PT Journal AU LHCb Collaboration (Aaij, Rea Jaimes Elles, SJ Jashal, BK Martinez-Vidal, F Oyanguren, A Rebollo De Miguel, M Remon Alepuz, C Ruiz Vidal, J Sanderswood, I TI Observation of New Ω0c States Decaying to the Ξc plus K- Final State SO Physical Review Letters JI Phys. Rev. Lett. PY 2023 BP 131902 - 11pp VL 131 IS 13 DI 10.1103/PhysRevLett.131.131902 LA English AB Two new excited states, S2c(3185)0 and S2c(3327)0, are observed in the E thorn c K- invariant-mass spectrum using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb-1. Five previously observed excited S20c states are confirmed, namely S2c(3000)0, S2c(3050)0, S2c(3065)0, S2c(3090)0, and S2c(3119)0. The masses and widths of these seven states are measured with the highest precision to date. ER