@article{Colquhoun:2024LZ, author = "Colquhoun, Brian and Davies, Christine and Lepage, G. Peter", title = "{Precise decay rates for $\eta_c\to\gamma\gamma$ and $\eta_b\to\gamma\gamma$ from lattice QCD}", doi = "10.22323/1.476.0473", journal = "PoS", year = 2024, volume = "ICHEP2024", pages = "473" }