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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…
Electromagnetic transition form factors of baryons in the space-like momentum region
Helios Sanchis-Alepuz, Reinhard Alkofer, Christian S. Fischer
We present results from a calculation of the electromagnetic transition form factors between ground-state octet and decuplet baryons as well as the octet-only to transiti…
Bayesian analysis of quark spectral properties from the Dyson-Schwinger equation
Christian S. Fischer, Jan M. Pawlowski, Alexander Rothkopf +1
We report results on the quark spectral function in the Landau gauge at finite temperature determined from its Dyson-Schwinger equation. Compared to earlier quenched results this s…
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…
Baryons with functional methods
Christian S. Fischer
We summarise recent results on the spectrum of ground-state and excited baryons and their form factors in the framework of functional methods. As an improvement upon similar approa…