Mono-top signature from stop decay at the HE-LHC

Xu-Xu Yang,Hang Zhou,Tian-Peng Tang,Ning Liu

Table 2. A cut flow analysis of the cross sections (in unit of fb) for the hadronic channel events at the HE-LHC. Note that S/B for this channel is tiny due to the large SM backgrounds and the sensitivity is worse than that of the leptonic channel, as shown in figure 4.

Cut Signal Background $m({\tilde{t}}_{1},\mu )$ [GeV] (1000, 200) Single-top $t\bar{t}$ Z + jets Lepton veto 8.976 3.1 · 105 9.15 · 105 1.01 · 108 Nb ≥ 1 6.863 2.34 · 105 7.65 · 105 2.15 · 107 pT(b1) > 200 [GeV] 3.8 7.9 · 103 4.74 · 104 1.6 · 105 ${{/}\!\!\!\!{E}}_{T}\gt 700$ [GeV] 0.39 25.46 12.41 455 pT(j1) > 650 [GeV] 0.26 21.06 10.98 364 HT3 < 200 [GeV] 0.085 1.35 1.19 156 ${\rm{\Delta }}\phi (j,{{/}\!\!\!\!{\vec{p}}}_{T})\gt 0.6$ 0.045 0.93 1.19 65