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D =7/D =6 heterotic supergravity with gauged R-symmetry

Abstract

We construct a family of chiral anomaly-free supergravity theories in D =6 starting from D = 7 supergravity with a gauged noncompact R-symmetry, employing a Hořava-Witten bulk-plus-boundary construction. The gauged noncompact R-symmetry yields a positive (de Sitter sign) D = 6 scalar field potential. Classical anomaly inflow which is needed to cancel boundary-field loop anomalies requires careful consideration of the gravitational, gauge, mixed and local supersymmetry anomalies. Coupling of boundary hypermultiplets requires care with the Sp(1) gauge connection required to obtain quaternionic Kähler target manifolds in D = 6. This class of gauged R-symmetry models may be of use as starting points for further compactifications to D = 4 that take advantage of the positive scalar potential, such as those proposed in the scenario of supersymmetry in large extra dimensions.

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Correspondence to K. S. Stelle.

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ArXiv ePrint:1008.0726

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Pugh, T.G., Sezgin, E. & Stelle, K.S. D =7/D =6 heterotic supergravity with gauged R-symmetry. J. High Energ. Phys. 2011, 115 (2011). https://doi.org/10.1007/JHEP02(2011)115

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Keywords

  • p-branes
  • Supergravity Models
  • Anomalies in Field and String Theories
  • dS vacua in string theory