Measurements of neutrino charged current scattering in K2K Fine-Grained Detector

In the KEK to Kamioka long baseline neutrino oscillation experiment (K2K), the neutrino energy spectrum at production is measured with near-site detector system. The neutrino energy spectrum is measured using charged current quasi-elastic scattering. The near detectors also provide measurements of neutrino-nucleus interaction, which is necessary input for the neutrino oscillation study. In this article, measurements of charged current scattering with a fine grained detector system, which is one of K2K near-site detectors, are presented