A search for hidden-charm pentaquark states decaying to a range of
ΣcD¯ and
Λc+D¯ final states, as well as doubly charmed pentaquark states to
ΣcD and
Λc+D, is made using samples of proton-proton collision data corresponding to an integrated luminosity of
5.7 fb−1 recorded by the LHCb detector at
s=13 TeV. Since no significant signals are found, upper limits are set on the pentaquark yields relative to that of the
Λc+ baryon in the
Λc+→pK−π+ decay mode. The known pentaquark states are also investigated, and their signal yields are found to be consistent with zero in all cases. © 2024 CERN, for the LHCb Collaboration 2024 CERN