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.
@article{arxiv.2003.13628,
title = {Measuring the quartic Higgs self-coupling at a multi-TeV muon collider},
author = {Mauro Chiesa and Fabio Maltoni and Luca Mantani and Barbara Mele and Fulvio Piccinini and Xiaoran Zhao},
journal= {arXiv preprint arXiv:2003.13628},
year = {2020}
}
Comments
Table 3 and figs.14-18 added. Matches version published on JHEP