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

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

2002-07-14

arxiv.org/abs/hep-ph/0207170v1

Nucl.Phys.Proc.Suppl. 111 (2002) 270-272

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages, 2 figures, Proceedings of the Fifth KEK Topical Conference

Scientific paper

10.1016/S0920-5632(02)01718-8

We study semi-inclusive charmless decays $B \to \pi X$, where $X$ does not contain a charm (anti)quark. The mode $\bar B^0 \to \pi^- X$ turns out to be be particularly useful for determination of the CKM matrix element $|V_{ub}|$. We present the branching ratio (BR) of $\bar B^0 \to \pi^- X$ 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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