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arXiv · 2003.13628

Measuring the quartic Higgs self-coupling at a multi-TeV muon collider

Mauro Chiesa·Fabio Maltoni·Luca Mantani·Barbara Mele·Fulvio Piccinini·Xiaoran Zhao
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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 10^35cm^-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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Mauro Chiesa, Fabio Maltoni, Luca Mantani, Barbara Mele, Fulvio Piccinini, Xiaoran Zhao. 2020-03-30. Measuring the quartic Higgs self-coupling at a multi-TeV muon collider. https://doi.org/10.1007/jhep09(2020)098

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