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. We explore the possibility that some of the five narrow Ωc resonances recently observed at LHCb could correspond to pentaquark states, structured as meson-baryon bound states or molecules. The interaction of the low-lying pseudoscalar mesons with the ground-state baryons in the charm +1 , strangeness -2 and isospin 0 sector is built from t-channel vector meson exchange, using effective...
We present results for five reactions, Λb→J/ψK−p, Λb→J/ψηΛ, Λb→J/ψπ−p, Λb→J/ψK0Λ and Ξb−→J/ψK−Λ, where combining information from the meson baryon interaction, using the chiral unitary approach, and predictions made for molecular states of hidden charm, with or without strangeness, we can evaluate invariant mass distributions for the light meson baryon states, and for those of J/ψp or J/ψΛ. We show...
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