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Electromagnetic decays of the neutral pion investigated in the Dyson-Schwinger formalism
Esther Weil, Gernot Eichmann, Christian S. Fischer +1
We summarize recent work in determining the transition form factor (TFF) of the neutral pion (), by solving the non-perturbative Dyson-Schwinger and Bethe-Salpeter…
Recent developments in bound-state calculations using the Dyson-Schwinger and Bethe-Salpeter equations
Helios Sanchis-Alepuz, Richard Williams
We review in detail modern numerical methods used in the determination and solution of Bethe-Salpeter and Dyson--Schwinger equations. The algorithms and techniques described are ap…
Electromagnetic decays of the neutral pion
Esther Weil, Gernot Eichmann, Christian S. Fischer +1
We complement studies of the neutral pion transition form factor pi^0 --> gamma^(*) gamma^(*) with calculations for the electromagnetic decay widths of the processes pi^0 --> e^+ e…
On the large-Q^2 behavior of the pion transition form factor
Gernot Eichmann, Christian S. Fischer, Esther Weil +1
We study the transition of non-perturbative to perturbative QCD in situations with possible violations of scaling limits. To this end we consider the singly- and doubly-virtual pio…