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Observation of five new narrow Ω0c states decaying to Ξ+cK−

Abstract : The Ξ+cK− 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 Ω0c states are observed: the Ωc(3000)0, Ωc(3050)0, Ωc(3066)0, Ωc(3090)0, and Ωc(3119)0. Measurements of their masses and widths are reported.
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Contributor : Claudine Bombar Connect in order to contact the contributor
Submitted on : Monday, March 27, 2017 - 10:33:33 AM
Last modification on : Friday, November 26, 2021 - 11:58:02 AM

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R. Aaij, L. Beaucourt, M. Chefdeville, D. Decamp, N. Déléage, et al.. Observation of five new narrow Ω0c states decaying to Ξ+cK−. Physical Review Letters, American Physical Society, 2017, 118, pp.182001 ⟨10.1103/PhysRevLett.118.182001⟩. ⟨in2p3-01495988⟩



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