N-Delta(1232) axial form factors from weak pion production

Abstract

The N-Delta axial form factors are determined from neutrino induced pion production ANL & BNL data by using a state of the art theoretical model, which accounts both for background mechanisms and deuteron effects. We find violations of the off diagonal Goldberger-Treiman relation at the level of 2 sigma which might have an impact in background calculations for T2K and MiniBooNE low energy neutrino oscillation precision experiments.

arXiv comment4 pages, 1 figure

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• Polarization Transfer in Weak Pion Production off the Nucleon
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• Pion production off the nucleon
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