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arXiv · hep-th/0403205

Chern-Simons-like action induced radiatively in General Relativity

T. Mariz·J. R. Nascimento·E. Passos·R. F. Ribeiro
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Abstract

The Chern-Simons-like gravitational action is evaluated explicitly in four dimensional space-time by radiative corrections at one-loop level. The calculation is performed in fermionic sector where the Dirac fermions interact with the background gravitational field, including the parity-violating term \barψ\bsγ_5ψ. The investigation takes into account the weak field approximation and dimensional regularization scheme.

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T. Mariz, J. R. Nascimento, E. Passos, R. F. Ribeiro. 2004-03-25. Chern-Simons-like action induced radiatively in General Relativity. https://doi.org/10.1103/physrevd.70.024014

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