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arXiv · 1912.07459

Pion observables with the Minkowski Space Pion Model

J. P. B. C. de Melo·Rômulo M. Moita·Tobias Frederico
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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.

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J. P. B. C. de Melo, Rômulo M. Moita, Tobias Frederico. 2019-12-16. Pion observables with the Minkowski Space Pion Model. https://arxiv.org/abs/1912.07459

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