Fig. 9.

Exclusion limits at 95 % CL in the scenario where ${\tilde{t}}_2^{}$ pair production is assumed, followed by the decay ${\tilde{t}}_2^{}\to Z{\tilde{t}}_1^{}$ (blue) or ${\tilde{t}}_2^{}\to {\tilde{t}}_1^{}h$ (red) and then by ${\tilde{t}}_1^{}\to t{\tilde{\mathit{\chi }}}_1^0$ with a branching ratio of 100 %, as a function of the ${\tilde{t}}_2^{}$ and ${\tilde{\mathit{\chi }}}_1^0$ mass. The ${\tilde{t}}_1^{}$ mass is determined by the relation $m_{{\tilde{t}}_1^{}}-m_{{\tilde{\mathit{\chi }}}_1^0}=180$ GeV. The dashed lines indicate the expected limit and the solid lines indicate the observed limit