NSUSY fits
Jos\'e R. Espinosa, Christophe Grojean, Ver\'onica Sanz, Michael, Trott

TL;DR
This paper performs a comprehensive global fit of Higgs data within Natural SUSY, analyzing the interplay of Higgs signals, precision measurements, and collider bounds to constrain light stop scenarios and explore indirect exclusion prospects.
Contribution
It introduces a predictive relation between Wilson coefficients c_g and c_γ in Natural SUSY and assesses their implications for light stop parameter space using combined experimental constraints.
Findings
Allowed parameter space is limited by multiple constraints.
Reproducing the observed Higgs mass with sub-TeV stops is challenging.
Global Higgs fits can exclude difficult-to-probe light stop regions.
Abstract
We perform a global fit to Higgs signal-strength data in the context of light stops in Natural SUSY. In this case, the Wilson coefficients of the higher dimensional operators mediating g g -> h and h -> \gamma \gamma, given by c_g, c_\gamma, are related by c_g = 3 (1 + 3 \alpha_s/(2 \pi)) c_\gamma/8. We examine this predictive scenario in detail, combining Higgs signal-strength constraints with recent precision measurements of m_W, b-> s \gamma constraints and direct collider bounds on weak scale SUSY, finding regions of parameter space that are consistent with all of these constraints. However it is challenging for the allowed parameter space to reproduce the observed Higgs mass value with sub-TeV stops. We discuss some of the direct stop discovery prospects and show how global Higgs fits can be used to exclude light stop parameter space difficult to probe by direct collider searches.…
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