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has been cited by the following article:

• TITLE: Investigation on Virtual State Contribution to Gauge Invariant Cross Section of e+e-→J/ψ+ηc in Bethe-Salpeter Framework

  AUTHORS: Shashank Bhatnagar, Ming Li, Shiyuan Li

  KEYWORDS: Bethe-Salpeter Wave Function, Virtual States, Relative Momentum

  JOURNAL NAME: Journal of Modern Physics, Vol.5 No.11, June 30, 2014

  ABSTRACT: It is shown that the virtual states and relative momentum of the constituents of the bound states are very important for the cross section of the process e+e-→J/ψ+ηc with the help of the Bethe-Salpeter wave function description of the bound states. The gauge invariance of the cross section is demonstrated. The numerical results can explain the experimental data.