### Abstract

We develop a general setting for N = 2 rigid supersymmetric field theories with gauged central charge in harmonic superspace. We consider those N = 2 multiplets which have a finite number of off-shell components and exist off shell owing to a non-trivial central charge. This class includes, in particular, the hypermultiplet with central charge and various versions of the vector-tensor multiplet. For such theories we present a manifestly supersymmetric universal action. Chern-Simons couplings to an external N = 2 super Yang-Mills multiplet are given, in harmonic superspace, for both the linear and non-linear vector-tensor multiplets with gauged central charge. We show how to deduce the linear version of the vector-tensor multiplet from six dimensions.

Original language | English |
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Pages (from-to) | 411-450 |

Number of pages | 40 |

Journal | Nuclear Physics B |

Volume | 538 |

Issue number | 1-2 |

DOIs | |

Publication status | Published - 11 Jan 1999 |

Externally published | Yes |

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## Cite this

*Nuclear Physics B*,

*538*(1-2), 411-450. https://doi.org/10.1016/S0550-3213(98)00708-1