Low-energy effective Lagrangian in unified theories with nonuniversal supersymmetry-breaking terms
- Department of Physics, Shinshu University, Matsumoto, 390 (Japan)
- Theoretical Physics Group, Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720 (United States) Department of Physics, Tohoku University, Sendai, 980-77 (Japan)
- Department of Physics, Tohoku University, Sendai, 980-77 (Japan)
Supersymmetric grand unified theories with nonuniversal soft supersymmetry- (SUSY-) breaking terms are studied. By integrating out the superheavy fields at a unification scale, we compute their low-energy effective Lagrangian. We find new contributions to the scalar potential specific to the nonuniversal supersymmetry breaking. A [ital D]-term contribution to the scalar masses is one example. The gauge hierarchy achieved by a fine-tuning in the superpotential would be violated in general due to the nonuniversal SUSY-breaking terms. We show, however, it is preserved for a certain class of the soft terms derived from a [ital hidden] ansatz. We also discuss some phenomenological implications of the nonuniversal supersymmetry breaking, including predictions of the radiative electroweak symmetry-breaking scenario and of no-scale-type models.
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 6565045
- Journal Information:
- Physical Review, D (Particles Fields); (United States), Vol. 51:3; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
Similar Records
Nonuniversal GUT corrections to the soft terms and their implications in supergravity models
Low-energy effective Lagrangian from nonminimal supergravity with unified gauge symmetry
Related Subjects
Pa
GRAND UNIFIED THEORY
LAGRANGIAN FUNCTION
SUPERSYMMETRY
SYMMETRY BREAKING
POTENTIALS
SCALARS
FIELD THEORIES
FUNCTIONS
MATHEMATICAL MODELS
PARTICLE MODELS
SYMMETRY
UNIFIED GAUGE MODELS
UNIFIED-FIELD THEORIES
662210* - Specific Theories & Interaction Models
Particle Systematics- Unified Theories & Models- (1992-)