"A_m450_w2p0__H_m600_w2p0_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, $m_A = 450$ GeV, $\Gamma_A/m_A = 2.0$% and H, $m_H = 600$ GeV, $\Gamma_H/m_H = 2.0$% as a function of the coupling modifiers $g_{A t \bar t}$ and $g_{H t \bar t}$.

本数据集给出了粒子A（质量$m_A=450 ext{GeV}$，$Gamma_A/m_A=2.0\%$）与粒子H（质量$m_H=600 ext{GeV}$，$Gamma_H/m_H=2.0\%$）同时存在的场景，以顶夸克-反顶夸克对的耦合修正因子（coupling modifiers）$g_{A tar{t}}$和$g_{H tar{t}}$为自变量的、相对于标准模型（Standard Model, SM）的两倍负对数似然观测值；当$g_{A tar{t}}=g_{H tar{t}}=0$时，该似然值对应标准模型自身的情形。