English

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

High Energy Physics - Experiment 2021-05-18 v1

Abstract

We present the measurement of the first to fourth order moments of the four-momentum transfer squared, q2q^{2}, of inclusive BXcνB \rightarrow X_{c} \ell \nu decays using the full Belle data set consisting of 711 fb1711~\rm fb^{-1} of integrated luminosity at the Υ(4S)\Upsilon(4S) resonance for =e,μ\ell = e, \mu. The measured moments are crucial experimental inputs for a novel, data-driven approach to determine inclusive Vcb|V_{cb}|, which we implement in order to extract a preliminary value of Vcb×103=41.7±1.2|V_{cb}| \times 10^{3} = 41.7 \pm 1.2.

Keywords

Cite

@article{arxiv.2105.08001,
  title  = {Inclusive determination of $|V_{cb}|$ at Belle},
  author = {Raynette van Tonder},
  journal= {arXiv preprint arXiv:2105.08001},
  year   = {2021}
}

Comments

Contribution to the 2021 EW session of the 55th Rencontres de Moriond