2019/12/16 by J. P. B. C. de Melo, de Melo, J. P. B. C., Rômulo M. Moita +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Nuclear Theory (nucl-th) #hep-ph #nucl-th
paper · pdf · doi:10.48550/arxiv.1912.07459
Use PoS style. Light Cone 2019 - QCD on the light cone: from hadrons to heavy ions - LC2019 - 16-20 September 2019 -Ecole Polytechnique, Palaiseau, France
arxiv created 2019/12/16 · arxiv updated 2019/12/17
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.