Gauge and Lorentz covariant quark propagator in an arbitrary gluon field
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The quark propagator in the presence of an arbitrary gluon field is calculated gauge and Lorentz covariantly order by order in terms of powers of the gluon field and its derivatives. The result is independent of the path connecting the ends of the propagator, and the leading order result coincides with the exact propagator in the trivial case of a vanishing gluon field.
KeywordsTrivial Case Quark Propagator Order Result Lead Order Result Gluon Field
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