# All-hadronic HHZ production at 3 TeV CLIC

12 Aug 2020  ·  Weber Matthias ·

In this note, $\mathrm{ZHH}$ production in the all-hadronic final state is studied in $\mathrm{e}^{+}\mathrm{e}^{-}$ collisions at the Compact Linear Collider at the 3 TeV stage. At this stage this Higgs boson pair production mode is sub-leading to the $\mathrm{W}^{+}\mathrm{W}^{-}$ fusion production cross-section of $\mathrm{e}^{+}\mathrm{e}^{-}\rightarrow\mathrm{HH}\nu\nu$. The events are characterised by a topology of six jets, where the masses of the three pair-wise combinations of two jets are compatible with originating from two $\mathrm{H}$ and one $\mathrm{Z}$ bosons. The event selection concentrates on the dominant $\mathrm{H}$ boson decays into two b-quarks by requiring a presence of multiple b-jets. The study is based on full simulation using the CLICdet model, including beam-induced backgrounds from $\gamma\gamma\rightarrow\mathrm{hadrons}$. Results on the measurement of the total $\mathrm{ZHH}$ cross section are given.

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High Energy Physics - Experiment