Scaling study for 2 HEX smeared fermions: hadron and quark masses

Thorsten Kurth (1) , Stephan Durr (1, 2) , Zoltan Fodor (1, 3, 2) , Christian Hoelbling (1) , Sandor D. Katz (3) , Stefan Krieg (1, 2) , Laurent Lellouch (4, 5) , Thomas Lippert (1, 2) , Kalman K. Szabo (1) , Gregory Vulvert (4, 5)

1 Theoretische Teilchenphysik
2 JSC - Jülich Supercomputing Centre
3 Departement for Theoretical Physics
4 CPT - E1 Physique des particules
5 CPT - Centre de Physique Théorique - UMR 7332

The goal of this study is to investigate the scaling behaviour of our 2 HEX action. For this purpose, we compute the $N_f=3$ spectrum and compare the results to our 6 EXP action. We find a large scaling window up to $\sim 0.15\,\mathrm{fm}$ along with small scaling corrections at the 2%-level and full compatibility with our previous study. As a second important observable to be tested for scaling, we chose the non-perturbatively renormalized quenched strange quark mass. Here we find a fairly flat scaling with a broad scaling range up to $\simeq 0.15\,\mathrm{fm}$ and perfect agreement with the literature.

Domaines: Physique des Hautes Energies - Réseau [hep-lat]

Thorsten Kurth, Stephan Durr, Zoltan Fodor, Christian Hoelbling, Sandor D. Katz, et al.. Scaling study for 2 HEX smeared fermions: hadron and quark masses. 28th International Symposium on Lattice Field Theory (Lattice 2010), Jun 2010, Villasimius, Italy. pp.232. ⟨hal-01258061⟩