## Proceedings of the International School of Physics "Enrico Fermi.", Volume 11N. Zanichelli, 1960 - Nuclear physics |

### From inside the book

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Page 3

The creation and annihilation operators of fermion fields may be defined in terms

of dichotomic

or for a single species differentiated by the spin

The creation and annihilation operators of fermion fields may be defined in terms

of dichotomic

**variables**referring to the ... two « species » of electrons separatelyor for a single species differentiated by the spin

**variable**, with exactly the same ...Page 152

At all lattice points benga tween o ' and o " the appropriate field quantities are

now treated as

once more evaluated t give the field propagator ( 125 ) ( C " o " | C ' 0 ' ) = $ exp [ i

] ...

At all lattice points benga tween o ' and o " the appropriate field quantities are

now treated as

**variable**start of integration , and in this way the sum of histories isonce more evaluated t give the field propagator ( 125 ) ( C " o " | C ' 0 ' ) = $ exp [ i

] ...

Page 190

If this

would seem to be high density and small separation of positive and negative

energy states ; that is , greatly reduced difference in mass between nucleons and

...

If this

**variable**is to change at all , then the conditions most favorable to changewould seem to be high density and small separation of positive and negative

energy states ; that is , greatly reduced difference in mass between nucleons and

...

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### Contents

GENERALITĄ | 1 |

PARTE PRIMA Problemi teorici | 9 |

PARTE SECONDA Correlazioni angolari polarizzazioni e decadimenti beta | 251 |

3 other sections not shown

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### Common terms and phrases

allowed angle angular assumed calculated charge classical combination completely component connection conservation consider constant contribute correlation corresponding coupling curvature decay defined density dependence derived described determination direction discussed effects electric electromagnetic field electron element elementary emission energy equations example existence experiment experimental expression factor Fermi field final finds formula function geometrodynamics geometry give given gravitational histories initial interaction invariance known leads limit magnetic mass matrix means measured metric modes momentum neutrino neutron nuclei observed obtained operators pairs parity particle phase Phys physics polarization possible present principle problem properties purely quantity quantum quantum mechanics question radiation ratio reason reference relation relativity respect result scattering shown shows solution space spin spinor symmetry Table theory transformation transition universe vector wave weak zero