Fivebrane Gravitational Anomalies
Katrin Becker, Melanie Becker
TL;DR
This paper investigates the gravitational anomaly cancellation mechanisms for M-theory fivebranes and their relation to type IIA fivebranes, focusing on modifications of Chern-Simons terms and anomaly inflow in different dimensions.
Contribution
It extends the anomaly cancellation mechanism from M-theory fivebranes to type IIA fivebranes via compactification and analyzes their relation.
Findings
Modified Chern-Simons term cancels anomalies in M-theory fivebranes.
Compactification relates M-theory and type IIA anomaly mechanisms.
Provides a unified view of fivebrane anomaly cancellation across theories.
Abstract
Freed, Harvey, Minasian and Moore have proposed a mechanism to cancel the gravitational anomaly of the M-theory fivebrane coming from diffeomorphisms acting on the normal bundle. This procedure is based on a modification of the conventional M-theory Chern-Simons term. We compactify this space-time interaction to the ten-dimensional type IIA theory. We then analyze the relation to the anomaly cancellation mechanism for the type IIA fivebrane proposed by Witten.
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