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

descriptionPublicationkeyboard_double_arrow_right Article , Preprint 01 Jan 2010Embargo end date: 01 Jan 2010 Spain Publisher:American Physical Society (APS)Funded by:EC | HADRONPHYSICS2

Authors: Hernández Gajate, Eliecer; Nieves Pamplona, Juan Miguel; Valverde Hermosilla, Manuel; Vicente Vacas, Manuel José;

doi: 10.48550/arxiv.1001.4416

arXiv: 1001.4416

handle: 10550/39325 , 10261/24320

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

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Abstract

The N 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 sigma which might have an impact in background calculations for T2K and MiniBooNE low energy neutrino oscillation precision experiments.

M.Valverde acknowledges the Japanese Society for the Promotion of Science (JSPS) for a Postdoctoral Fellow- ship. Research supported by DGI contracts FIS2008- 01143, FIS2006-03438, FPA2007-65748 and CSD2007- 00042, JCyL contracts SA016A07 and GR12, Generalitat Valenciana contract PROMETEO/2009/0090 and by EU HadronPhysics2 contract 227431.

Peer reviewed

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Spain

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Keywords

High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Física, FOS: Physical sciences

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