Type: Article
Publication Date: 2013-05-07
Citations: 102
DOI: https://doi.org/10.1103/physrevd.87.092003
T2K has performed the first measurement of ${\ensuremath{\nu}}_{\ensuremath{\mu}}$ inclusive charged current interactions on carbon at neutrino energies of $\ensuremath{\sim}1\text{ }\text{ }\mathrm{GeV}$ where the measurement is reported as a flux-averaged double differential cross section in muon momentum and angle. The flux is predicted by the beam Monte Carlo and external data, including the results from the NA61/SHINE experiment. The data used for this measurement were taken in 2010 and 2011, with a total of $10.8\ifmmode\times\else\texttimes\fi{}{10}^{19}$ protons-on-target. The analysis is performed on 4485 inclusive charged current interaction candidates selected in the most upstream fine-grained scintillator detector of the near detector. The flux-averaged total cross section is $⟨{\ensuremath{\sigma}}_{\mathrm{CC}}{⟩}_{\ensuremath{\phi}}=(6.91\ifmmode\pm\else\textpm\fi{}0.13(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.84(\mathrm{syst}))\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}39}\text{ }\text{ }\frac{{\mathrm{cm}}^{2}}{\mathrm{nucleon}}$ for a mean neutrino energy of 0.85 GeV.