First measurement of the νμ charged-current cross section without pions in the final state on a water target

We report the first differential measurement of the charged-current interaction cross section of νμ on water with no pions in the final state. This flux-averaged measurement has been made using the T2K experiment’s off-axis near detector, and is reported in doubly-differential bins of muon momentum and angle. The flux-averaged total cross section in a restricted region of phase space was found to be σ=(0.95±0.13)×10−38cm2 per n.

arXiv:1708.06771 [hep-ex], Phys.Rev. D97 (2018) no.1, 012001. The data release for this paper is here.

• arXiv preprint: https://arxiv.org/abs/1708.06771
• DOI: https://doi.org/10.1103/PhysRevD.97.012001
• Reference: Phys.Rev.D 97 (2018) 1, 012001
• Data release: https://t2k-experiment.org/results/2017-cc0pi-water-xsec/