N-Delta(1232) axial form factors from weak pion production
arXiv:1001.4416 · doi:10.1103/PhysRevD.81.085046
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.
4 pages, 1 figure