Journal
PHYSICAL REVIEW C
Volume 63, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.63.034901
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We reanalyze the dissociation process of the J/psi by pi and rho mesons into D+(D) over bar, D*+(D) over bar, D+(D) over bar*, and D*+(D) over bar* within a meson exchange model. In addition to the dissociation mechanisms considered in the literature, we consider anomalous parity interactions, whose couplings are constrained by heavy quark spin symmetry and phenomenology. This opens new dissociation channels and adds new diagrams in the previously considered processes. Compared to the previous results, we find that these new additions have only a minor effect on the rho +J/psi total inelastic cross section, but reduce the one for pi +J/psi by about 50% near the threshold.
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