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

Abstract : The Charged-Current Quasi-Elastic (CCQE) interaction, $\nu_{l} + n \rightarrow l^{-} + p$, is the dominant CC process at $E_\nu \sim 1$ GeV and contributes to the signal in accelerator-based long-baseline neutrino oscillation experiments operating at intermediate neutrino energies. This paper reports a measurement by the T2K experiment of the $\nu_{\mu}$ CCQE cross section on a carbon target with the off-axis detector based on the observed distribution of muon momentum ($p_\mu$) and angle with respect to the incident neutrino beam ($\theta_\mu$). The flux-integrated CCQE cross section was measured to be $(0.83 \pm 0.12) \times 10^{-38}\textrm{ cm}^{2}$ in good agreement with NEUT MC value of ${0.88 \times 10^{-38}} \textrm{ cm}^{2}$. The energy dependence of the CCQE cross section is also reported. The axial mass, $M_A^{QE}$, of the dipole axial form factor was extracted assuming the Smith-Moniz CCQE model with a relativistic Fermi gas nuclear model. Using the absolute (shape-only) $p_{\mu}cos\theta_\mu$ distribution, the effective $M_A^{QE}$ parameter was measured to be ${1.26^{+0.21}_{-0.18} \textrm{ GeV}/c^{2}}$ (${1.43^{+0.28}_{-0.22} \textrm{ GeV}/c^{2}}$).
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Journal articles
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http://hal.in2p3.fr/in2p3-01091410
Contributor : Dominique Girod <>
Submitted on : Friday, December 5, 2014 - 1:16:59 PM
Last modification on : Wednesday, December 9, 2020 - 11:58:02 AM

### Citation

K. Abe, J. Adam, H. Aihara, T. Akiri, C. Andreopoulos, et al.. Measurement of the $\nu_\mu$ CCQE cross section on carbon with the ND280 detector at T2K. Physical Review D, American Physical Society, 2015, 92, pp.112003. ⟨10.1103/PhysRevD.92.112003⟩. ⟨in2p3-01091410⟩

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