"Figure 9 (upper left,observed, fix others)" of "Search for $\gamma$H production and constraints on the Yukawa couplings of light quarks to the Higgs boson"

Constraints on $\kappa_{u}$, $\kappa_{d}$, $\kappa_{s}$, and $\kappa_{c}$ are shown using the $H\to 4\ell$ channel.In scenario one (black), all couplings except the one being shown are fixed at their SM values. In scenario two (blue), the Yukawa couplings for the three other light quarks are left unconstrained, and BSM contributions are allowed: $\kappa_{ZZ}^2 \le 1$ and $\Gamma^\textrm{BSM}_H \ge 0$. Both observed (solid) and expected (dashed) constraints are presented. The dashed horizontal lines indicate the 68% and 95% CL intervals.

针对$kappa_u$、$kappa_d$、$kappa_s$及$kappa_c$的约束通过$H o4ell$衰变道予以展示。在情景一（黑色曲线）中，除当前展示的耦合常数外，其余耦合常数均固定为其标准模型（Standard Model，SM）取值。在情景二（蓝色曲线）中，其余三种轻夸克的汤川耦合（Yukawa coupling）未施加约束，且允许存在超出标准模型（beyond the Standard Model，BSM）贡献：满足$kappa_{ZZ}^2 leq 1$与$Gamma_H^ ext{BSM} geq 0$。本次展示同时包含观测得到的（实线）与预期的（虚线）约束结果。水平虚线分别对应68%与95%的置信水平（Confidence Level，CL）置信区间。