Status of baryonic B decays

Abstract

An overview of exclusive two-body and three-body baryonic B decays is given. The threshold enhancement effect in the dibaryon invariant mass and the angular distributions in the dibaryon rest frame are stressed and explained. Weak radiative baryonic B decays mediated by the electromagnetic penguin process $b\to s\gamma$ are discussed. Apart from the first observation of the radiative penguin decay $B^{-}\to \Lambda \bar{p}\gamma$ with the baryonic final state, the decay $B^{-}\to {\Xi }^0{\bar{\Sigma }}^{-}\gamma$ at the level of $6\times 10^{-7}$ may be accessible to B factories in the near future.

6 pages, 1 figure, talk presented at the Fist Workshop on Theory, Phenomenology and Experiments in Heavy Flavor Physics, Capri, Italy, May 29-31, 2006

References in corpus (27)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Observation of $B^{\pm }\to p\bar{p}{K}^{\pm }$
• Cabibbo-allowed nonleptonic weak decays of charmed baryons
• Pathways to Rare Baryonic B Decays
• Measurements of Charmless Hadronic Two-Body B Meson Decays and the Ratio cal B(B--> DK)/ cal B(B--> Dπ)
• Low-Mass Baryon-Antibaryon Enhancements in B Decays
• Charmless Exclusive Baryonic B Decays
• Charmless Three-Body Baryonic B Decays
• Observation of B+ to Lambda Lambdabar K+
• Study of the Baryon-Antibaryon Low-Mass Enhancements in Charmless Three-body Baryonic B Decays
• Observation of B0 to p Lambdabar pi-
• Three-body Baryonic anti-B -->Lambda anti-p pi Decays and Such
• Observation of B0bar->Lambda_c+pbar decay
• Understanding $B\to D^{\ast -}N\bar{N}$ and Its Implications
• First Observation of the Decays $B^0\to D^{\ast -}p\bar{p}{\pi }^{+}$ and B^{0}\to D^{*-}p\bar{n}$
• Search for the Decay B0 -> ppbar
• Observation of B- -> J/psi Lambda pbar and searches for B- -> J/psi Sigma0 pbar and B0 -> J/psi p pbar Decays
• Three-Body Charmful Baryonic B Decays $\bar{B}\to D(D^{\ast })N\bar{N}$
• Penguin-Induced Radiative Baryonic B Decays
• Radiative Baryonic $B$ Decays
• Search for Exclusive Rare Baryonic Decays of $B$ Mesons
• Hadronic B Decays to Charmed Baryons
• Doubly Charmful Baryonic B Decays
• Evidence for B+ --> Jpsi p Lambda-bar and Search for B0 --> Jpsi p p-bar
• Search for $B^0\to p\bar{p}$, $\Lambda \bar{\Lambda }$ and $B^{+}\to p\bar{\Lambda }$ at Belle
• Production of doubly charmed baryons in B decays
• Penguin-induced Radiative Baryonic B Decays Revisited

Cited by in corpus (4)

• Final stare interaction enhancement effect on the near threshold p\bar p system in B^\pm\to p\bar p \p^\pm decay
• Higher twist corrections to doubly-charmed baryonic $B$ decays
• Observation of the decays $B^{+}\to {\Sigma }_c(2455{)}^{++}{\overline{\Xi }}_c^{-}$ and $B^0\to {\Sigma }_c(2455{)}^0{\overline{\Xi }}_c^0$
• First observation of the ${\overline{B}}_s^0\to {\Lambda }_c^{+}{\overline{\Lambda }}_c{}^{-}$ decay and evidence for the ${\overline{B}}^0\to {\Lambda }_c^{+}{\overline{\Lambda }}_c{}^{-}$ decay