Issue Eur. Phys. J. C Volume 35, Number 2, June 2004 Page(s) 267 - 275 DOI 10.1140/epjc/s2004-01749-9 Published online 05 May 2004

Eur. Phys. J. C 35, 267-275 (2004)
DOI: 10.1140/epjc/s2004-01749-9

Supersymmetry breaking in warped geometry

K. Choi¹, D.Y. Kim¹, I.-W. Kim¹ and T. Kobayashi<sup>2

1</sup>  Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea
²  Department of Physics, Kyoto University, Kyoto 606-8502, Japan

kchoi@hep.kaist.ac.kr
kimdoyoung@hep.kaist.ac.kr
iwkim@hep.kaist.ac.kr
kobayash@gauge.scphys.kyoto-u.ac.jp

(Received: 21 October 2003 / Revised version: 12 January 2004 / / Published online: 5 May 2004)

Abstract
We examine the soft supersymmetry breaking parameters in supersymmetric theories on a slice of AdS₅ which generate the hierarchical Yukawa couplings by dynamically quasi-localizing the bulk matter fields in an extra dimension. Such models can be regarded as the AdS dual of the recently studied 4-dimensional models which contain a supersymmetric CFT to generate the hierarchical Yukawa couplings. In such models, if supersymmetry breaking is mediated by the bulk radion superfield and/or some brane chiral superfields, potentially dangerous flavor-violating soft parameters are suppressed with an appropriate correlation with the Yukawa coupling suppression, thereby avoiding the SUSY flavor problem in a natural manner. We present some models of radion-dominated supersymmetry breaking which yield a highly predictive form of soft parameters in this framework, and discuss the constraints from flavor-changing rare processes. Most of the discussions in this paper can be applied also to models with a flat extra dimension in which the Yukawa hierarchy is generated by quasi-localizing the bulk matter fields in the extra dimension.

© Società Italiana di Fisica, Springer-Verlag 2004

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