We develop systematic string techniques to study brane world effective actions for models with magnetized (or equivalently intersecting) D-branes. In particular, we derive the dependence on all NS-NS moduli of the kinetic terms of the chiral matter in a generic non-supersymmetric brane configurations with non-commuting open string fluxes. Near a N=1 supersymmetric point the effective action is consistent with a Fayet-Iliopoulos supersymmetry breaking and the normalization of the scalar kinetic terms is nothing else than the Kahler metric. We also discuss, from a stringy perspective, D and F term breaking mechanisms, and how, in this generic set up, the Kahler metric enters in the physical Yukawa couplings.
|Titolo:||Brane world effective actions for D-branes with fluxes|
|Autori:||BERTOLINI M; M. BILLO'; A. LERDA; J.F. MORALES; R. RUSSO|
|Data di pubblicazione:||2006|
|Digital Object Identifier (DOI):||10.1016/j.nuclphysb.2006.02.044|
|Appare nelle tipologie:||1.1 Journal article|