Inclusive determination of $|V_{cb}|$ at Belle

Raynette van Tonder

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arXiv · 2105.08001

Inclusive determination of $|V_{cb}|$ at Belle

Raynette van Tonder

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Abstract

We present the measurement of the first to fourth order moments of the four-momentum transfer squared, $q^{2}$, of inclusive $B \rightarrow X_{c} \ell \nu$ decays using the full Belle data set consisting of $711~\rm fb^{-1}$ of integrated luminosity at the $\Upsilon(4S)$ resonance for $\ell = e, \mu$. The measured moments are crucial experimental inputs for a novel, data-driven approach to determine inclusive $|V_{cb}|$, which we implement in order to extract a preliminary value of $|V_{cb}| \times 10^{3} = 41.7 \pm 1.2$.

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Raynette van Tonder. 2021-05-17. Inclusive determination of $|V_{cb}|$ at Belle. https://arxiv.org/abs/2105.08001

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