A phenomenological analysis on isospin-violating decay of X(3872)

  title={A phenomenological analysis on isospin-violating decay of X(3872)},
  author={Qi Wu and Dian-Yong Chen and Takayuki Matsuki},
  journal={The European Physical Journal C},
In a molecular scenario, we investigate the isospin-breaking hidden charm decay processes of X (3872), i.e., $$X(3872) \rightarrow \pi ^+ \pi ^- J/\psi $$ X ( 3872 ) → π + π - J / ψ , $$X(3872) \rightarrow \pi ^+ \pi ^- \pi ^0 J/\psi $$ X ( 3872 ) → π + π - π 0 J / ψ , and $$X(3872)\rightarrow \pi ^0\chi _{cJ}$$ X ( 3872 ) → π 0 χ cJ . We assume that the source of the strong isospin violation comes from the different coupling strengths of X (3872) to its charged components $$D^{*+} D^-$$ D… 

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Revisit the isospin violating decays of X(3872)

Lu Meng,1 Guang-Juan Wang,2 Bo Wang,3, 4, ∗ and Shi-Lin Zhu5, † Ruhr-Universität Bochum, Fakultät für Physik und Astronomie, Institut für Theoretische Physik II, D-44780 Bochum, Germany Advanced



doi:10.1103/PhysRevD.81.031103 [arXiv:0810.0358 [hep-ex]

  • [Belle Collaboration], Phys. Rev. D 81,
  • 2010

doi:10.1103/PhysRevLett.124.242001 [arXiv:2001.01156 [hep-ex]

  • [BESIII Collaboration], Phys. Rev. Lett. 124,
  • 2020

doi:10.1103/PhysRevD.77.011102 [arXiv:0708.1565 [hep-ex]

  • [BaBar Collaboration], Phys. Rev. D 77,
  • 2008

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