Lattice QCD determination of the radiative decay rates $h_c\to {\eta }_c\gamma$ and $h_b\to {\eta }_b\gamma$

D. Bečirević, R. Di Palma, R. Frezzotti +4

We present the results of our lattice QCD computation of the hadronic matrix elements relevant to the $h_c\to {\eta }_c\gamma$ and $h_b\to {\eta }_b\gamma$ decays by using the gauge configuratio…