Higher derivative extension of 6D chiral gauged supergravity
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 Minkowski4 × S2 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.
KeywordsField Theories in Higher Dimensions Space-Time Symmetries Supergravity Models
- G.W. Gibbons, Aspects of supergravity theories, in Supersymmetry, supergravity and related topics, eds. F. del Aguila, J.A. de Azcárraga and L.E. Ibañez, World Scientific Singapore (1985).Google Scholar