## Proceedings of the International School of Physics "Enrico Fermi.", Volume 23N. Zanichelli, 1963 - Nuclear physics |

### From inside the book

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Page 99

... into the centre-of-mass co-ordinate R and the internal co-ordinates \i = xi — R.

The coupling with the y-ray can be written (1) 8H = ~ J 0 + r2i)xia , where a is the

unit polarization vector of the y-ray and rii is the third component of

... into the centre-of-mass co-ordinate R and the internal co-ordinates \i = xi — R.

The coupling with the y-ray can be written (1) 8H = ~ J 0 + r2i)xia , where a is the

unit polarization vector of the y-ray and rii is the third component of

**isobaric spin**.Page 100

ponent of

Consequently, SH can be rewritten as $H = CZeR a + C^x.ixi-a, (1.2) where the ...

ponent of

**isobaric spin**. We restrict ourselves here to light nuclei where**isobaric****spin**is a good quantum number, and assume Z=A/2. Now (1.1) ~ 2*<a= Ra . A <Consequently, SH can be rewritten as $H = CZeR a + C^x.ixi-a, (1.2) where the ...

Page 102

We shall talk of this as a T = l vibration where T is the

operator t„ produces only such a state when acting on a T = 0 closed shell. The

particle-hole reaction will turn out to be repulsive in 2'= 0 states, as is obvious

from the ...

We shall talk of this as a T = l vibration where T is the

**isobaric spin**, since theoperator t„ produces only such a state when acting on a T = 0 closed shell. The

particle-hole reaction will turn out to be repulsive in 2'= 0 states, as is obvious

from the ...

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### Contents

Lectures | 1 |

G E Brown Collective motion and the application of manybody | 99 |

T Ep icson The compound nucleus and the random phase approximation | 142 |

Copyright | |

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### Common terms and phrases

amplitude approximation assume calculated closed shells coefficients commutation compound configuration consider corresponding coupling cross-section define deformed describe determined diagonal dipole dipole strength discuss eigenfunctions eigenstate eigenvalues electron equation excitation energy expectation value experimental factor force gives Green's function ground Hamiltonian harmonic oscillator Hartree-Fock hermitian adjoint hole hyperfine-structure intrinsic irreducible representation isobaric spin isospin isotope shift large number lecture levels linear magnetic matrix elements Ml transitions Mottelson multipole neutron nuclear charge distribution nucleon nucleus number of particles obtained one-particle operator operator F optical potential orbitals orthogonal pair parameters particle-hole interaction perturbation theory Phys physical problem proton quadrupole qualitative quantum number quasi-particle random relation residual interaction resonant rotation rotation group scattering self-consistent shell-model shown single-particle solution spectrum spherical symmetry time-dependent tion total angular momentum two-body two-particle unperturbed variation vector vibrations wave function wave-functions width y-ray zero