6533b85cfe1ef96bd12bc88b

RESEARCH PRODUCT

N−Δ(1232)axial form factors from weak pion production

E. HernándezJuan NievesM. ValverdeM. J. Vicente Vacas

subject

PhysicsNuclear and High Energy PhysicsParticle physicsMesonPhysics::Instrumentation and Detectors010308 nuclear & particles physicsNuclear Theory7. Clean energy01 natural sciencesDelta baryonNuclear physicsMiniBooNEPion0103 physical sciencesHigh Energy Physics::ExperimentProduction (computer science)Neutrino010306 general physicsNeutrino oscillationLepton

description

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

https://doi.org/10.1103/physrevd.81.085046