Resonances gone topsy turvy - the charm of QCD or new physics in b→sℓ+ℓ−?

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B →Vℓ+ℓ− in the Standard Model from light-cone sum rules (2015, methodology): “y free from model-dependence.13 At q2 approaching the charmonium resonance region, the contribution is predicted to be signicantly enhanced, rendering the partonic theory prediction unreliable 12Cf. [66] for a recent determination. 13The problem is that the two eects are computed in two, slightly, d”
Λ b →Λ ℓ + ℓ - form factors, differential branching fraction, and angular observables from lattice QCD with relativistic b quarks (2016, methodology): “In the high-q(2) region, which is affected by multiple broad charmonium resonances [24], it is has been argued using quark-hadron duality that these functions correctly describe the charm effects to some extent for observables binned over a wide enough range [20].”