Abstract
Pion Angular Distributions in Pion Production off Nucleons Induced by Neutrinos and Electrons
Highlights
Pion production constitutes a substantial portion of the total events in neutrino-oscillation experiments
In Ref. [1] we prove that the origin of the parity violating D∗, E ∗ structure functions is in the interference between multipoles in the hadronic current that have different phases
4] and the model that has come to be known as the HNV model
Summary
Joanna Ewa Sobczyk , Eliecer Hernández , Satoshi X. Instituto de Fısica Corpuscular (IFIC), Centro Mixto CSIC-Universidad de Valencia, Institutos de Investigación de Paterna, E-46071 Valencia, Spain. Laboratòrio de Fısica Teòrica e Computacional-LFTC, Universidade Cruzeiro do Sul, São Paulo, SP, 01506-000, Brazil. We present a comparison of two microscopic models for pion production off nucleons by neutrinos and electrons, paying a special attention to the pion angular distribution in the final pion-nucleon center of mass system. Both models predict clear anisotropic distributions in contrast to the ones assumed in some Monte Carlo generators used in neutrino experiment analyses. A comparison with experimental data shows the relevance of having a unitary model to reproduce some of the observables
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