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

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Page 236

We may accordingly speak in a general way of « pure Fermi » , « pure Gamow

Teller » ) and « mixed »

transition unambiguously tells us in each case which of these

We may accordingly speak in a general way of « pure Fermi » , « pure Gamow

Teller » ) and « mixed »

**contributions**to the double - emission factor ; the type oftransition unambiguously tells us in each case which of these

**contributions**will ...Page 307

Just as for Ki , decay , the oft - decay matrix - element may be written m . , A ( 71 -

7 ; ) ut ) , where the constant A , represents the

baryon - pair states which lead to the ti - l decay process . Since the energy ...

Just as for Ki , decay , the oft - decay matrix - element may be written m . , A ( 71 -

7 ; ) ut ) , where the constant A , represents the

**contribution**of the intermediatebaryon - pair states which lead to the ti - l decay process . Since the energy ...

Page 358

18 ) which shows that this

contain 8 ( t ) and 8 ( t ) . By partial integration the 8 ( t ) can be reduced to a 8 ( t )

. One has then only to evaluate equal time commutators , which can be evaluated

...

18 ) which shows that this

**contribution**is zero . Now the last two terms . Theycontain 8 ( t ) and 8 ( t ) . By partial integration the 8 ( t ) can be reduced to a 8 ( t )

. One has then only to evaluate equal time commutators , which can be evaluated

...

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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