Derivative expansion for the effective action of chiral gauge fermions. The abnormal parity component |
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Authors: | LL Salcedo |
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Institution: | (1) Departamento de Física Moderna, Universidad de Granada, 18071 Granada, Spain , ES |
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Abstract: | 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 the 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.
Received: 31 January 2001 / Published online: 12 April 2001 |
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Keywords: | |
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