Wave-function profile and SUSY breaking in 5D model with Fayet-Iliopoulos terms

Hiroyuki Abe, Tetsutaro Higaki, Tatsuo Kobayashi

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

We systematically study VEVs of a gauge scalar field Σ in a bulk U(1) vector multiplet and scalar fields in brane/bulk hypermultiplets charged under U(1) in the 5D S1/Z2 orbifold model with generic FI terms. A non-trivial VEV of Σ generates bulk mass terms for U(1) charged fields, and their zero modes have non-trivial profiles. In particular, in the SUSY-breaking case, bosonic and fermionic zero modes have Gaussian profiles. Such non-trivial profiles are useful to explain hierarchical couplings. A toy model for SUSY breaking is studied, and it yields sizable D-term contributions to scalar masses. Because the overall magnitude of D-term contributions is the same everywhere in the bulk and also on both branes, we have to take into account these contributions and other SUSY-breaking terms to obtain a realistic description. We also give profiles and mass eigenvalues of higher modes.

Original languageEnglish
Pages (from-to)809-830
Number of pages22
JournalProgress of Theoretical Physics
Volume109
Issue number5
DOIs
Publication statusPublished - 2003 May
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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