ATLAS Collaboration, Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;
ATLAS Collaboration (2018). Searches for exclusive Higgs and $Z$ boson decays into $J/\psi\gamma$, $\psi(2S)\gamma$, and $\Upsilon(nS)\gamma$ at $\sqrt{s}=13$ TeV with the ATLAS detector. Physics Letters B, (786), 134. Retrieved from https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2018-151.