Anomalies and gravity
High Energy Physics - Theory
2010-12-13 v1
Abstract
Anomalies in Yang-Mills type gauge theories of gravity are reviewed. Particular attention is paid to the relation between the Dirac spin, the axial current j_5 and the non-covariant gauge spin C. Using diagrammatic techniques, we show that only generalizations of the U(1)- Pontrjagin four--form F^ F= dC arise in the chiral anomaly, even when coupled to gravity. Implications for Ashtekar's canonical approach to quantum gravity are discussed.
Keywords
Cite
@article{arxiv.hep-th/0605159,
title = {Anomalies and gravity},
author = {Eckehard W. Mielke},
journal= {arXiv preprint arXiv:hep-th/0605159},
year = {2010}
}
Comments
11 pages