Speaker
LINGFENG LI
(UC Davis)
Description
In this ongoing work, we study the phenomenology of Higgs pair production with a pair of top quarks ($pp\to t\bar{t}hh$) at the HL-LHC. Several final state/channels are simulated and evaluated with the help of multivariable analysis techniques. It turns out that the multi-$b$ + single lepton channel contributes the most to the signal significance, followed by the same-sign dilepton channel. The constraints on $hhh$ and $t\bar{t}hh$ couplingss are comparable to those gained from Di-Higgs or VBF analyses. We also discuss the potential of $t\bar{t}hh$ as a probe of resonances in new physics such as top partner pair production or heavy Higgs bosons.
Authors
Tao Liu
(The Hong Kong University of Science and Technology)
Ms
Yingying Li
(HKUST)
LINGFENG LI
(UC Davis)
