Building MSSM Flux Vacua
Abstract
We construct Script N = 1 and Script N = 0 chiral fourdimensional vacua of flux compactification in typeIIB string theory. These vacua have the common features that they are free of tadpole instabilities (both NSNS and RR) even for models with Script N = 0 supersymmetry. In addition, the dilaton/complex structure moduli are stabilised and the supergravity background metric is warped. We present an example in which the low energy spectrum contains the MSSM spectrum with three generations of chiral matter. In the Script N = 0 models, the background fluxes which stabilise the moduli also induce soft supersymmetry breaking terms in the gauge and chiral sectors of the theory, while satisfying the equation of motion. We also discuss some phenomenological features of these three generation MSSM flux vacua. Our techniques apply to other closed string backgrounds as well and, in fact, also allow to find new Script N = 1 Dbrane models which were believed not to exist. Finally, we discuss in detail the consistency conditions of these flux compactifications. Cancellation of Ktheory charges puts additional constraints on the consistency of the models, which render some chiral Dbrane models in the literature inconsistent.
 Publication:

Journal of High Energy Physics
 Pub Date:
 November 2004
 DOI:
 10.1088/11266708/2004/11/041
 arXiv:
 arXiv:hepth/0409132
 Bibcode:
 2004JHEP...11..041M
 Keywords:

 Dbranes Superstring Vacua Supersymmetric Standard Model Compactification and String Models;
 High Energy Physics  Phenomenology;
 High Energy Physics  Theory
 EPrint:
 33 pages, 1 figure. Minor corrections