Thursday, February 14, 2013

1302.2918 (Federico Bonetti et al.)

One-loop Chern-Simons terms in five dimensions    [PDF]

Federico Bonetti, Thomas W. Grimm, Stefan Hohenegger
We compute one-loop corrections to five-dimensional gauge and gravitational Chern-Simons terms induced by integrating out charged massive fields. The considered massive fields are spin-1/2 and spin-3/2 fermions, as well as complex two-forms with first order kinetic terms. Consistency with six-dimensional gravitational anomalies of (1,0) and (2,0) theories is shown by interpreting the massive fields as excited Kaluza-Klein modes in a circle compactification. The results are in accordance with the geometric predictions of the M-theory to F-theory duality as well as the comparison with an explicit one-loop computation in heterotic string theory compactified on K3 x S^1.
View original: http://arxiv.org/abs/1302.2918

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