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Evidence for exotic hadron contributions to $\Lambda_b^0 \to J/\psi p \pi^-$ decays

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Academic year: 2021

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Figure

Figure 1: Invariant mass spectrum for the selected Λ 0 b → J/ψ pπ − candidates.
Table 1: The N ∗ resonances used in the different fits. Parameters are taken from the PDG [13].
Figure 2: Background-subtracted data and fit projections onto m pπ . Fits are shown with models containing N ∗ states only (EM) and with N ∗ states (RM) plus exotic contributions.
Figure 4: Background-subtracted data and fit projections onto m J/ψ π for (a) all events and (b) the m pπ > 1.8 GeV region
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