Differential cross sections for the process ${\pi }^{-}p\to \gamma n$ have been measured at Brookhaven National Laboratory’s Alternating Gradient Synchrotron with the Crystal Ball multiphoton spectrometer. Measurements were made at 18 pion momenta from 238 to $748\mathrm{MeV}∕c$, corresponding to $E_{\gamma }$ for the inverse reaction from 285 to $769\mathrm{MeV}$. The data have been used to evaluate the $\gamma n$ multipoles in the vicinity of the $N\left(1440\right)$ resonance. We compare our data and multipoles to previous determinations.

• Received 6 May 2004

DOI:https://doi.org/10.1103/PhysRevC.70.035204