Subleading Higgs effects at lepton colliders

Autor(en)

Axel Maas, Duifje M. van Egmond, Simon Plätzer

Abstrakt

Subtle field-theoretical effects suggest the presence of additional Higgs contributions in standard model processes. This has been supported by electroweak lattice calculation, e. g. for vector boson scattering. These effects can be included in perturbation theory by a suitable augmentation. We use such augmented perturbation theory to determine the impact at next-to-leading order at lepton colliders, from LEP to future machines such as FCC, in collisions with fermion-antifermion final states. After providing the formal background, we outline the calculational procedure, showing that in the fully exclusive process e-e+ → f (Equation presented) deviations only occur in fixed order at electroweak NNLO, but become relevant at the TeV scale already in resummed tree-level calculations. We discuss further processes where deviations are expected already at fixed-order NLO.

Organisation(en)

Teilchenphysik

Externe Organisation(en)

Karl-Franzens-Universität Graz, Universidade Federal Fluminense

Journal

Proceedings of Science

Band

476

Anzahl der Seiten

6

DOI

https://doi.org/10.48550/arXiv.2409.20131

Publikationsdatum

04-2025

Peer-reviewed

Ja

ÖFOS 2012

103012 Hochenergiephysik

ASJC Scopus Sachgebiete

General

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/782dff5b-291f-436d-8a9f-bd11d99cf1d0