Overlap quark propagator near the physical pion mass

Abstract

The Landau-gauge quark propagator is calculated using overlap fermions on 2+1-flavour dynamical fermion gauge fields from the PACS-CS collaboration with pion mass $m_{\pi }\sim 156\text{ MeV}$ and spatial volume $\sim (3\text{ fm}{)}^3.$ The observed features of the mass and renormalisation functions are discussed, including a comparison with recent results using $\mathcal{O}(a)$-improved Wilson fermions on 2-flavour dynamical gauge fields.

8 pages, 4 figures

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Cited by in corpus (3)

• Numerical indication that center vortices drive dynamical mass generation in QCD
• RI/(S)MOM renormalizations of overlap quark bilinears with different levels of hypercubic smearing
• Gribov copies in the quark propagator