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arXiv · 1805.12068

Locality and universality in gravitational anomaly cancellation

Roberto Ferreiro Pérez
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Abstract

We obtain necesary and sufficient conditions for gravitational anomaly cancellation. We show that perturbative gravitational anomalies can never be cancelled. In a similar way, in dimensions $n\neq3\operatorname{mod}4$ it is impossible to cancell global anomalies. However, in dimensions $n=3\operatorname{mod}4$ global anomalies can be cancelled. We prove that the unique way to cancel the anomaly is by using a Chern-Simons counterterm. Furthermore, the relationship between the problems of locality and universality is analyzed for gravitational anomalies.

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Roberto Ferreiro Pérez. 2018-05-30. Locality and universality in gravitational anomaly cancellation. https://arxiv.org/abs/1805.12068

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