Inserts 1 = Δ_{FP} ∫ Dα δ(F(A^α)) into the gauge-theory path integral to yield a well-defined finite measure; introduces ghost fields for non-Abelian gauge fixing.
Inserts 1 = Δ_{FP} ∫ Dα δ(F(A^α)) into the gauge-theory path integral to yield a well-defined finite measure; introduces ghost fields for non-Abelian gauge fixing.