Angular distribution measurement of ^1^4N(γ, π^+) ^1^4C"g"s at E"γ=320 MeV - Teng, P.K.; Cottman, B.H.; Ghedira, L.; Min, K.; Stoler, P.; Winhold, E.J.; Yamazaki, M.; Yergin, P.F.; Bernstein, A.M.; Schmitt, C.; Nelson, J.A.; Distelbrink, J.H.J.; et al. (Elsevier)
Differential cross sections for ^1^4N(γ, π^+)^1^4C"g"s at a photon energy of 320 MeV, near the peak of the free nucleon delta resonance, have been measured at six angles ranging from 35^o to 120^o. Momentum-space calculations based on the distorted wave impulse approximation yield results which are lower than experiment by a factor of three.
http://dx.doi.org/10.1016/0370-2693(86)90007-9
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