Split families unified

Nathaniel Craig, Savas Dimopoulos, Tony Gherghetta

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


We present a simple supersymmetric model of split families consistent with flavor limits that preserves the successful prediction of gauge coupling unification and naturally accounts for the Higgs mass. The model provides an intricate connection between the Standard Model flavor hierarchy, supersymmetric flavor problem, unification and the Higgs mass. In particular unification favors a naturally large Higgs mass from D-term corrections to the quartic couplings in the Higgs potential. The unification scale is lowered with a stable proton that can account for the success of b - τ Yukawa coupling unification. The sparticle spectrum is similar to that of natural supersymmetry, as motivated by the supersymmetric flavor problem and recent LHC bounds, with a heavy scalar particle spectrum except for a moderately light stop required for viable electroweak symmetry breaking. Finally, Higgs production and decays, NLSP decays, and new states associated with extending the Standard Model gauge group above the TeV scale provide signatures for experimental searches at the LHC.

Original languageEnglish (US)
Article number116
JournalJournal of High Energy Physics
Issue number4
StatePublished - 2012
Externally publishedYes


  • Beyond standard model
  • Supersymmetric standard model

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