Article

# Higher Derivative Extension of 6D Chiral Gauged Supergravity

(Impact Factor: 6.11). 03/2012; 2012(7). DOI: 10.1007/JHEP07(2012)011
Source: arXiv

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 Minkowski4 × 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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Available from: Ergin Sezgin, Jul 27, 2015
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• "B • mn is the background two-form potential, the background field E • m has been defined in (2.4) and satisfies ∇ m E • m = 0. The θ r denote a set of coupling constants which single out one of the vector fields and descend from an R-symmetry gauging of the underlying supergravity [21]. Accordingly, their gauge invariance requires an abelian factor within the Yang-Mills gauge group. "
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