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arXiv · 2410.06991

Higgs-muon interactions at a multi-TeV muon collider

Yang Ma·Eugenia Celada·Tao Han·Wolfgang Kilian·Nils Kreher·Fabio Maltoni·Davide Pagani·Jürgen Reuter·Tobias Striegl·Keping Xie
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Abstract

We establish a simple yet general parameterization of Higgs-muon interactions within the effective field theory frameworks, including both the Higgs Effective Field Theory (HEFT) and the Standard Model Effective Field Theory (SMEFT). We investigate the potential of a muon collider, operating at center-of-mass energies of 3 and 10 TeV, to probe Higgs-muon interactions. All possible processes involving the direct production of multiple electroweak bosons ($W$, $Z$, and $H$) with up to five final-state particles are considered. Our findings indicate that a muon collider can achieve greater sensitivity than the high-luminosity LHC, especially considering the independence of the Higgs decay branching fraction to muons. Notably, a 10 TeV muon collider offers exceptional sensitivity to muon-Higgs interactions, surpassing the 3 TeV option. In particular, searches based on multi-Higgs production prove highly effective for probing these couplings.

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Yang Ma, Eugenia Celada, Tao Han, Wolfgang Kilian, Nils Kreher, Fabio Maltoni, Davide Pagani, Jürgen Reuter, Tobias Striegl, Keping Xie. 2024-10-09. Higgs-muon interactions at a multi-TeV muon collider. https://doi.org/10.22323/1.476.0092

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