205 citations · 544 across the 30 of their papers we have counts for
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Chiral properties of the constituent quark model
Wolfgang Lucha, Dmitri Melikhov, Silvano Simula
We show that, in a model based exclusively on constituent-quark degrees of freedom interacting via a potential, the full axial current is conserved if the spectrum of \bar QQ state…
Generalized Instantaneous Bethe-Salpeter Equation and Exact Quark Propagators
Wolfgang Lucha, F. F. Schoberl
A three-dimensional reduction of the homogeneous Bethe-Salpeter equation retaining, in contrast to the Salpeter equation, the exact propagators (crucial for, e.g., a proper incorpo…
Dispersion representations and anomalous singularities of the triangle diagram
Wolfgang Lucha, Dmitri Melikhov, Silvano Simula
We discuss dispersion representations for the triangle diagram , the single dispersion representation in and the double dispersion representation in $p_1^…
Constituent quarks, chiral symmetry, and chiral point of the constituent quark model
Wolfgang Lucha, Dmitri Melikhov, Silvano Simula
We construct the full axial current of the constituent quarks by a summation of the infinite number of diagrams describing constituent-quark soft interactions. By requiring that th…
Quark-hadron duality and hadron properties from correlators of pseudoscalar and axial currents
W. Lucha, D. Melikhov
We study the operator product expansion (OPE) and quark-hadron duality for 2- and 3-point correlators of the axial (A) and pseudoscalar (P) currents of the light quarks. In the chi…
Gravitating semirelativistic N-boson systems
Richard L. Hall, Wolfgang Lucha
Analytic energy bounds for N-boson systems governed by semirelativistic Hamiltonians of the form H=\sum_{i=1}^N(p_i^2 + m^2)^{1/2} - sum_{1=i<j}^N v/r_{ij}, with v>0, are derived b…