# nLab Fermi theory of beta decay

Contents

### Context

#### Quantum field theory

functorial quantum field theory

# Contents

## Idea

The Fermi theory of weak $\beta$-decay is an effective quantum field theory approximation – valid to an energy of about 10 TeV – to that part of the standard model of particle physics which is relevant for the decay of hadrons by the weak interaction.

## References

For instance section 2.3 of

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