A rederivation of the conformal anomaly for spin-1/2
High Energy Physics - Theory
2018-05-02 v1
Abstract
We rederive the conformal anomaly for spin-1/2 fermions by a genuine Feynman graph calculation, which has not been available so far. Although our calculation merely confirms a result that has been known for a long time, the derivation is new, and thus furnishes a method to investigate more complicated cases (in particular concerning the significance of the quantum trace of the stress tensor in non-conformal theories) where there remain several outstanding and unresolved issues.
Keywords
Cite
@article{arxiv.1801.01728,
title = {A rederivation of the conformal anomaly for spin-1/2},
author = {Hadi Godazgar and Hermann Nicolai},
journal= {arXiv preprint arXiv:1801.01728},
year = {2018}
}
Comments
23 pages + appendices