No-scale N=4 supergravity coupled to Yang–Mills: the scalar potential and super-Higgs effect

We derive the scalar potential of the effective theory of type IIB orientifold with 3-form fluxes turned on in presence of non-Abelian brane coordinates. N=4 supergravity predicts a positive semidefinite potential with vanishing cosmological constant in the vacuum of commuting coordinates, with a cl...

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Bibliographic Details
Published in:Physics letters. B 2003-04, Vol.557 (3-4), p.278-282
Main Authors: D'Auria, R., Ferrara, S., Lledó, M.A., Vaulà, S.
Format: Article
Language:English
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Summary:We derive the scalar potential of the effective theory of type IIB orientifold with 3-form fluxes turned on in presence of non-Abelian brane coordinates. N=4 supergravity predicts a positive semidefinite potential with vanishing cosmological constant in the vacuum of commuting coordinates, with a classical moduli space given by three radial moduli and three RR scalars which complete three copies of the coset (U(1,1+n)/U(1)⊗U(1+n)), together with 6n D3-branes coordinates, n being the rank of the gauge group G. Implications for the super-Higgs mechanism are also discussed.
ISSN:0370-2693
1873-2445
DOI:10.1016/S0370-2693(03)00191-6