3 papers
hep-lat2025
S-wave flavor-singlet meson mixing in QCD with light and charm quarks
Juan Andrés Urrea-Niño, Jacob Finkenrath, Roman Höllwieser +3
We investigate the mixing between flavor-singlet light meson and charmonium operators in the S-wave channels, i.e. pseudo-scalar and vector channel, at two different pion masses. W…
hep-lat2024
The determination of potential scales in 2+1 flavor QCD
Tom Matty Bo Asmussen, Roman Höllwieser, Francesco Knechtli +1
We calculate the hadronic scales , and their ratio on flavor QCD ensembles generated by the CLS consortium. These scales are determined from a…
hep-lat2019
Constrained Hybrid Monte Carlo algorithms for gauge-Higgs models
Michael Günther, Roman Höllwieser, Francesco Knechtli
We develop Hybrid Monte Carlo (HMC) algorithms for constrained Hamiltonian systems of gauge- Higgs models and introduce a new observable for the constraint effective Higgs potentia…