Radiative Muon Capture on Hydrogen and the Induced Pseudoscalar Coupling

G. Jonkmans, S. Ahmad, D. S. Armstrong +24

The first measurement of the elementary process ${\mu }^{-}p\to {\nu }_{\mu }n\gamma$ is reported. A photon pair spectrometer was used to measure the partial branching ratio ($2.10 \pm 0.22)…