Chern-Simons-like action induced radiatively in General Relativity
High Energy Physics - Theory
2009-11-10 v2 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
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 \bar\psi \bs\gamma_5\psi. The investigation takes into account the weak field approximation and dimensional regularization scheme.
Cite
@article{arxiv.hep-th/0403205,
title = {Chern-Simons-like action induced radiatively in General Relativity},
author = {T. Mariz and J. R. Nascimento and E. Passos and R. F. Ribeiro},
journal= {arXiv preprint arXiv:hep-th/0403205},
year = {2009}
}
Comments
9 pages, 10 figures, minor typos fixed