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9 papers · 1 filter
Baryon Magnetic Moments and Axial Coupling Constants with Relativistic and Exchange Current Effects
K. Dannbom, L. Ya. Glozman, C. Helminen +1
The large relativistic corrections to the constituent quark current operators improve the predictions for the axial couplings of the baryons, but worsen those for their magnetic mo…
Baryon Structure and the Chiral Symmetry of QCD
L. Ya. Glozman
Beyond the spontaneous chiral symmetry breaking scale light and strange baryons should be considered as systems of three constituent quarks with an effective confining interaction…
U(1) Gauge Theory with Villain Action on Spherical Lattices
C. B. Lang, P. Petreczky
We have studied the U(1) gauge field theory with Villain (periodic Gaussian) action on spherelike lattices. The effective size of the systems studied ranges from 6 to 16. We do not…
Four-dimensional pure compact U(1) gauge theory on a spherical lattice
J. Jersak, C. B. Lang, T. Neuhaus
We investigate the confinement-Coulomb phase transition in the four-dimensional (4D) pure compact U(1) gauge theory on spherical lattices. The action contains the Wilson coupling b…
Coulomb-Sturmian separable expansion approach: Three-body Faddeev calculations for Coulomb-like interactions
Z. Papp, W. Plessas
We demonstrate the feasibility and efficiency of the Coulomb-Sturmian separable expansion method for generating accurate solutions of the Faddeev equations. Results obtained with t…
Lattice Regularization of the Chiral Schwinger Model
Christof Gattringer
We analyze the chiral Schwinger model on an infinite lattice using the continuum definition of the fermion determinant and a linear interpolation of the lattice gauge fields. For n…