Gauge Invariant Quark Propagator in the Instanton Background
Marcus Hutter
Abstract
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 propagator obtained by inserting a path-ordered gluon exponential. Using a gauge motivated by this analysis, we were able to obtain a finite result for the quark condensate without introducing an infrared cutoff nor invoking some instanton model.
Create a lesson
Related papers
Has Quarkyonic Matter Been Seen in Lattice Simulations?
Kohei Fujikura, Kenji Fukushima, Yoshimasa Hidaka et al.
Analytic parametrisations of the scale dependence of proton parton distributions
David F. Rentería-Estrada
DIS-secting the universe with high-energy neutrinos
Rhorry Gauld, Lorenzo Guerra, Ulrich Haisch et al.
Quantum Fourier integration of decay rates at next-to-leading order
David F. Rentería-Estrada
Light Primordial Black Holes from a First-Order Phase Transition near the End of Inflation: Baryogenesis and Gravitational Wave Signatures
Zihong Cheng, Fa Peng Huang
Investigating bottom quark effects in Higgs boson pair production
David Bürg, Gudrun Heinrich, Philipp Rendler