"A_m400_w2p0__H_m550_w21p0_2dnll" of "Search for heavy pseudoscalar and scalar bosons decaying to a top quark pair in proton-proton collisions at $\sqrt{s}$ = 13 TeV"

Observed values of twice the negative log-likelihood with respect to the SM (corresponding to $g_{A t \bar t} = g_{H t \bar t} = 0$) for the simultaneous presence of A, $m_A = 400$ GeV, $\Gamma_A/m_A = 2.0$% and H, $m_H = 550$ GeV, $\Gamma_H/m_H = 21.0$% as a function of the coupling modifiers $g_{A t \bar t}$ and $g_{H t \bar t}$.

本数据集包含的观测值为：以顶夸克耦合修正参数$g_{A tar{t}}$和$g_{H tar{t}}$为自变量的、相对于标准模型（Standard Model，SM）的负两倍对数似然值；该似然值对应于A粒子（质量$m_A=400$ GeV，衰变宽度与质量之比$Gamma_A/m_A=2.0\%$）与H粒子（质量$m_H=550$ GeV，衰变宽度与质量之比$Gamma_H/m_H=21.0\%$）同时存在的场景，且当$g_{A tar{t}} = g_{H tar{t}} = 0$时，该似然值对应标准模型的基准情形。