Low-energy effective Lagrangian in unified theories with nonuniversal supersymmetry-breaking terms

Journal Article · Wed Feb 01 04:00:00 EST 1995 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.51.1337· OSTI ID:6565045

Kawamura, Y ^[1]; Murayama, H ^[2]; Yamaguchi, M ^[3]

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1. Department of Physics, Shinshu University, Matsumoto, 390 (Japan)
2. Theoretical Physics Group, Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720 (United States) Department of Physics, Tohoku University, Sendai, 980-77 (Japan)
3. 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), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 51:3; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

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