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

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Page 219

Two methods have been devised to do this . One is to record the continuum

spectrum in coincidence with an array of many

between the number of gamma - rays emitted and the initial angular momentum

of the ...

Two methods have been devised to do this . One is to record the continuum

spectrum in coincidence with an array of many

**detectors**. Since a relationshipbetween the number of gamma - rays emitted and the initial angular momentum

of the ...

Page 220

The continuum spcctrum is observed in coincidence with the Ge

of three Nal

from the target . The neutrons require ~ 20 ns to reach the Nal

The continuum spcctrum is observed in coincidence with the Ge

**detector**in eachof three Nal

**detectors**at 0° , 45° and 90° relative to the beam direction and 60 cmfrom the target . The neutrons require ~ 20 ns to reach the Nal

**detectors**...Page 221

However , with the Ge

resembles the usual beam - y correlation , that is a 0° / 90° ratio of ~ 1 . 4 for

stretched quadrupole transitions and ~ 0 . 7 for stretched dipoles . Thus it is

possible in a ...

However , with the Ge

**detector**at 225° this correlation for the Nal**detectors**resembles the usual beam - y correlation , that is a 0° / 90° ratio of ~ 1 . 4 for

stretched quadrupole transitions and ~ 0 . 7 for stretched dipoles . Thus it is

possible in a ...

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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 |

Copyright | |

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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