"Table 9" of "Dielectron production at midrapidity at low transverse momentum in peripheral and semi-peripheral Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV"

Differential excess $e^+e^-$ yield in 70--90\% Pb--Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV as a function of $p^{2}_{\rm T,ee}$ for 0.7 $< m_{\rm ee} < 1.1$ GeV/$c^{\rm 2}$. Electrons are measured within $|\eta_{\rm e}| < 0.8$ and $p_{\rm T,e} > 0.2$ GeV/$c$. The quoted upper limits correspond to a 90% confidence level.

本数据集对应核子-核子质心系能量√s_{NN}=5.02 TeV能区下70%–90%中心度铅-铅（Pb-Pb）碰撞，针对双电子不变质量介于0.7 GeV/c²至1.1 GeV/c²之间的事例，给出微分过量正负电子产额随双电子横向动量（transverse momentum）平方p_{T,ee}^2的分布。正负电子的探测接收范围为赝快度（pseudorapidity）|η_e| < 0.8且横向动量p_{T,e} > 0.2 GeV/c。文中所引用的测量上限对应90%置信水平（confidence level）。