Neutrino-induced meson productions off nucleon at forward limit in nucleon resonance region

Understand

We study forward neutrino-induced meson production off the nucleon in the resonance region.

• Our calculation is based on a dynamical coupled-channels (DCC) model that reasonably describes pi (gamma) N -> pi N, eta N, K Lambda, K Sigma data in the resonance region.
• We apply the PCAC hypothesis to the DCC model to relate the pi N reaction amplitude to the forward neutrino reaction amplitude.
• In this way, we give a prediction for nu N -> pi N, pi pi N, eta N, K Lambda, K Sigma reaction cross sections.