Charged-current inclusive distributions from K2K near detectors

K2K, a long-baseline neutrino-oscillation experiment between KEK PS and Super-Kamiokande (SK), employs two near-site neutrino detectors: a SK-like water Cherenkov detector and a detector complex of a scintillating fiber tracker and a muon range detector. In this talk I describe data of these front detectors in detail. The distributions of muons, a product of charged-current inclusive interactions of neutrinos via nuclei, νμ + N → μ + X, are shown in a comparison with our standard Monte Carlo simulation results.