Gauge covariant solution for the Schwinger-Dyson equation in three-dimensional QED with Chern-Simons term
classification
✦ hep-ph
hep-th
keywords
equationgaugechern-simonsschwinger-dysontermabelianapproximationball-chiu
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An Abelian gauge theory with Chern-Simons term is investigated for a four-component Dirac fermion in 1+2 dimensions. The Ball-Chiu (BC) vertex function is employed to modify the rainbow-ladder approximation for the Schwinger-Dyson (SD) equation. We numerically solve the SD equation and show the gauge dependence for the resulting phase boundary for the parity and the chiral symmetry.
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