• DOI:10.1088/1126-6708/2003/06/045
• Corpus ID: 116252621

N = 4 supergravity lagrangian for type-IIB on T6/ℤ2 orientifold in presence of fluxes and D3-branes

@article{DAuria2003N4,
  title={N = 4 supergravity lagrangian for type-IIB on T6/ℤ2 orientifold in presence of fluxes and D3-branes},
  author={Riccardo D'Auria and Sergio Ferrara and Floriana Gargiulo and M. Trigiante and Silvia Vaula'},
  journal={Journal of High Energy Physics},
  year={2003},
  volume={2003},
  pages={045-045}
}

• R. D'Auria, S. Ferrara, +2 authors S. Vaula'
• Published 6 March 2003
• Physics
• Journal of High Energy Physics

We derive the lagrangian and the transformation laws of N = 4 gauged supergravity coupled to matter multiplets whose σ-model of the scalars is SU(1,1)/U(1)⊗SO(6,6+n)/SO(6)⊗SO(6+n) and which corresponds to the effective lagrangian of the type-IIB string compactified on the T6/2 orientifold with fluxes turned on and in presence of n D3-branes. The gauge group is T12⊗G where G is the gauge group on the brane and T12 is the gauge group on the bulk corresponding to the gauged translations of the R-R scalars coming from the R-R four-form. The N = 4 bulk sector of this theory can be obtained as a truncation of the Scherk-Schwarz spontaneously broken N = 8 supergravity. Consequently the full bulk spectrum satisfies quadratic and quartic mass sum rules, identical to those encountered in Scherk-Schwarz reduction gauging a flat group. This theory gives rise to a no scale supergravity extended with partial super-Higgs mechanism.