Contents

# Contents

## Idea

In particle physics and specifically within effective field theories such as quantum hadrodynamics, the form factor of a given bound state is the ratio of its actual differential cross section? for a given scattering process, by that of an actually pointlike particle

## References

### General

Review:

• Sébastien Descotes-Genon, Alexander Khodjamirian, Javier Virto, Light-Cone Sum Rules for $B \to K \pi$ Form Factors and Applications to Rare Decays (arXiv:1908.02267)
• Sebastien Descotes-Genon, Light-cone sum rules for $B \to K \pi$ form factors and applications to rare decays, talk at bsll2019 (pdf, pdf)