Speaker
Description
CMS recently presented its first search for Higgs boson pair (HH) production in the WWWW, WWττ, and ττττ decay modes using the full LHC Run2 dataset with 138 fb^{-1} of proton proton collision data recorded by the CMS experiment at a center-of-mass energy of 13 TeV. The analyzed events contain two, three, or four reconstructed leptons, including electrons, muons, and hadronically decaying tau leptons. While the original analysis mostly focuses on constraints on the trilinear Higgs self-coupling and the HH signal component in the ggHH production mode, the presented work focuses on the feasability and prospects of extending the analysis focus to the sub-dominant qqHH production mode. While at a factor of about 5-10 lower cross section than ggHH, the study of qqHH allows to study the so far unmeasured VVHH Higgs boson (H) coupling to Vector bosons (V). The presented preliminary results for a final state with two same charge leptons (electrons or muons) and one hadroniclly decaying tau are quite promising, motivating a more dedicated study of qqHH in future analysis iterations.
