New measurement of the π → μνγ decay
Abstract
We have measured the branching ratio of the radiative decay π → μνγ. The energies of the gamma-ray and of the muon were both measured and the Dalitz-plot distribution of the decay was obtained. The data agree well with the theoretical prediction (QED internal bremsstrahlung) down to a γ-ray energy of 1 MeV. The discrepancy reported in a previous experiment is not confirmed.
- Publication:
-
Nuclear Physics B
- Pub Date:
- February 1998
- DOI:
- 10.1016/S0550-3213(97)00734-7
- Bibcode:
- 1998NuPhB.513..555B