153 citations · 918 across the 45 of their papers we have counts for
46 papers
Quark mass functions in Minkowski space
Elmar P. Biernat, Franz Gross, M. T. Peña +1
Using the Covariant Spectator Theory (CST), we calculate the dressed quark mass function and wave-function renormalization for the five quark flavors from up/down to bottom in both…
Heavy and heavy-light mesons with arbitrary spin and parity in the Covariant Spectator Theory
Alfred Stadler, Elmar P. Biernat
This work generalizes the one-channel Covariant Spectator Theory (CST) formalism to describe quark-antiquark mesons of arbitrary spin-parity . We also improve the quark-antiqu…
Heavy and heavy-light tensor and axial-tensor mesons in the Covariant Spectator Theory
Elmar P. Biernat, Alfred Stadler
We present the first calculation of tensor and axial-tensor mesons with total spin within the Covariant Spectator Theory. We employ a refined quark-antiquark interaction k…
Simple high-accuracy method for solving bound-state equations with the Cornell potential in momentum space
Alfred Stadler, Elmar P. Biernat, Vasco Valverde
The well-known Cornell quark-antiquark potential in momentum space contains singularities both in its one-gluon-exchange (OGE) and linear confining parts, which prevents a direct u…
Going to the light front with contour deformations
Gernot Eichmann, Eduardo Ferreira, Alfred Stadler
We explore a new method to calculate the valence light-front wave function of a system of two interacting particles, which is based on contour deformations combined with analytic c…
Scattering amplitudes and contour deformations
Gernot Eichmann, Pedro Duarte, M. T. Peña +1
We employ a scalar model to exemplify the use of contour deformations when solving Lorentz-invariant integral equations for scattering amplitudes. In particular, we calculate the o…