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

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...

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Bibliographic Details
Published in:Physical review letters 2016-11, Vol.117 (19), p.192501-192501, Article 192501
Main Authors: Abe, K, Andreopoulos, C, Antonova, M, Aoki, S, Ariga, A, Assylbekov, S, Autiero, D, Ban, S, Barbi, M, Barker, G J, Barr, G, Bartet-Friburg, P, Batkiewicz, M, Bay, F, Berardi, V, Berkman, S, Bhadra, S, Blondel, A, Bolognesi, S, Bordoni, S, Boyd, S B, Brailsford, D, Bravar, A, Bronner, C, Buizza Avanzini, M, Calland, R G, Campbell, T, Cao, S, Caravaca Rodríguez, J, Cartwright, S L, Castillo, R, Catanesi, M G, Cervera, A, Cherdack, D, Chikuma, N, Christodoulou, G, Clifton, A, Coleman, J, Collazuol, G, Coplowe, D, Cremonesi, L, Dabrowska, A, De Rosa, G, Dealtry, T, Denner, P F, Dennis, S R, Densham, C, Dewhurst, D, Di Lodovico, F, Di Luise, S, Dolan, S, Drapier, O, Duffy, K E, Dumarchez, J, Dytman, S, Dziewiecki, M, Emery-Schrenk, S, Ereditato, A, Feusels, T, Finch, A J, Fiorentini, G A, Friend, M, Fujii, Y, Fukuda, D, Fukuda, Y, Furmanski, A P, Galymov, V, Garcia, A, Giffin, S G, Giganti, C, Gizzarelli, F, Gonin, M, Grant, N, Hadley, D R, Haegel, L, Haigh, M D, Hamilton, P, Hansen, D, Harada, J, Hara, T, Hartz, M, Hasegawa, T, Hastings, N C, Hayashino, T, Hayato, Y, Helmer, R L, Hierholzer, M, Hillairet, A, Himmel, A, Hiraki, T, Hirota, S, Hogan, M, Holeczek, J, Horikawa, S, Hosomi, F, Huang, K, Ichikawa, A K, Ieki, K, Ikeda, M, Imber, J
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Language:English
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Summary: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.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.117.192501