Speaker
Description
We start from the assumption that the Λc(2940) and Λc(2910) correspond mostly to D∗N bound states with JP = 1/2− and 3/2−, respectively. Then, adding a D meson as a third particle, and as- suming that the DN and DD∗ interactions are mainly dominated by the Λc(2765) and Tcc(3875) resonances, we look for the possible binding of the D∗DN three body system within the framework of the Fixed Center Approximation. We find one state for each spin channel with a binding of about 60 MeV with respect to the Λc(2940)D and Λc(2910)D thresholds and a width of about 90 MeV. As an alternative picture we also study the system as a cluster of DN and a D∗ meson interacting on the cluster, and find similar results. The observation of these JP = 1/2+, 3/2+ states would provide new and valuable infor- mation concerning the DN and D∗N interaction, a topic of current interest.
| session | B. Hadron Spectroscopy |
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