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arXiv · hep-ph/9605256

A Fresh Look at the B Semileptonic Branching Ratio and Beauty Lifetimes

Matthias Neubert
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Abstract

We discuss two problems in the theory of heavy-quark decays: an understanding of the semileptonic branching ratio of $B$ mesons, and of the lifetime ratio $τ(Λ_b)/τ(B^0)$. We also present a model-independent study of spectator contributions to the lifetimes of beauty hadrons.

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Matthias Neubert. 1996-05-08. A Fresh Look at the B Semileptonic Branching Ratio and Beauty Lifetimes. https://arxiv.org/abs/hep-ph/9605256

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