Derivative expansion for the effective action of chiral gauge fermions. The abnormal parity component

Details Derivative expansion for the effective action of chiral gauge fermions. The abnormal parity component Derivative expansion for the effective action of chiral gauge fermions. The abnormal parity component

2000-12-19

arxiv.org/abs/hep-th/0012174v2

Eur.Phys.J.C20:161-184,2001

Physics

High Energy Physics

High Energy Physics - Theory

45 pages, REVTEX, no figures. Minor corrections

Scientific paper

10.1007/s100520100641

Explicit exact formulas are presented, for the leading order term in a strict chiral covariant derivative expansion, for the abnormal parity component of the effective action of two- and four-dimensional Dirac fermions in presence of scalar, pseudo-scalar, vector and axial vector background fields. The formulas hold for completely general internal symmetry groups and general configurations. In particular the scalar and pseudo-scalar fields need not be on the chiral circle.

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