2018/07/04 by Karl Nordström, Nordström, Karl, Andreas Papaefstathiou +1 · 1 citation
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle Detector Development and Performance #Particle physics theoretical and experimental studies
paper · doi:10.48550/arxiv.1807.01571
openalex publication_date 2018/07/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study the phenomenology of associated production of a vector boson with a pair of Higgs bosons (VHH) at the High-Luminosity LHC. Despite the low rate of this channel, the scaling of the cross section suggests a measurement could be a useful probe of modifications of the trilinear Higgs boson coupling and anomalous interactions in the gauge-Higgs sector. We focus on both WHH and ZHH production, using the leptonic (W → l ν, Z → ll, Z → νν) decay modes of the vector bosons and the HH → 4b di-Higgs decay mode. We show that top pair backgrounds are problematic for the W → l ν and Z → νν channels, leaving Z → ll as the most promising decay mode. However, even for this channel, we find limited sensitivity due to a low signal rate. We discuss some potential avenues for improvement.