Natural Supersymmetry without Light Higgsinos

Abstract

We present a mechanism that allows a large Higgsino mass without large fine-tuning. The Higgs is a pseudo Nambu-Goldstone boson (PNGB) of the global symmetry breaking pattern $SO(5)\to SO(4)$. Because of the PNGB nature of the light Higgs, the $SO(5)$ invariant Higgsino mass does not directly contribute to the Higgs mass. Large couplings in the Higgs sector that spontaneously breaks $SO(5)$ minimize the tuning, and are also motivated by the requirements of generating a sufficiently large Higgs quartic coupling and of maintaining a natural approximate global $SO(5)$ symmetry. When these conditions are imposed, theories of this type predict heavy Higgsinos. This construction differs from composite Higgs models in that no new particles are introduced to form complete $SO(5)$ multiplets involving the top quark---the stop is the only top partner. Compatibility with Higgs coupling measurements requires cancelations among contributions to the Higgs mass squared parameter at the 10% level. An important implication of this construction is that the compressed region of stop and sbottom searches can still be natural.

22 pages, 2 figures; v2: references added

References in corpus (8)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Simply Unnatural Supersymmetry
• Supersymmetry without a Light Higgs Boson
• Maximally Natural Supersymmetry
• Phenomenology of Induced Electroweak Symmetry Breaking
• Phenomenological aspects of supersymmetric composite Higgs models
• Geometrical hierarchies in classical supergravity

Cited by in corpus (6)

• The Reach of the High-Energy LHC for Gluinos and Top Squarks in SUSY Models with Light Higgsinos
• Supergravity gauge theories strike back: There is no crisis for SUSY but a new collider may be required for discovery
• Minimal Non-Abelian Supersymmetric Twin Higgs
• Tagging a mono-top signature in Natural SUSY
• Chasing New Physics in Stacks of Soft Tracks
• SUSY scenarios according to EWSB