Publicación:
Measurement of the antineutrino to neutrino charged-current interaction cross section ratio in MINERvA
Measurement of the antineutrino to neutrino charged-current interaction cross section ratio in MINERvA
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Fecha
2017
Autores
Ren L.
Aliaga L.
Altinok O.
Bellantoni L.
Bercellie A.
Betancourt M.
Bodek A.
Bravar A.
Budd H.
Cai T.
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American Physical Society
American Physical Society
American Physical Society
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Abstracto
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 range
2–22 GeV and 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 12–22 GeV.We also report onthe 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 antineutrinonucleus scattering cross section and for RCC are the most precise to date in the energy range Eν < 6 GeV.
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Palabras clave
Charged-current cross sections,
Antineutrino-neutrino cross section ratio (RCC),
MINERvA experiment