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Proton Spin in the Instanton Background
Marcus Hutter
The proton form factors are reduced to vacuum correlators of 4 quark fields by assuming independent constituent quarks. The axial singlet quark and gluonic form factors are calcula…
The mass of the eta' in self-dual QCD
Marcus Hutter
The QCD gauge field is modeled as an ensemble of statistically independent selfdual and antiselfdual regions. This model is motivated from instanton physics. The scale anomaly then…
Gauge Invariant Quark Propagator in the Instanton Background
Marcus Hutter
After a general discussion on the choice of gauge, we compare the quark propagator in the background of one instanton in regular and singular gauge with a gauge invariant propagato…
Gluon Mass from Instantons
Marcus Hutter
The gluon propagator is calculated in the instanton background in a form appropriate for extracting the momentum dependent gluon mass. In background--gauge we get for the mass $…
Instantons and Meson Correlators in QCD
Marcus Hutter
Various QCD correlators are calculated in the instanton liquid model in zeromode approximation and expansion. Previous works are extended by including dynamical quark loops…