PoS - Proceedings of Science
Volume 374 - Light Cone 2019 - QCD on the light cone: from hadrons to heavy ions (LC2019) - Contributed
Pion observables with the Minkowski Space Pion Model
J.P. de Melo,* R. Moita, T. Frederico
*corresponding author
Full text: pdf
Pre-published on: May 06, 2020
Published on: May 26, 2020
Abstract

The pion structure in Minkowski space is described in terms of an analytic model of the Bethe-Salpeter amplitude combined with Euclidean Lattice QCD results for the running quark mass. In the present work, a pion model previously proposed, which allows for a Nakanishi integral representation, is studied in order to verify the sensitivity of the pion electromagnetic form factor to small variations of the quark self-energy. In addition, we extend the previous work, providing the Nakanishi integral representation for the invariants associated with a decomposition of the pion Bethe-Salpeter amplitude.
DOI: https://doi.org/10.22323/1.374.0037
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