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  • 1411 (1).6264v1

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  • PhysRevD.92.112003

    Rights statement: © 2015 American Physical Society

    Final published version, 735 KB, PDF document

    Available under license: CC BY: Creative Commons Attribution 4.0 International License

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Measurement of the νμ CCQE cross section on carbon with the ND280 detector at T2K

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Article number112003
<mark>Journal publication date</mark>11/12/2015
<mark>Journal</mark>Physical Review D
Issue number11
Volume92
Number of pages14
Publication statusPublished
Original languageEnglish

Abstract

The Charged-Current Quasi-Elastic (CCQE) interaction, νl + n → l − + p, is the dominant CC process at Eν ∼ 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 νµ CCQE cross section on a carbon target with the off-axis detector based on the observed distribution of muon momentum (pµ) and angle with respect to the incident neutrino beam (θµ). The flux-integrated CCQE cross section was measured to be hσi = (0.83 ± 0.12) × 10−38 cm2 . The energy dependence of the CCQE cross section is also reported. The axial mass, MQE A , of the dipole axial form factor was extracted assuming the Smith-Moniz CCQE model with a relativistic Fermi gas nuclear model. Using the absolute (shapeonly) pµ-cosθµ distribution, the effective M QE A parameter was measured to be 1.26+0.21 −0.18 GeV/c2 (1.43+0.28 −0.22 GeV/c2 ).

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© 2015 American Physical Society