ÖPG-CMD Joint Meeting 2026

FMS on the lattice -- the structure of asymptotic states in weak physics

Sep 23, 2026, 5:40 PM

20m

HS 11.02 (University of Graz)

3) Contributed talk M40 - Phenomenology and novel observables at future colliders Mini-Colloquium

Speaker

Georg Wieland (University of Graz)

Description

Gauge invariance requires physical states to be composite, even in the weak sector of the Standard Model (SM). The Fröhlich-Morchio-Strocchi (FMS) mechanism resolves this subtlety and predicts additional Higgs contributions in SM processes. In this talk, we explore the FMS mechanism on the lattice by simulating a proxy theory with vectorial leptons. We investigate the physical spectrum of this theory non-perturbatively and examine PDFs as well as cross sections, taking a closer look at the internal structure of the composite Higgs and W/Z bosons, and searching for deviations from standard phenomenology.