Lattice QCD calculation of the $\eta$ and ${\eta }^{\prime }$ meson masses at the physical point using rooted staggered fermions

Willem E. A. Verplanke, Zoltan Fodor, Antoine Gerardin +5

We present a lattice calculation of the $\eta$ and ${\eta }^{\prime }$ meson masses at the physical point and in the continuum limit, based on $N_f=2+1+1$ flavors of rooted staggered quark…