Journal
PHYSICAL REVIEW D
Volume 92, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.92.035006
Keywords
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Funding
- U.S. Department of Energy, Office of High Energy Physics
- Research Fellowships of the Japan Society for the Promotion of Science for Young Scientists
- Grants-in-Aid for Scientific Research [14J08296] Funding Source: KAKEN
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In the post-LHC8 world-where a Standard Model-like Higgs boson has been established but there is no sign of supersymmetry (SUSY)-the detailed profiling of the Higgs boson properties has emerged as an important road towards discovery of new physics. We present calculations of the expected deviations in Higgs boson couplings kappa(tau,b), kappa(t), kappa(W,Z), kappa(gamma) versus the naturalness measure Delta(EW). Low values of Delta(EW) similar to 10-30 give rise to a natural little hierarchy characterized by light Higgsinos with a mass of mu similar to m(Z) while top squarks are highly mixed but lie in the several TeV range. For such models with radiatively driven naturalness, one expects the Higgs boson h to look very SM-like although deviations can occur. The more promising road to SUSY discovery requires direct Higgsino pair production at a high energy e(+)e(-) collider operating with the center-of-mass energy root s > 2 mu similar to root 2 Delta(EW)m(Z).
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