Table 2.

Variables used in the training of the neural network ordered by their descending importance

Variable	Definition
$m_{\text{T}}(\text{top})$	Transverse mass of the reconstructed top quark
$p_{\text{T}}^{\ell }$	Transverse momentum of the charged lepton
$\mathrm{\Delta }R(\text{top},\ell )$	Distance in the $\mathit{\eta }$–$\mathit{\varphi }$ plane between the reconstructed top quark and the charged lepton
$p_{\text{T}}^{b\text{-jet}}$	Transverse momentum of the b-tagged jet
$\mathrm{\Delta }\mathit{\varphi }(\text{top},b\text{-jet})$	Difference in azimuth between the reconstructed top quark and the b-tagged jet
$cos\mathit{\theta }(\ell ,b\text{-jet})$	Opening angle of the three-vectors between the charged lepton and the b-tagged jet
$q^{\ell }$	Charge of the lepton
$m_{\text{T}}(W)$	W-boson transverse mass
${\mathit{\eta }}^{\ell }$	Pseudorapidity of the charged lepton
$\mathrm{\Delta }\mathit{\varphi }(\text{top},W)$	Difference in azimuth between the reconstructed top quark and the W boson
$\mathrm{\Delta }R(\text{top},b\text{-jet})$	Distance in the $\mathit{\eta }$–$\mathit{\varphi }$ plane between the reconstructed top quark and the b-tagged jet
${\mathit{\eta }}^{\text{top}}$	Pseudorapidity of the reconstructed top quark
$p_{\text{T}}^W$	Transverse momentum of the W boson