Isospin decomposition of the ${\gamma }^{(\ast )}N\to N^{\ast }$ transitions as input for constructing models of neutrino-induced reactions in the nucleon resonance region

Abstract

We present our recent efforts to determine the matrix elements associated with the transition between the nucleon and a nucleon resonance induced by the vector current, which are necessary ingredients for models of neutrino-induced reactions in the resonance region. This is accomplished by making the comprehensive analysis of the data for various meson photo- and electro-production reactions off the nucleon within a sophisticated coupled-channels framework, which is known as the ANL-Osaka dynamical coupled-channels model. We also give a brief introduction to our project for constructing a unified neutrino reaction model conducted at the J-PARC Branch of the KEK Theory Center.

Comments: 6 pages, 3 figures. Contribution to the proceedings of 18th International Workshop on Neutrino Factories and Future Neutrino Facilities Search (NuFact16), Quy Nhon, Vietnam, August 21-27, 2016