The SU(2) gauge group with two fundamental flavors is a candidate for a composite Higgs extension of the Standard Model. Central to Higgs phenomenology is a non-perturbative determination of observables of the theory, such as the decay constant of the pseudo-Nambu-Goldstone Bosons. We present preliminary results for the continuum limit of the pseudoscalar decay constant using a mixed-action setup, with non-perturbatively improved stabilized Wilson Fermions on the sea, and maximally twisted valence quarks. Pivotal to this study is the recent porting of our simulation suite HiRep to GPU architecture.
@article{arxiv.2412.06471,
title = {Determination of the pseudoscalar decay constant from SU(2) with two fundamental flavors},
author = {Laurence Sebastian Bowes and Vincent Drach and Patrick Fritzsch and Sofie Martins and Antonio Rago and Fernando Romero-López},
journal= {arXiv preprint arXiv:2412.06471},
year = {2024}
}
Comments
Proceedings contribution to "The 41st International Symposium on Lattice Field Theory (LATTICE2024)"