Measurement of coherent $π^{+}$ production in low energy neutrino-Carbon scattering
hep-ex
/ Authors
K. Abe, C. Andreopoulos, M. Antonova, S. Aoki, A. Ariga, S. Assylbekov, D. Autiero, S. Ban, M. Barbi, G. J. Barker
and 329 more authors
G. Barr, P. Bartet-Friburg, M. Batkiewicz, F. Bay, V. Berardi, S. Berkman, S. Bhadra, A. Blondel, S. Bolognesi, S. Bordoni, S. B. Boyd, D. Brailsford, A. Bravar, C. Bronner, M. Buizza Avanzini, R. G. Calland, T. Campbell, S. Cao, J. Caravaca Rodríguez, S. L. Cartwright, R. Castillo, M. G. Catanesi, A. Cervera, D. Cherdack
/ Abstract
We report the first measurement of the flux-averaged cross section for charged current coherent $π^{+}$ production on carbon for neutrino energies less than 1.5 GeV to a restricted final state phase space region in the T2K near detector, ND280. Comparisons are made with predictions from the Rein-Sehgal coherent production model and the model by Alvarez-Ruso {\it et al.}, the latter representing the first implementation of an instance of the new class of microscopic coherent models in a neutrino interaction Monte Carlo event generator. This results contradicts the null results reported by K2K and SciBooNE in a similar neutrino energy region.