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

(The T2K Collaboration)

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18 Scopus citations

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, 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 (US)
Article number192501
JournalPhysical review letters
Volume117
Issue number19
DOIs
StatePublished - Nov 4 2016

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