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Nonfactorizable contributions in B decays to charmonium: the case of $B^- \to K^- h_c$

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arxiv hep-ph/0310084 v1 pith:TRRKH5DM submitted 2003-10-07 hep-ph

P. Colangelo , F. De Fazio , T.N. Pham This is my paper
classification hep-ph
keywords modecharmoniumdecaydecaysmesonstateamplitudeanalogous
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

Nonleptonic $B$ to charmonium decays generally show deviations from the factorization predictions. For example, the mode $B^- \to K^- \chi_{c0}$ has been experimentally observed with sizeable branching fraction while its factorized amplitude vanishes. We investigate the role of rescattering effects mediated by intermediate charmed meson production in this class of decay modes, and consider $B^- \to K^- h_c$ with $h_c$ the $J^{PC}=1^{+-}$ $\bar c c$ meson. Using an effective lagrangian describing interactions of pairs of heavy-light $Q{\bar q}$ mesons with a quarkonium state, we relate this mode to the analogous mode with $\chi_{c0}$ in the final state. We find ${\cal B}(B^- \to K^- h_c)$ large enough to be measured at the $B$ factories, so that this decay mode could be used to study the poorly known $h_c$.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Resolving the CP Asymmetry Puzzle in $B$ Decays with Unitarized Final-State Interactions

    hep-ph 2026-06 unverdicted novelty 6.0 of 10

    A unitarized FSI framework with no adjustable parameters for B decays, calibrated on BaBar γγ o D Dbar data, predicts enhanced CP asymmetries in pure-annihilation channels that match existing measurements.

  2. Double-strangeness hidden-charm pentaquarks

    hep-ph 2025-06 conditional novelty 5.0 of 10

    A coupled-channel calculation predicts five narrow negative-parity and three broad positive-parity double-strangeness hidden-charm pentaquark states.

  3. Unquenched Charmonium and Beyond

    hep-ph 2026-02 conditional novelty 2.0 of 10

    This Lanzhou-group review argues that coupled-channel (unquenched) effects, not exotic constituents, are the common thread explaining charmonium anomalies from the rho-pi puzzle to the Y-problem states.

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