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Measurement of $|V_{ub}|$ in semi-inclusive charmless $B \to πX$ decays

C. S. Kim·Jake Lee·Sechul Oh
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Abstract

We study semi-inclusive charmless decays $B \to πX$, where $X$ does not contain a charm (anti)quark. The mode $\bar B^0 \to π^- X$ turns out to be be particularly useful for determination of the CKM matrix element $|V_{ub}|$. We present the branching ratio (BR) of $\bar B^0 \to π^- X$ as a function of $|V_{ub}|$, with an estimation of possible uncertainty. The BR is expected to be an order of $10^{-4}$.

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C. S. Kim, Jake Lee, Sechul Oh. 2002-07-14. Measurement of $|V_{ub}|$ in semi-inclusive charmless $B \to πX$ decays. https://doi.org/10.1016/s0920-5632(02)01718-8

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