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Study of the B -> Lc Lcbar K decay at LHCb

Aug 10, 2022, 2:40 PM
Oral report 强子物理与味物理 Parallel Session V (2):Hadron and Flavor Physics




A charmed baryon with strange quark, Xic(2930), was found in the B- -> Lc Lcbar K- decay at B-factories, yet the study of Lc K- pairs produced directly in pp collisions at LHCb finds two baryon states, Xic(2923) and Xic(2939), at this mass region. These two states are confirmed by a recent study of B- -> Lc Lcbar K- at LHCb using pp collision data at 13 TeV. Other features in the Lc K- mass spectrum are also studied. The relative branching fraction of the channel is reported with respect to B -> DDK

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