Quark mass functions and pion structure in the Covariant Spectator Theory
E. P. Biernat, F. Gross, M. T. Pe\~na, A. Stadler, S. Leit\~ao
TL;DR
This paper employs the Covariant Spectator Theory to dynamically compute the quark mass function in Minkowski space and investigates its impact on the pion electromagnetic form factor, analyzing quark-pole contributions.
Contribution
It introduces a method to calculate the dressed quark mass function within the Covariant Spectator Theory and applies it to pion structure analysis.
Findings
Dynamically calculated quark mass function in Minkowski space.
Significant effects of the mass function on the pion form factor.
Analysis of quark-pole contributions to the triangle diagram.
Abstract
The Covariant Spectator Theory is applied to the description of quarks and the pion. The dressed quark mass function is calculated dynamically in Minkowski space and used in the calculation of the pion electromagnetic form factor. The effects of the mass function on the pion form factor and the different quark-pole contributions to the triangle diagram are analyzed.
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