Neutron-Proton Bremsstrahlung; with explicit correction terms at 225 MeV

Neutron-proton bremsstrahlung ($np\gamma$) with explicit correction terms including, higher partial waves, higher rescattering effects, longer-range integrations, out-of-plane contributions, neutron and proton relativistic spin effects, charge form- factor contributions, and meson-exchange effects included to order K in the photon momentum [1] are calculated with the Argonne nucleon-nucleon potential to compare to experimental results at 225 MeV obtained by Y. Safkan et al. [2] at LANCE. The data include various coplanar nucleon exit angles. These are the first experimental ($np\gamma$) data to explicitly measure the photon angulardistribution. Finite-size detector effects are determined with the out-of-plane calculations. \begin{thebibliography}{2} \bibitem{\bf} V. R. Brown and J. Franklin, Phys. Rev. C {\bf 8}, 1706 (1973). \bibitem{\sa} Y. Safkan et al.,Phys. Rev. C{\bf 75}, 031001 (2007). \end{thebibliography}