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@ARTICLE{Dong:897427,
      author       = {Dong, Xiang-Kun and Baru, Vadim and Guo, Feng-Kun and
                      Hanhart, Christoph and Nefediev, Alexey and Zou, Bing-Song},
      title        = {{I}s the existence of a {J} / ψ {J} / ψ bound state
                      plausible?},
      journal      = {Science bulletin},
      volume       = {66},
      number       = {21},
      issn         = {2095-9273},
      address      = {[S.l.]},
      publisher    = {Science China Press},
      reportid     = {FZJ-2021-03781},
      pages        = {2462},
      year         = {2021},
      abstract     = {In a recent measurement LHCb reported pronounced structures
                      in the spectrum. One of the various possible explanations of
                      those is that they emerge from non-perturbative interactions
                      of vector charmonia. It is thus important to understand
                      whether it is possible to form a bound state of two
                      charmonia interacting through the exchange of gluons, which
                      hadronise into two pions at the longest distance. In this
                      paper, we demonstrate that, given our current understanding
                      of hadron-hadron interactions, the exchange of correlated
                      light mesons (pions and kaons) is able to provide sizeable
                      attraction to the di- system, and it is possible for two
                      mesons to form a bound state. As a side result we find from
                      an analysis of the data for the transition including both
                      and final state interactions an improved value for the
                      transition chromo-electric polarisability: , where the
                      uncertainty also includes the one induced by the final state
                      interactions.},
      cin          = {IAS-4 / IKP-3},
      ddc          = {500},
      cid          = {I:(DE-Juel1)IAS-4-20090406 / I:(DE-Juel1)IKP-3-20111104},
      pnm          = {5111 - Domain-Specific Simulation Data Life Cycle Labs
                      (SDLs) and Research Groups (POF4-511) / DFG project
                      196253076 - TRR 110: Symmetrien und Strukturbildung in der
                      Quantenchromodynamik (196253076)},
      pid          = {G:(DE-HGF)POF4-5111 / G:(GEPRIS)196253076},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000726409800011},
      doi          = {10.1016/j.scib.2021.09.009},
      url          = {https://juser.fz-juelich.de/record/897427},
}