Pathways to Rare Baryonic B Decays

We point out new ways to search for charmless baryonic B decays and suggest that enhanced baryon production is favored by reduced energy release on the baryon side. Thus B→η^′+baryon pairs might be larger than Kπ/ππ modes; the argument may be extended to B→γ+X_s, and perhaps to ℓν+X_u. Guess estimates give some branching ratios in the 10^-3– 10^-6 range, with confidence gained from the recent observation of B→D̅ ^*pn̅ , D̅ ^*pp̅ π not far below D̅ ^*π and D̅ ^*ρ rates. Observation of modes proposed here would help clarify the dynamics of weak decays involving baryons, while the self-analyzing prowess of Λ decay can be helpful in CP- and T-violation studies.