Scherk-Schwarz supersymmetry breaking for quasi-localized matter fields and supersymmetry flavor violation

Hiroyuki Abe*, Kiwoon Choi, Kwang Sik Jeong, Ken Ichi Okumura

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


We examine the soft supersymmetry breaking parameters induced by the Scherk-Schwarz (SS) boundary condition in 5-dimensional orbifold field theory in which the quark and lepton zero modes are quasi-localized at the orbifold fixed points to generate the hierarchical Yukawa couplings. In such theories, the radion corresponds to a flavon to generate the flavor hierarchy and at the same time plays the role of the messenger of supersymmetry breaking. As a consequence, the resulting soft scalar masses and trilinear A-parameters of matter zero modes at the compactiflcation scale are highly flavor-dependent, thereby can lead to dangerous flavor violations at low energy scales. We analyze in detail the low energy flavor violations in SS-dominated supersymmetry breaking scenario under the assumption that the compactification scale is close to the grand unification scale and the 4-dimensional effective theory below the compactification scale is given by the minimal supersymmetric standard model. Our analysis can be applied to any supersymmetry breaking mechanism giving a sizable F-component of the radion superfield, e.g. the hidden gaugino condensation model.

Original languageEnglish
Pages (from-to)283-316
Number of pages34
JournalJournal of High Energy Physics
Issue number9
Publication statusPublished - 2004 Sept 1
Externally publishedYes


  • Field Theories in Higher Dimensions
  • Supersymmetric Standard Model
  • Supersymmetry Breaking
  • Supersymmetry Phenomenology

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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