Physical Review Letters
The first direct measurement of electron neutrino quasielastic and quasielasticlike scattering on hydrocarbon in the few-GeV region of incident neutrino energy has been carried out using the MINERvA detector in the NuMI beam at Fermilab. The flux-integrated differential cross sections in the electron production angle, electron energy, and Q(2) are presented. The ratio of the quasielastic, flux-integrated differential cross section in Q(2) for v(e) with that of similarly selected v(mu)-induced events from the same exposure is used to probe assumptions that underpin conventional treatments of charged-current v(e) interactions used by long-baseline neutrino oscillation experiments. The data are found to be consistent with lepton universality and are well described by the predictions of the neutrino event generator GENIE.
Wolcott, J., Aliaga, L., Altinok, O., Bellantoni, L., Bercellie, A., Betancourt, M., ... & Carneiro, M. F. (2016). Measurement of Electron Neutrino Quasielastic and Quasielasticlike Scattering on Hydrocarbon at⟨ E ν⟩= 3.6 GeV. Physical review letters, 116(8), 081802.