File:PhysRevLett.122.222001.pdf
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Observation of a Narrow Pentaquark State, Pc(4312)+, and of the Two-Peak Structure of the Pc(4450)+
Summary[edit]
| Description |
English: A narrow pentaquark state, Pc(4312)+, decaying to J/ψp, is discovered with a statistical significance of 7.3σ in a data sample of Λ0b→J/ψpK− decays, which is an order of magnitude larger than that previously analyzed by the LHCb Collaboration. The Pc(4450)+ pentaquark structure formerly reported by LHCb is confirmed and observed to consist of two narrow overlapping peaks, Pc(4440)+ and Pc(4457)+, where the statistical significance of this two-peak interpretation is 5.4σ. The proximity of the Σ+c¯D0 and Σ+c¯D*0 thresholds to the observed narrow peaks suggests that they play an important role in the dynamics of these states. |
| Date | |
| Source |
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.122.222001 https://doi.org/10.1103/PhysRevLett.122.222001 |
| Author | R. Aaij et al. (LHCb Collaboration) |
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| current | 11:01, 12 June 2019 |  | 1,275 × 1,650, 11 pages (815 KB) | Pamputt (talk | contribs) | User created page with UploadWizard |
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