Pentaquark states with the configuration in a simple model
2019
We discuss the mass splittings for the S -wave triply heavy pentaquark states with the configuration which is a mirror structure of . The latter configuration is related with the nature of observed by the LHCb Collaboration. The considered pentaquark masses are estimated with a simple method. One finds that such states are probably not narrow even if they do exist. This leaves room for molecule interpretation for a state around the low-lying threshold of a doubly heavy baryon and a heavy-light meson, e.g. , if it were observed. As a by product, we conjecture that upper limits for the masses of the conventional triply heavy baryons can be determined by the masses of the conventional doubly heavy baryons.
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