Pathways to Rare Baryonic B Decays Typeset Using Revt E X

We point out new ways to search for charmless baryonic B decays: baryon pair production in association with η ′ is very likely as large as or even a bit larger than two body Kπ/ππ modes. We extend our argument, in weaker form, to B → γ + X s and ℓν + X. Although calculations are not reliable, estimates give branching ratios of order 10 −5 –10 −6 , where confidence is gained from recent experimental finding that B → D * p¯ n, D * p¯ pπ are not far below D * π and D * ρ rates. Observation of charmless baryon modes would help clarify the dynamics of weak decays to baryonic final states, while the self-analyzing prowess of the Λ-baryon can be helpful in CP-and T-violation studies.