Partially composite supersymmetry

Abstract

We consider a supersymmetric model that uses partial compositeness to explain the fermion mass hierarchy and predict the sfermion mass spectrum. The Higgs and third-generation matter superfields are elementary, while the first two matter generations are composite. Linear mixing between elementary superfields and supersymmetric operators with large anomalous dimensions is responsible for simultaneously generating the fermion and sfermion mass hierarchies. After supersymmetry is broken by the strong dynamics, partial compositeness causes the first- and second-generation sfermions to be split from the much lighter gauginos and third-generation sfermions. This occurs even though the tree-level soft masses of the elementary fields are subject to large radiative corrections from the composite sector, which we calculate in the gravitational dual theory using the AdS/CFT correspondence. The sfermion mass scale is constrained by the observed 125 GeV Higgs boson, leading to stop masses and gauginos around 10-100 TeV and the first two generation sfermion masses around 100-1000 TeV. This gives rise to a splitlike supersymmetric model that explains the fermion mass hierarchy while simultaneously predicting an inverted sfermion mass spectrum consistent with LHC and flavor constraints. Finally, the lightest supersymmetric particle is a gravitino in the keV to TeV range, which can play the role of dark matter.

84 pages, 30 figures; v2: minor revisions and Appendix D added with analytical estimate of the scalar mass running

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Cited by in corpus (5)

• Fermion localization in braneworld teleparallel f(T,B) gravity
• Non-minimal coupling of fermion to the torsion in the modified teleparallel braneworld
• A Supersymmetric Flavor Clockwork
• Predicting the Sparticle Spectrum from Partially-Composite Supersymmetry
• Light scalar modes from holographic deformations