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We reanalyze the dissociation process of the $J/\psi$ by $\pi$ and $\rho$mesons into $D + \bar{D}$, $D^* + \bar{D}$, $D + \bar{D}^*$, and $D^* +\bar{D}^*$ within a meson exchange model. In addition to the dissociationmechanisms considered in the literature, we consider anomalous parityinteractions, whose couplings are constrained by heavy quark spin symmetry andphenomenology. This opens new dissociation channels and adds new diagrams inthe previously considered processes. Compared to the previous results, we findthat these new additions have only a minor effect on the $\rho + J/\psi$ totalinelastic cross section, but reduce the one for $\pi + J/\psi$ by about 50 %near the threshold.Comment: 21 pages, REVTeX, 7 figures, references added, to appear in Phys.  Rev.

physical review. c. nuclear physics/physical review. c, nuclear physics

<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>J</mml:mi><mml:mo>/</mml:mo><mml:mi>ψ</mml:mi></mml:math>absorption by<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>π</mml:mi></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>ρ</mml:mi></mml:math>mesons in a meson exchange model with anomalous parity interactions

J/ψabsorption byπandρmesons in a meson exchange model with anomalous parity interactions