Production of $pi^0$ and $eta$ mesons in U$+$U collisions at $sqrt{s_{_{NN}}}=192$ GeV

The PHENIX experiment at the Relativistic Heavy Ion Collider measured $pi^0$ and $eta$ mesons at midrapidity in U$+$U collisions at $sqrt{s_{_{NN}}}=192$ GeV in a wide transverse momentum range. Measurements were performed in the $pi^0(eta)rightarrowgammagamma$ decay modes. A strong suppression of $pi^0$ and $eta$ meson production at high transverse momentum was observed in central U$+$U collisions relative to binary scaled $p$$+$$p$ results. Yields of $pi^0$ and $eta$ mesons measured in U$+$U collisions show similar suppression pattern to the ones measured in Au$+$Au collisions at $sqrt{s_{_{NN}}}=200$ GeV for similar numbers of participant nucleons. The $eta$/$pi^0$ ratios do not show dependence on centrality or transverse momentum, and are consistent with previously measured values in hadron-hadron, hadron-nucleus, nucleus-nucleus, and $e^+e^-$ collisions.