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Improved constraint on the MINERvA medium energy neutrino flux using $\bar{\nu}e^{-} \!\rightarrow \bar{\nu}e^{-}$ data

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arxiv 2209.05540 v1 pith:IQLI6SSM submitted 2022-09-12 hep-ex

classification hep-ex
keywords beamfluxneutrinomeasurementrightarrowdecayelasticenergy
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

Processes with precisely known cross sections, like neutrino electron elastic scattering ($\nu e^{-} \!\rightarrow \nu e^{-}$) and inverse muon decay ($\nu_\mu e^{-} \!\rightarrow \mu^{-} \nu_e$) have been used by MINERvA to constrain the uncertainty on the NuMI neutrino beam flux. This work presents a new measurement of neutrino elastic scattering with electrons using the medium energy \numubar enhanced NuMI beam. A sample of 578 events after background subtraction is used in combination with the previous measurement on the \numu beam and the inverse muon decay measurement to reduce the uncertainty on the \numu flux in the \numu-enhanced beam from 7.6\% to 3.3\% and the \numubar flux in the \numubar-enhanced beam from 7.8\% to 4.7\%.

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Cited by 3 Pith papers

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    Projections show CLOUD and TAO could improve low-energy weak mixing angle measurements to 8-11% via elastic neutrino-electron scattering, with competitive magnetic moment and NSI limits.

  3. Nucleon axial-vector form factor and radius from radiatively-corrected antineutrino scattering data

    hep-ph 2026-01 unverdicted novelty 5.0 of 10

    Radiative corrections applied to MINERvA antineutrino data yield updated values for the nucleon axial-vector form factor G_A and axial radius.

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