Physics Letters B (May 2023)
Overlap quark propagator near the physical pion mass
Abstract
The Landau-gauge quark propagator is calculated using overlap valence fermions on 2+1-flavour dynamical clover fermion gauge fields from the PACS-CS collaboration with pion mass mπ∼156 MeV and spatial volume ∼(3 fm)3. The observed features of the mass and renormalisation functions are discussed, including a comparison with recent results using O(a)-improved Wilson fermions on 2-flavour dynamical gauge fields.