Looking for exotic multiquark states in nonleptonic B decays

Recent data on inclusive B decays into charmonium states taken by the CLEO Collaboration suggest that a sizeable fraction of the nonleptonic decays may consist of the JψΛp three body final state, corresponding to a distinct enhancement in the inclusive Jψ momentum distribution. The kinematical boundary of this structure corresponds to the case where the Jψ recoils nearly monoenergetically in the B rest system against a partner having mass of ⋍ 2 GeV. This may allow the observation of a Λ - p bound state near or just below threshold; i.e., strange baryonium, even if the production rate is small. Using a phase space approach to the B meson decay, we study the Jψ momentum distribution and the effect of baryonium formation. We also discuss the possible observation of pentaquarks and hadronically-bound Jψ by the observation of monoenergetic baryons in these decays.