@article{article, title = {{Observation of an Excess of Dicharmonium Events in the Four-Muon Final State with the ATLAS Detector}}, publisher = {{American Physical Society (APS)}}, url = {{http://dx.doi.org/10.1103/physrevlett.131.151902 }}, year = {{2023}}, month = {{10}}, author = {{Aad G and Abbott B and Abeling K and Abicht NJ and Abidi SH and Aboulhorma A and Abramowicz H and Abreu H and Abulaiti Y and Abusleme Hoffman AC and Acharya BS et al}}, doi = {{10.1103/physrevlett.131.151902}}, volume = {{131}}, journal = {{Physical Review Letters}}, issue = {{15}}, note = {{Accessed on 2025/09/15}}}