Elsevier

Physics Letters B

Volume 704, Issue 5, 25 October 2011, Pages 495-498
Physics Letters B

Semileptonic Bpp¯ν¯ decays

https://doi.org/10.1016/j.physletb.2011.09.065Get rights and content
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Abstract

We study the four-body exclusive semileptonic baryonic B¯ decays of Bpp¯ν¯ (=e,μ,τ) in the standard model. We find that their decay branching ratios are about (1.0,1.0,0.5)×104, respectively. In particular, the electron mode is close to the corresponding CLEOʼs upper limit of 5.2×103, while all results are about one or two orders of magnitude larger than the previous estimated values for the inclusive modes of B¯BB¯ν¯. Clearly, both B-factories of Belle and BaBar should be able to observe these exclusive four-body modes.

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