Sparticle and Higgs boson masses from the landscape: dynamical versus spontaneous supersymmetry breaking

Abstract

Perturbative supersymmetry breaking on the landscape of string vacua is expected to favor large soft terms as a power-law or log distribution, but tempered by an anthropic veto of inappropriate vacua or vacua leading to too large a value for the derived weak scale -- a violation of the atomic principle. Indeed, scans of such vacua yield a statistical prediction for light Higgs boson mass m_h~ 125 GeV with sparticles (save possibly light higgsinos) typically beyond LHC reach. In contrast, models of dynamical SUSY breaking (DSB) -- with a hidden sector gauge coupling g^2 scanned uniformly -- lead to gaugino condensation and a uniform distribution of soft parameters on a log scale. Then soft terms are expected to be distributed as $m_{\mathrm{soft}}^{-1}$ favoring small values. A scan of DSB soft terms generally leads to $m_h\ll 125$ GeV and sparticle masses usually below LHC limits. Thus, the DSB landscape scenario seems excluded from LHC search results. An alternative is that the exponential suppression of the weak scale is set anthropically on the landscape via the atomic principle.

14 pages, 11 .png figures

References in corpus (8)

• Flux Compactification
• Dynamical SUSY Breaking in Meta-Stable Vacua
• Discrete R symmetries for the MSSM and its singlet extensions
• Revisiting the SUSY mu problem and its solutions in the LHC era
• A landscape solution to the SUSY flavor and CP problems
• Moduli Stabilisation and the Statistics of SUSY Breaking in the Landscape
• Landscape Higgs and sparticle mass predictions from a logarithmic soft term distribution
• Distribution of supersymmetry mu parameter and Peccei-Quinn scale f_a from the landscape

Cited by in corpus (1)

• Radiative natural supersymmetry emergent from the string landscape