Publicación 2017: Measurement of the antineutrino to neutrino charged-current interaction cross section ratio in MINERvA

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

Autores: C. J. Solano Salinas y colaboración MINERvA (del FERMILAB de EEUU)

Physical Review D
Vol 95 (2017), 072009
Published by American Physical Society
doi: 10.1103/PhysRevD.95.072009

Abstract: We present measurements of the neutrino and antineutrino total charged-current cross sections on carbon and their ratio using the MINERvA scintillator-tracker. The measurements span the energy rangev2–22 GeVand were performed using forward and reversed horn focusing modes of the Fermilab low-energy NuMI beam to obtain large neutrino and antineutrino samples. The flux is obtained using a subsample of charged-current events at low hadronic energy transfer along with precise higher energy external neutrino cross section data overlapping with our energy range between 12–22GeV.We also report on the antineutrino-neutrino cross section ratio, RCC, which does not rely on external normalization information. Our ratio measurement, obtained within the same experiment using the same technique, benefits from the cancellation of common sample systematic uncertainties and reaches a precision of ∼5% at low energy. Our results for the antineutrino-nucleus scattering cross section and for RCC are the most precise to date in the energy range Eν < 6 GeV.

PhysRevD.95.072009.2017.pdf