Chiral Anomaly and CPT invariance in an implicit momentum space regularization framework

Details Chiral Anomaly and CPT invariance in an implicit momentum space regularization framework Chiral Anomaly and CPT invariance in an implicit momentum space regularization framework

2001-02-19

arxiv.org/abs/hep-th/0102108v2

Phys.Rev. D64 (2001) 046013

Physics

High Energy Physics

High Energy Physics - Theory

16 pages, LaTeX, version to appear in PRD

Scientific paper

10.1103/PhysRevD.64.046013

This is the second in a series of two contributions in which we set out to establish a novel momentum space framework to treat field theoretical infinities in perturbative calculations when parity-violating objects occur. Since no analytic continuation on the space-time dimension is effected, this framework can be particularly useful to treat dimension-specific theories. Moreover arbitrary local terms stemming from the underlying infinities of the model can be properly parametrized. We (re)analyse the undeterminacy of the radiatively generated CPT violating Chern-Simons term within an extended version of $QED_4$ and calculate the Adler-Bardeen-Bell-Jackiw triangle anomaly to show that our framework is consistent and general to handle the subtleties involved when a radiative corretion is finite.

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