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Gravitational anomaly cancellation for $M$-theory fivebranes

1998; Volume: 2; Issue: 3 Linguagem: Inglês

10.4310/atmp.1998.v2.n3.a8

1095-0761

Dan Freed, Jeffrey A. Harvey, Ruben Minasian, Gregory Moore,

Pulsars and Gravitational Waves Research

We study gravitational anomalies for fivebranes in M theory.We show that an apparent anomaly in diffeomorphisms acting on the normal bundle is cancelled by a careful treatment of the M theory Chern-Simons coupling in the presence of fivebranes.One interesting aspect of our treatment is the way in which a magnetic object (the fivebrane) is smoothed out through coupling to gravity and the resulting relation between antisymmetric tensor gauge transformations and diffeomorphisms in the presence of a fivebrane.