中国物理学会高能物理分会第十一届全国会员代表大会暨学术年会

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