Authors:	Djukanovic, Dalibor von Hippel, Georg Koponen, Jonna Meyer, Harvey B. Ottnad, Konstantin Schulz, Tobias Wittig, Hartmut
Title:	Isovector axial form factor of the nucleon from lattice QCD
Online publication date:	3-May-2023
Year of first publication:	2022
Language:	english
Abstract:	The isovector axial form factor of the nucleon plays a key role in interpreting data from long-baseline neutrino oscillation experiments. We perform a lattice-QCD based calculation of this form factor, introducing a new method to directly extract its z expansion from lattice correlators. Our final parametrization of the form factor, which extends up to spacelike virtualities of 0.7 GeV 2 with fully quantified uncertainties, agrees with previous lattice calculations but is significantly less steep than neutrino-deuterium scattering data suggests.
DDC:	530 Physik 530 Physics
Institution:	Johannes Gutenberg-Universität Mainz
Department:	FB 08 Physik, Mathematik u. Informatik Helmholtz Institut Mainz
Place:	Mainz
ROR:	https://ror.org/023b0x485
DOI:	http://doi.org/10.25358/openscience-8892
Version:	Published version
Publication type:	Zeitschriftenaufsatz
Document type specification:	Scientific article
License:	CC BY
Information on rights of use:	https://creativecommons.org/licenses/by/4.0/
Journal:	Physical review D 106
Pages or article number:	074503
Publisher:	American Institute of Physics
Publisher place:	Melville, NY
Issue date:	2022
ISSN:	2470-0029
Publisher DOI:	10.1103/physrevd.106.074503
Appears in collections:	DFG-491381577-H