Measurement of Coherent π+ Production in Low Energy Neutrino-Carbon Scattering

K. Abe, C. Andreopoulos, M. Antonova, S. Aoki, A. Ariga, S. Assylbekov, D. Autiero, S. Ban, M. Barbi, G. J. Barker, G. Barr, P. Bartet-Friburg, M. Batkiewicz, F. Bay, V. Berardi, S. Berkman, S. Bhadra, A. Blondel, S. Bolognesi, S. BordoniS. 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, N. Chikuma, G. Christodoulou, A. Clifton, J. Coleman, G. Collazuol, D. Coplowe, L. Cremonesi, A. Dabrowska, G. De Rosa, T. Dealtry, P. F. Denner, S. R. Dennis, C. Densham, D. Dewhurst, F. Di Lodovico, S. Di Luise, S. Dolan, O. Drapier, K. E. Duffy, J. Dumarchez, S. Dytman, M. Dziewiecki, S. Emery-Schrenk, A. Ereditato, T. Feusels, A. J. Finch, G. A. Fiorentini, M. Friend, Y. Fujii, D. Fukuda, Y. Fukuda, A. P. Furmanski, V. Galymov, A. Garcia, S. G. Giffin, C. Giganti, F. Gizzarelli, M. Gonin, N. Grant, D. R. Hadley, L. Haegel, M. D. Haigh, P. Hamilton, D. Hansen, J. Harada, T. Hara, M. Hartz, T. Hasegawa, N. C. Hastings, T. Hayashino, Y. Hayato, R. L. Helmer, M. Hierholzer, A. Hillairet, A. Himmel, T. Hiraki, S. Hirota, M. Hogan, J. Holeczek, S. Horikawa, F. Hosomi, K. Huang, A. K. Ichikawa, K. Ieki, M. Ikeda, J. Imber

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    18 Citations (Scopus)

    Abstract

    © 2016 American Physical Society. 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, and with a restriction on the final state phase space volume in the T2K near detector, ND280. Comparisons are made with predictions from the Rein-Sehgal coherent production model and the model by Alvarez-Ruso 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. We observe a clear event excess above background, disagreeing with the null results reported by K2K and SciBooNE in a similar neutrino energy region. The measured flux-averaged cross sections are below those predicted by both the Rein-Sehgal and Alvarez-Ruso et al. models.
    Original languageEnglish
    Article number192501
    JournalPhysical Review Letters
    Volume117
    Issue number19
    DOIs
    Publication statusPublished - 4 Nov 2016

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