Chiral Symmetry and Neutrino Pion Production off the Nucleon

Details Chiral Symmetry and Neutrino Pion Production off the Nucleon Chiral Symmetry and Neutrino Pion Production off the Nucleon

2007-10-30

arxiv.org/abs/0710.5587v1

AIPConf.Proc.981:237-239,2008

Physics

High Energy Physics

High Energy Physics - Experiment

To appear in the proceedings of 9th International Workshop On Neutrino Factories, Superbeams and Betabeams (NuFact07) August 6

Scientific paper

10.1063/1.2898945

The neutrino pion production off the nucleon is traditionally described in the literature by means of the weak excitation of the Delta(1232) resonance and its subsequent decay into N pi. Here, we present results from a model that includes also some background terms required by chiral symmetry. We show that the contribution of these terms is sizeable and leads to significant effects in total and partially integrated pion production cross sections at intermediate energies of interest for neutrino oscillation experiments. Finally, we discuss parity-violating contributions to the pion angular differential cross section induced by the interference of these non-resonant terms with the Delta piece.

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