Natural supersymmetry and dynamical flavour with meta-stable vacua

Abel, S.A.; McGarrie, M.

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.

Citation

Abel, S., & McGarrie, M. (2014). Natural supersymmetry and dynamical flavour with meta-stable vacua. Journal of High Energy Physics, 2014(7), Article 145. https://doi.org/10.1007/jhep07%282014%29145

• Journal Article Type: Article
• Publication Date: Jul 1, 2014
• Deposit Date: Oct 22, 2014
• Publicly Available Date: Dec 17, 2014
• Journal: Journal of High Energy Physics
• Print ISSN: 1126-6708
• Electronic ISSN: 1029-8479
• Publisher: Scuola Internazionale Superiore di Studi Avanzati (SISSA)
• Peer Reviewed: Peer Reviewed
• Volume: 2014
• Issue: 7
• Article Number: 145
• DOI: https://doi.org/10.1007/jhep07%282014%29145
• Keywords: Supersymmetry and duality, Supersymmetry breaking.
• Public URL: https://durham-repository.worktribe.com/output/1443183