Joint Theory Seminar
Speaker: Xiaochuan Lu (Berkeley)
Title: Dirac NMSSM and semi-soft SUSY breaking
Host: Ennio Salvioni
Room: 432
Abstract: The Higgs mass implies fine-tuning for minimal theories of weak-scale supersymmetry (SUSY).
Non-decoupling effects can boost the Higgs mass when new states interact with the Higgs, but new
sources of SUSY breaking that accompany such extensions threaten naturalness. We show that two
singlets with a Dirac mass can increase the Higgs mass while maintaining naturalness in the presence
of large SUSY breaking in the singlet sector. We explore the modi fied Higgs phenomenology of this
scenario, which we call the "Dirac NMSSM."
