Pathways to Rare Baryonic B Decays

Abstract

We point out new ways to search for charmless baryonic B decays: baryon pair production in association with ${\eta }^{\prime }$ is very likely as large as or even a bit larger than two body $K\pi /\pi \pi$ modes. We extend our argument, in weaker form, to $B\to \gamma +X_s$ and $\ell \nu +X$. Although calculations are not reliable, estimates give branching ratios of order $10^{-5}$--$10^{-6}$, where confidence is gained from recent experimental finding that $B\to D^{\ast }p\bar{n}$, $D^{\ast }p\bar{p}\pi$ are not far below $D^{\ast }\pi$ and $D^{\ast }\rho$ 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 $\Lambda$-baryon can be helpful in CP- and T-violation studies.

12 pages, REVTEX, 3 eps figures included

Cited by in corpus (82)

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• Charmless Three-Body Baryonic B Decays
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• Study of the Baryon-Antibaryon Low-Mass Enhancements in Charmless Three-body Baryonic B Decays
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• Renormalization Group Fixed Point with a Fourth Generation: Higgs-induced Bound States and Condensates
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• Understanding $B\to D^{\ast -}N\bar{N}$ and Its Implications
• Partial waves of baryon-antibaryon in three-body B meson decay
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• Charmless Hadronic B-Meson Decays
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• Flavor Physics and CP Violation
• Testing the W-exchange mechanism with two-body baryonic B decays
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• Measurement of the Branching Fraction and Lambda-bar Polarization in B0 -> Lambda-bar p pi-
• Charmless Two-body Baryonic $B_{u,d,s}$ Decays Revisited
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• Search for $B^0\to p\bar{p}$, $\Lambda \bar{\Lambda }$ and $B^{+}\to p\bar{\Lambda }$ at Belle
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