arXiv:1001.4416·v1·High Energy Physics — Phenomenology
N-Delta(1232) axial form factors from weak pion production
E. Hernandez🇪🇸 · J.Nieves🇪🇸 · M.Valverde🇯🇵 · M.J. Vicente-Vacas🇪🇸
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.
Comments: 4 pages, 1 figure