@article{article, title = {{Observation of structures in the J / ψ + ψ ( 2 S ) mass spectrum with the ATLAS detector}}, publisher = {{American Physical Society (APS)}}, url = {{https://doi.org/10.1103/zhkx-k9zl }}, year = {{2026}}, month = {{6}}, author = {{Aad G and Aakvaag E and Abbott B and Abdelhameed S and Abeling K and Abicht NJ and Abidi SH and Aboelela M and Aboulhorma A and Abramowicz H and Abulaiti Y et al}}, doi = {{10.1103/zhkx-k9zl}}, volume = {{113}}, journal = {{Physical Review D}}, issue = {{11}}, note = {{Accessed on 2026/07/05}}}