The scalar potential of the Minimal Supersymmetric Standard Model (MSSM) is nearly flat along many directions in field space. We provide a catalog of the flat directions of the renormalizable and supersymmetry-preserving part of the scalar potential of the MSSM, using the correspondence between flat directions and gauge-invariant polynomials of chiral superfields. We then study how these flat directions are lifted by non-renormalizable terms in the superpotential, with special attention given to the subtleties associated with the family index structure. Several flat directions are lifted only by supersymmetry-breaking effects and by supersymmetfc terms in the scalar potential of surprisingly high dimensionality.
Nuclear Physics B
- Pub Date:
- February 1996
- High Energy Physics - Phenomenology;
- High Energy Physics - Theory
- 23 pages plain TeX + 1 uuencoded postscript file. References added, version to be published in Nuc. Phys. B