The Sign of Gauge-Higgs Couplings at Future Lepton Colliders
Carlos Henrique de Lima, Douglas Tuckler
TL;DR
This paper demonstrates that future high-energy lepton colliders can definitively determine the sign of gauge-Higgs couplings using the vector boson fusion process, providing a model-independent probe of new physics effects.
Contribution
It introduces a method to determine the sign of gauge-Higgs couplings at future colliders via VBF, emphasizing its model independence and sensitivity to interference effects.
Findings
High-energy colliders can fully determine the gauge-Higgs coupling sign.
The VBF $Zh$ process is effective for probing interference effects.
Model-independent determination of the coupling sign is feasible.
Abstract
This work investigates the capability of future lepton colliders to determine the sign of the gauge-Higgs coupling through the vector boson fusion (VBF) process. This channel offers a model-independent way to probe the sign of the gauge-Higgs coupling. Its sensitivity to interference effects and universal coupling with new physics makes it particularly effective. We show that a high-energy lepton collider such as CLIC can fully determine the sign of the gauge-Higgs coupling in a model-independent way and with high confidence.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Distributed and Parallel Computing Systems · Computational Physics and Python Applications