Imposing LHC constraints on the combined Anomaly and $Z^\prime$ Mediation Mechanism of Supersymmetry Breaking

摘要

Combining anomaly with $Z^\prime$ mediation allows us to solve the tachyonicproblem of the former and avoid fine tuning in the latter. This model includesan extra $U(1)^\prime$ gauge symmetry and extra singlet scalar $S$ whichprovides a solution to the `$\mu$ problem' of the Minimal SupersymmetricStandard Model (MSSM). The low-energy particle spectrum is calculated from theUV inputs using the Renormalization Group Equations. The benchmark pointsconsidered in the original model, suggested before the Higgs discovery,predicted a Higgs mass heavier than the generic MSSM value. In 2012, the Higgsparticle was discovered and found to have a mass of 125 GeV. Therefore, we canuse that value and other current LHC data to scan the parameter space andupdate the predictions of the model, in particular the mass of the $Z^\prime$gauge boson.