110 citations · 485 across the 58 of their papers we have counts for
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Pion and Kaon Masses and Pion Form Factors from Dynamical Chiral-Symmetry Breaking with Light Constituent Quarks
Michael D. Scadron, Frieder Kleefeld, George Rupp
Light constituent quark masses and the corresponding dynamical quark masses are determined by data, the quark-level linear sigma model, and infrared QCD. This allows to define effe…
Small Strange Quark Content of Protons
Michael D. Scadron, Frieder Kleefeld, George Rupp
The contribution of strange sea quarks to the proton mass and spin, as well as the related pion-nucleon sigma term, are briefly revisited, in the light of new experimental and latt…
On some meaningful inner product for real Klein-Gordon fields with positive semi-definite norm
F. Kleefeld
A simple derivation of a meaningful, manifestly covariant inner product for real Klein-Gordon (KG) fields with positive semi-definite norm is provided which turns out - assuming a…
The nature of , , and
E. van Beveren, D. V. Bugg, F. Kleefeld +1
Masses and widths of the four light scalar mesons , , (980) and (980) may be reproduced in a model where mesons scatter via a loop. A transition potentia…
Pion Chiral Symmetry Breaking in the Quark-Level Linear Sigma Model and Chiral Perturbation Theory
Michael D. Scadron, Frieder Kleefeld, George Rupp
Chiral symmetry breaking (ChSB) is reviewed to some extent within the quark-level-linear-sigma-model (QLLM) theory and standard chiral perturbation theory (ChPT). It is shown, o…