Radiative Baryonic $B$ Decays

Abstract

We study the structure-dependent contributions to the radiative baryonic $B$ decays of $B\to \mathbf{B}{\bar{\mathbf{B}}}^{\prime }\gamma$ in the standard model. We show that the decay branching ratios of $Br(B\to \mathbf{B}{\bar{\mathbf{B}}}^{\prime }\gamma )$ are $O(10^{-7})$, which are larger than the estimated values of $O(10^{-9})$ induced from inner bremsstrahlung effects of the corresponding two-body modes. In particular, we find that $Br(B^{-}\to \Lambda \bar{p}\gamma )$ is around $1\times 10^{-6}$, which is close to the pole model estimation but smaller than the experimental measurement from BELLE.

11 pages, 2 figures, Revtex4, new fitting is included

References in corpus (6)

• Measurements of Charmless Hadronic Two-Body B Meson Decays and the Ratio cal B(B--> DK)/ cal B(B--> Dπ)
• Observation of B+ -> p pbar pi+, B0 -> p pbar K0, and B+ -> p pbar K*+
• Observation of B+ to Lambda Lambdabar K+
• Observation of B0 to p Lambdabar pi-
• T-violating triple product asymmetries in Lambda_b --> Lambda pi pi decay
• Search for Baryons in the Radiative Penguin Decay b--> s gamma

Cited by in corpus (16)

• The Physics of the B Factories
• Study of B+ to p Lambdabar gamma, p Lambdabar pi0 and B0 to p Lambdabar pi-
• Charmful Three-body Baryonic B decays
• Charmless Hadronic B-Meson Decays
• Angular distributions in three-body baryonic B decays
• Exclusive Baryonic B Decays Circa 2005
• Study of $B\to \Lambda \bar{\Lambda }K$ and $B\to \Lambda \bar{\Lambda }\pi$
• Charmless Two-body Baryonic $B_{u,d,s}$ Decays Revisited
• Study of $B\to p\bar{p}{K}^{\ast }$ and $B\to p\bar{p}\rho$
• Identifying Glueball at 3.02 GeV in Baryonic $B$ Decays
• Penguin-induced Radiative Baryonic B Decays Revisited
• Observation of B+ to p Lambdabar pi+ pi- at Belle
• Determination of Nucleon Form factors from Baryonic B Decays
• Determination of Spin-parity Quantum Numbers for the Narrow Structure Near the $p\bar{\Lambda }$ Threshold in $e^{+}{e}^{-}\to p{K}^{-}\bar{\Lambda }+c.c.$
• Status of baryonic B decays
• Semileptonic baryonic $B$ decays