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

Yongseok Oh·Wei Liu·C. M. Ko
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Abstract

We reinvestigate the $J/ψ$ dissociation processes induced by the reactions with nucleons, $J/ψ+ N \to \bar{D}^{(*)} + Λ_c$, 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 $J/ψ+ N \to \bar{D} + Λ_c$ can be larger than that for $J/ψ+ N \to \bar{D}^{*} + Λ_c$ 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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Yongseok Oh, Wei Liu, C. M. Ko. 2007-05-09. J/psi absorption by nucleons in the meson-exchange model. https://doi.org/10.1103/physrevc.75.064903

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