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The Charged-Current Quasi-Elastic (CCQE) interaction, $\nu_{l} + n\rightarrow l^{-} + p$, is the dominant CC process at $E_\nu \sim 1$ GeV andcontributes to the signal in accelerator-based long-baseline neutrinooscillation experiments operating at intermediate neutrino energies. This paperreports a measurement by the T2K experiment of the $\nu_{\mu}$ CCQE crosssection on a carbon target with the off-axis detector based on the observeddistribution of muon momentum ($p_\mu$) and angle with respect to the incidentneutrino beam ($\theta_\mu$). The flux-integrated CCQE cross section wasmeasured to be $(0.83 \pm 0.12) \times 10^{-38}\textrm{ cm}^{2}$ in goodagreement with NEUT MC value of ${0.88 \times 10^{-38}} \textrm{ cm}^{2}$. Theenergy dependence of the CCQE cross section is also reported. The axial mass,$M_A^{QE}$, of the dipole axial form factor was extracted assuming theSmith-Moniz CCQE model with a relativistic Fermi gas nuclear model. Using theabsolute (shape-only) $p_{\mu}cos\theta_\mu$ distribution, the effective$M_A^{QE}$ parameter was measured to be ${1.26^{+0.21}_{-0.18} \textrm{GeV}/c^{2}}$ (${1.43^{+0.28}_{-0.22} \textrm{ GeV}/c^{2}}$).

Measurement of the $\nu_\mu$ CCQE cross section on carbon with the ND280 detector at T2K