title: Natural Higgs mass in supersymmetry from nondecoupling effects.
abstract: The Higgs mass implies fine-tuning for minimal theories of weak-scale supersymmetry (SUSY). Nondecoupling effects can boost the Higgs mass when new states interact with the Higgs boson, 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 modified Higgs phenomenology of this scenario, which we call the "Dirac next-to-minimal supersymmetric standard model."
authors.affiliation: Department of Physics, University of California, Berkeley, California 94720, USA and Theoretical Physics Group, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
authors.forename: Xiaochuan
authors.initials: X
authors.lastname: Lu
authors.affiliation: Department of Physics, University of California, Berkeley, California 94720, USA and Theoretical Physics Group, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa 277-8583, Japan.
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Murayama
authors.affiliation: Department of Physics, University of California, Berkeley, California 94720, USA and Theoretical Physics Group, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
authors.forename: Joshua T
authors.initials: JT
authors.lastname: Ruderman
authors.affiliation: Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa 277-8583, Japan and Department of Physics, University of Tokyo, Hongo, Tokyo 113-0033, Japan.
authors.forename: Kohsaku
authors.initials: K
authors.lastname: Tobioka