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Revisiting $B\to D \ell \nu$

High Energy Physics - Phenomenology 2016-11-15 v2 High Energy Physics - Experiment
Authors: Dante Bigi , Paolo Gambino
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Abstract

We re-examine the determination of ∣Vcb∣|V_{cb}| from B→DℓνB\to D \ell \nu in view of recent experimental and theoretical progress, discussing the parameterization of the form factors and studying the role played by the unitarity constraints. Our fit to experimental and lattice results for B→DℓνB\to D \ell \nu gives ∣Vcb∣=40.49(97) 10−3|V_{cb}|=40.49(97)\ 10^{-3} and to R(D)=0.299(3)R(D)= 0.299(3).

Cite

@article{arxiv.1606.08030,
  title  = {Revisiting $B\to D \ell \nu$},
  author = {Dante Bigi and Paolo Gambino},
  journal= {arXiv preprint arXiv:1606.08030},
  year   = {2016}
}

Comments

19 pages, 2 figures; v2: BCL fits, various clarifications and refs added

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R2 v1 2026-06-22T14:34:26.152Z