The N = 2 vector-tensor multiplet, central charge superspace, and chern-simons couplings

Abstract : We present a new, alternative interpretation of the vector-tensor multiplet as a two-form in central charge superspace. This approach provides a geometric description of the (nontrivial) central charge transformations ab initio and is naturally generalized to include couplings of Chern-Simons forms to the antisymmetric tensor gauge field, giving rise to a N=2 supersymmetric version of the Green-Schwarz anomaly cancellation mechanism.
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Richard Grimm, Maximilian F. Hasler, Carl Herrmann. The N = 2 vector-tensor multiplet, central charge superspace, and chern-simons couplings. International Journal of Modern Physics A, World Scientific Publishing, 1998, 13 (11), pp.1805-1816. ⟨10.1142/S0217751X98000792⟩. ⟨hal-00769900⟩

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