Morii, Masahiro2022-04-222017The ATLAS Collaboration. 2017. Measurements of ψ(2S) and X(3872) → J/ψπ + π − production in pp collisions at s√=8 s = 8 TeV with the ATLAS detector. Journal of High Energy Physics 2017: 117.https://nrs.harvard.edu/URN-3:HUL.INSTREPOS:37371438en-USMeasurements of ψ(2S) and X(3872) → J/ψπ + π − production in pp collisions at s√=8 s = 8 TeV with the ATLAS detectorJournal Article2018-07-2320172022-04-2210.1007/JHEP01(2017)117