hep-lat hep-ph
Lattice QCD calculation of the $η$ and $η^{\prime}$ meson masses at the physical point using rooted staggered fermions
Willem E. A. Verplanke Zoltan Fodor Antoine Gerardin Jana N. Guenther Laurent Lellouch Kalman K. Szabo Balint C. Toth Lukas Varnhorst