Measurements of the and -induced coherent charged pion production cross sections on by the T2K experiment
K. Abe (University of Tokyo, Institute for Cosmic Ray Research, Kamioka Observatory, Kamioka, Japan); N. Akhlaq (Queen Mary University of London, School of Physics and Astronomy, London, United Kingdom); R. Akutsu (High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan); A. Ali (TRIUMF, Vancouver, British Columbia, Canada, University of Winnipeg, Department of Physics, Winnipeg, Manitoba, Canada); S. Alonso Monsalve (ETH Zurich, Institute for Particle Physics and Astrophysics, Zurich, Switzerland); et al - Show all 384 authors
We report an updated measurement of the -induced, and the first measurement of the -induced coherent charged pion production cross section on nuclei in the Tokai-to-Kamioka experiment. This is measured in a restricted region of the final-state phase space for which , and , and at a mean (anti)neutrino energy of 0.85 GeV using the T2K near detector. The measured charged current coherent pion production flux-averaged cross section on is . The new measurement of the -induced cross section on is . The results are compatible with both the NEUT 5.4.0 Berger-Sehgal (2009) and GENIE 2.8.0 Rein-Sehgal (2007) model predictions.