A search for hidden-charm pentaquark states decaying to a range of SigmacDbar and Lambdac+Dbar final states, as well as doubly charmed pentaquark states to SigmacD and Lambdac+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 Lambdac+ baryon in the Lambdac+ -> pK-pi+ decay mode. The known pentaquark states are also investigated, and their signal yields are found to be consistent with zero in all cases.
Search for prompt production of pentaquarks in charm hadron final states
Bassi G.Membro del Collaboration Group
;Kleijne N.Membro del Collaboration Group
;Morello M. J.Membro del Collaboration Group
;Passaro D.Membro del Collaboration Group
;Pica L.Membro del Collaboration Group
;Ribatti R.Membro del Collaboration Group
;Riccardi D.Membro del Collaboration Group
;
2024
Abstract
A search for hidden-charm pentaquark states decaying to a range of SigmacDbar and Lambdac+Dbar final states, as well as doubly charmed pentaquark states to SigmacD and Lambdac+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 Lambdac+ baryon in the Lambdac+ -> pK-pi+ decay mode. The known pentaquark states are also investigated, and their signal yields are found to be consistent with zero in all cases.File in questo prodotto:
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PhysRevD.110.032001.pdf
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