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We present measurements of the neutrino and antineutrino totalcharged-current cross sections on carbon and their ratio using the MINERvAscintillator-tracker. The measurements span the energy range 2-22 GeV and wereperformed using forward and reversed horn focusing modes of the Fermilablow-energy NuMI beam to obtain large neutrino and antineutrino samples. Theflux is obtained using a sub-sample of charged-current events at low hadronicenergy transfer along with precise higher energy external neutrino crosssection data overlapping with our energy range between 12-22 GeV. We alsoreport on the antineutrino-neutrino cross section ratio, Rcc, which does notrely on external normalization information. Our ratio measurement, obtainedwithin the same experiment using the same technique, benefits from thecancellation of common sample systematic uncertainties and reaches a precisionof 5% at low energy. Our results for the antineutrino-nucleus scattering crosssection and for Rcc are the most precise to date in the energy range $E_{\nu}<$ 6GeV.

Measurement of the antineutrino to neutrino charged-current interaction cross section ratio in MINERvA