Publicación:
Measurement of Final-State Correlations in Neutrino Muon-Proton Mesonless Production on Hydrocarbon at Eν ©=3 GeV
Measurement of Final-State Correlations in Neutrino Muon-Proton Mesonless Production on Hydrocarbon at Eν ©=3 GeV
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Fecha
2018
Autores
Lu X.-G.
Betancourt M.
Walton T.
Akbar F.
Aliaga L.
Altinok O.
Andrade D.A.
Ascencio M.
Bellantoni L.
Bercellie A.
Título de la revista
Revista ISSN
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Editor
American Physical Society
Proyectos de investigación
Unidades organizativas
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Abstracto
Final-state kinematic imbalances are measured in mesonless production of νμ þ A → μ− þ p þ X in the
MINERvA tracker. Initial- and final-state nuclear effects are probed using the direction of the μ−-p
transverse momentum imbalance and the initial-state momentum of the struck neutron. Differential cross
sections are compared to predictions based on current approaches to medium modeling. These models
underpredict the cross section at intermediate intranuclear momentum transfers that generally exceed the
Fermi momenta. As neutrino interaction models need to correctly incorporate the effect of the nucleus in
order to predict neutrino energy resolution in oscillation experiments, this result points to a region of phase space where additional cross section strength is needed in current models, and demonstrates a new
technique that would be suitable for use in fine-grained liquid argon detectors where the effect of the nucleus may be even larger.
Descripción
Palabras clave
Transverse momenta,
Liquefied gases,
Momentum,
Phase space methods,
Cross-section strength,
Current models,
Differential cross section,
Liquid argon detectors,
Neutrino energy,
Neutrino interactions,
Nuclear effects,
Neutrons