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arXiv · 2610.17263

Neutrino Tridents and $W$-boson production at the Muon Collider

Felix Kling·Toni Mäkelä·Sebastian Trojanowski·Bei Zhou
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Abstract

Muon colliders are exceptionally intense sources of multi-TeV neutrinos, allowing even relatively small detectors to record large rates of neutrino interactions. In addition to serving as neutrino-ion collider for precision measurements of neutrino deep inelastic scattering, this setup allow to study even rare neutrino processes with at high statistics. In this study, we investigate the feasibility of measuring neutrino trident and on-shell W-boson production, predicting over one million trident events and one hundred thousand W-boson events in a 100 kg silicon-based active target over ten years and allowing to detect these processes for the first time. We further show that these measurements could constrain new vector and axial-vector interactions beyond projected DUNE sensitivities and provide unprecedented constraints on the high-x photon distribution through W-boson production near threshold. We also discuss strategies for signal-background discrimination and the resulting detector requirements.

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Felix Kling, Toni Mäkelä, Sebastian Trojanowski, Bei Zhou. 2026-10-12. Neutrino Tridents and $W$-boson production at the Muon Collider. https://arxiv.org/abs/2610.17263

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