Abstract
We establish that the unusual two-form gauge transformations needed in the Green-Schwarz anomaly cancellation mechanism fit naturally into an α′-deformed generalized geometry. The algebra of gauge transformations is a consistent deformation of the Courant bracket and features a nontrivial modification of the diffeomorphism group. This extension of generalized geometry emerged from a ‘doubled α′-geometry’, which provides a construction of exactly gauge and T-duality invariant α′ corrections to the effective action.
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ArXiv ePrint: 1407.0708
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Hohm, O., Zwiebach, B. Green-Schwarz mechanism and α′-deformed Courant brackets. J. High Energ. Phys. 2015, 12 (2015). https://doi.org/10.1007/JHEP01(2015)012
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DOI: https://doi.org/10.1007/JHEP01(2015)012