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Natural supersymmetry and dynamical flavour with meta-stable vacua.

Abel, S.A. and McGarrie, M. (2014) 'Natural supersymmetry and dynamical flavour with meta-stable vacua.', Journal of high energy physics., 2014 (7). p. 145.

Abstract

We show how gauged flavour breaking and N = 1 supersymmetry breaking can be dynamically aligned to produce natural models. Supersymmetry is broken in a metastable vacuum, while a weakly gauged flavour symmetry is identified with an SU (3) F subgroup of the global symmetry of the SQCD model. We find that alignment can easily occur either through strongly coupled flavour models, with SQCD bound states playing the role of flavons, or entirely weakly coupled and renormalizable models with elementary SU (3) F adjoint flavons. In both cases it is essential that the SU (3) F breaking, and hence all the flavour structure, is driven dynamically by the SUSY breaking. The resulting flavour gauge mediation in conjunction with the usual gauge mediation contribution leads to naturally light third generations squarks, with first and second generations above exclusions.

Item Type:Article
Keywords:Supersymmetry and duality, Supersymmetry breaking.
Full text:(VoR) Version of Record
Available under License - Creative Commons Attribution.
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Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1007/JHEP07(2014)145
Publisher statement:© 2014 The Authors. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
Date accepted:No date available
Date deposited:17 December 2014
Date of first online publication:July 2014
Date first made open access:No date available

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