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

Yoshiharu Kawamura, Hitoshi Murayama, Masahiro Yamaguchi

Research output: Contribution to journalArticlepeer-review

215 Citations (Scopus)


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 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 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.

Original languageEnglish
Pages (from-to)1337-1352
Number of pages16
JournalPhysical Review D
Issue number3
Publication statusPublished - 1995

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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