269 citations · 2.7k across the 191 of their papers we have counts for
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hep-ph2005★ 7 cited
Exact-propagator instantaneous Bethe-Salpeter equation for quark-antiquark bound states
Z. -F. Li, Wolfgang Lucha, F. F. Schoberl
Recently, an instantaneous approximation to the Bethe-Salpeter formalism for the analysis of bound states in quantum field theory has been proposed which retains, in contrast to th…
hep-th2005★ 3 cited
Instantaneous Bethe-Salpeter Equation with Exact Propagators
Wolfgang Lucha, F. F. Schoberl
Consequent application of the instantaneous approximation to both the interaction and all propagators of the bound-state constituents allows us to forge, within the framework of th…