%0 Journal Article
%T Threshold pion electro- and photoproduction off nucleons in covariant chiral perturbation theory
%A Guerrero Navarro, G. H.
%A Vicente Vacas, M. J.
%J Physical Review D
%D 2020
%V 102
%N 11
%I Amer Physical Soc
%@ 2470-0010
%G English
%F GuerreroNavarro+VicenteVacas2020
%O WOS:000603547000001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4670), last updated on Tue, 19 Jan 2021 08:36:24 +0000
%X Pion electro- and photoproduction off the nucleon close to threshold is studied in covariant baryon chiral perturbation theory at O(p(3)) in the extended-on-mass-shell scheme, with the explicit inclusion of the Delta(1232) resonance. The relevant low energy constants are fixed by fitting the available experimental data with the theoretical model. The inclusion of the Delta resonance as an explicit degree of freedom substantially improves the agreement with data and the convergence of the model.
%R 10.1103/PhysRevD.102.113016
%U https://arxiv.org/abs/2008.04244
%U https://doi.org/10.1103/PhysRevD.102.113016
%P 113016-23pp