Search for boosted Higgs boson production in association with a vector boson in the all hadronic final state with Run 3 data from the CMS detector

We present preliminary results on an updated search for boosted (pT > 250 GeV) Higgs boson pair production, where the Higgs (H) and the vector boson (V) both decay to a pair of quarks. This search uses data collected by the CMS experiment in 2022—2024 with the LHC's proton-proton collisions at a center of mass energy of 13.6 TeV. The decay products of each boson (H and V) are collimated and reconstructed as single large-radius jets. State-of-the-art machine learning taggers are employed to identify the jets and suppress the dominant QCD multijet background, which is estimated using a data-driven method. This talk will summarize the results of the Run 2 analysis, which was statistically limited, and present the current status and strategy of the updated search, which aims to improve the sensitivity to high momentum Higgs boson production with the full Run 2 + Run 3 dataset.