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arXiv · 1203.2975

Higher Derivative Extension of 6D Chiral Gauged Supergravity

Eric Bergshoeff·Frederik Coomans·Ergin Sezgin·Antoine Van Proeyen
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Abstract

Six-dimensional (1,0) supersymmetric gauged Einstein-Maxwell supergravity is extended by the inclusion of a supersymmetric Riemann tensor squared invariant. Both the original model as well as the Riemann tensor squared invariant are formulated off-shell and consequently the total action is off-shell invariant without modification of the supersymmetry transformation rules. In this formulation, superconformal techniques, in which the dilaton Weyl multiplet plays a crucial role, are used. It is found that the gauging of the U(1) R-symmetry in the presence of the higher-order derivative terms does not modify the positive exponential in the dilaton potential. Moreover, the supersymmetric Minkowski(4) x S^2 compactification of the original model, without the higher-order derivatives, is remarkably left intact. It is shown that the model also admits non-supersymmetric vacuum solutions that are direct product spaces involving de Sitter spacetimes and negative curvature internal spaces.

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Eric Bergshoeff, Frederik Coomans, Ergin Sezgin, Antoine Van Proeyen. 2012-07-03. Higher Derivative Extension of 6D Chiral Gauged Supergravity. https://doi.org/10.1007/jhep07(2012)011

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