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The $q^2$ moments in inclusive semileptonic $B$ decays

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arxiv 2310.20324 v2 pith:7H2N3IOW submitted 2023-10-31 hep-ph hep-ex

classification hep-phhep-ex
keywords momentsbelledecaysinclusivesemileptonicaddingalphabeta
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We compute the first moments of the $q^2$ distribution in inclusive semileptonic $B$ decays as functions of the lower cut on $q^2$, confirming a number of results given in the literature and adding the $O(\alpha_s^2\beta_0)$ BLM contributions. We then include the $q^2$-moments recently measured by Belle and Belle II in a global fit to the moments. The new data are compatible with the other measurements and slightly decrease the uncertainty on the nonperturbative parameters and on $|V_{cb}|$. Our updated value is $|V_{cb}|=(41.97\pm 0.48)\times 10^{-3}$.

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Cited by 7 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

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