Derivative expansion for the effective action of chiral gauge fermions. The abnormal parity component
نویسنده
چکیده
Explicit exact formulas are presented, for the leading order term in a chiral covariant derivative expansion, for the abnormal parity component of the effective action of twoand 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. PACS numbers: 11.30.Rd 11.15.Tk 11.10.Kk
منابع مشابه
Derivative expansion for the effective action of chiral gauge
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