J/ψ absorption by nucleons in the meson-exchange model

نویسندگان

  • Yongseok Oh
  • Wei Liu
  • C. M. Ko
چکیده

We reinvestigate theJ/ψ dissociation processes induced by the reactions with nucleons, J/ψ+N → D̄+ c, in the meson-exchange model. Main constraints used in this work are vector-meson dominance and charm vector-current conservation. We show that the cross section for J/ψ +N → D̄ + c can be larger than that for J/ψ+N → D̄ + c when these constraints are imposed. The dependence of the cross sections on the coupling constants is analyzed in detail, and the comparison with the recent quark-interchange model predictions is also made.

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تاریخ انتشار 2007