"Contour 17" of "Search for supersymmetry in final states with missing transverse momentum and charm-tagged jets using 139 fb$^{-1}$ of proton-proton collisions at $\sqrt{s}=$ 13 TeV with the ATLAS detector"

Observed exclusion limit $(-1\sigma)$ at 95% CL for pair production of top squarks decaying to charm quarks and neutralinos when only considering SR-HM1.

仅考虑SR-HM1时，顶超夸克（top squarks）成对产生并衰变至粲夸克（charm quarks）与中性伴随子（neutralinos）的过程，其95%置信度下的-1σ观测排除极限。