"A_m800_w5p0__H_m550_w5p0_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, $m_A = 800$ GeV, $\Gamma_A/m_A = 5.0$% and H, $m_H = 550$ GeV, $\Gamma_H/m_H = 5.0$% as a function of the coupling modifiers $g_{A t \bar t}$ and $g_{H t \bar t}$.

该数据集提供了以耦合修正量$g_{A tar{t}}$与$g_{H tar{t}}$为自变量的观测值，其物理设定为：同时存在质量$m_A=800$ GeV、宽度与质量比$Gamma_A/m_A=5.0\%$的A粒子，与质量$m_H=550$ GeV、宽度与质量比$Gamma_H/m_H=5.0\%$的H粒子；该观测值为相对于**标准模型（Standard Model, SM）**、且对应耦合修正量$g_{A tar{t}} = g_{H tar{t}} = 0$基准情形的两倍负对数似然值。