behavior of the scalar and vector

potentials determined at each energy. Integrated quantities, such as the rms radii

of these potentials or the volume Integrals of the

systematic. In Fig. 10 we show the real and imaginary

Integrals per nucleon^gor p- Ca (open circles) and n- Ca (opejjQ squares ) . The

real J/A for p- Ca varies linearly with energy for 104TS80 MeV. The least squares

...

21. scattering produces some lack of systematic behavior of the scalar and vector

potentials determined at each energy. Integrated quantities, such as the rms radii

of these potentials or the volume Integrals of the

**central potential**are much moresystematic. In Fig. 10 we show the real and imaginary

**central potential**volume^Integrals per nucleon^gor p- Ca (open circles) and n- Ca (opejjQ squares ) . The

real J/A for p- Ca varies linearly with energy for 104TS80 MeV. The least squares

...

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### Contents

The phenomenological neutron optical potential | 1 |

Implication of microscopic reaction analyses below | 14 |

Nuclear structure approach to the imaginary optical | 26 |

Copyright | |

9 other sections not shown

### Common terms and phrases

1985 American Institute actinides analysis angular distributions average calculations central potential channels charged particle conference topics Copyright 1985 American coupling cyclotron deformation detectors Deuterons effective interaction elastic and inelastic energy dependence energy range energy resolution excitation energy experimental Fermi gas fission flight path Gamow-Teller higher energies imaginary potential inelastic scattering Institute of Physics intermediate isospin isovector Laboratory Lett level density low energy magnet matrix elements measurements microscopic neutron and proton neutron beam neutron energy neutron scattering Nucl nuclear structure nuclei nucleon obtained Ohio University optical model optical potential parameters parity peak phenomenological Phys pions Polarized intensity probe proposed research related proton proton and neutron proton scattering R-matrix ratio reaction related to conference resonance s-process s-wave sensitivity shell shell model shown in Fig solid angle Spectrometers spin strength studies tion total cross section transition densities values volume integrals wave functions width