Flavor changing processes in supersymmetric models with hybrid gauge- and gravity-mediation

Gudrun Hiller*, Yonit Hochberg, Yosef Nir

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

We consider supersymmetric models where gauge mediation provides the dominant contributions to the soft supersymmetry breaking terms while gravity mediation provides sub-dominant yet non-negligible contributions. We further assume that the gravity-mediated contributions are subject to selection rules that follow from a Froggatt-Nielsen symmetry. This class of models constitutes an example of viable and natural non-minimally flavor violating models. The constraints from K 0- 0 mixing imply that the modifications to the Standard Model predictions for B d- d and B s- s mixing are generically at most at the percent level, but can be of order ten percent for large tan β. The modifications for D 0- 0 mixing are generically at most of order a few percent, but in a special subclass of models they can be of order one. We point out ΔB = 1 processes relevant for flavor violation in hybrid mediation.

Original languageAmerican English
Article number115
JournalJournal of High Energy Physics
Volume2009
Issue number3
DOIs
StatePublished - 2009
Externally publishedYes

Keywords

  • B-physics
  • Rare decays
  • Supersymmetric standard model
  • Supersymmetry breaking

Fingerprint

Dive into the research topics of 'Flavor changing processes in supersymmetric models with hybrid gauge- and gravity-mediation'. Together they form a unique fingerprint.

Cite this