Abstract
Measuring the shape of the Higgs boson potential is of paramount importance, and will be a challenging task at current as well as future colliders. While the expectations for the measurement of the trilinear Higgs self-coupling are rather promising, an accurate measurement of the quartic self-coupling interaction is presently considered extremely challenging even at a future 100 TeV proton-proton collider. In this work we explore the sensitivity that a muon collider with a center of mass energy in the multi-TeV range and luminosities of the order of 1035cm−2s−1, as presently under discussion, might provide, thanks to a rather large three Higgs-boson production and to a limited background. By performing a first and simple analysis, we find a clear indication that a muon collider could provide a determination of the quartic Higgs self-coupling that is significantly better than what is currently considered attainable at other future colliders.
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Chiesa, M., Maltoni, F., Mantani, L. et al. Measuring the quartic Higgs self-coupling at a multi-TeV muon collider. J. High Energ. Phys. 2020, 98 (2020). https://doi.org/10.1007/JHEP09(2020)098
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DOI: https://doi.org/10.1007/JHEP09(2020)098