The Ξ_c^+K^- mass spectrum is studied with a sample of pp collision data corresponding to an integrated luminosity of 3.3 fb^-1, collected by the LHCb experiment. The Ξ_c^+ is reconstructed in the decay mode pK^-π^+. Five new, narrow excited Ω_c^0 states are observed: the Ω_c(3000)^0, Ω_c(3050)^0, Ω_c(3066)^0, Ω_c(3090)^0, and Ω_c(3119)^0. Measurements of their masses and widths are reported.
Observation of Five New Narrow Ω_c^0 States Decaying to Ξ_c^+K^-
Veltri, M;
2017
Abstract
The Ξ_c^+K^- mass spectrum is studied with a sample of pp collision data corresponding to an integrated luminosity of 3.3 fb^-1, collected by the LHCb experiment. The Ξ_c^+ is reconstructed in the decay mode pK^-π^+. Five new, narrow excited Ω_c^0 states are observed: the Ω_c(3000)^0, Ω_c(3050)^0, Ω_c(3066)^0, Ω_c(3090)^0, and Ω_c(3119)^0. Measurements of their masses and widths are reported.File in questo prodotto:
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