R(D∗), |Vcb|, and the Heavy Quark Symmetry relations between form factors

By D. Bigi, Paolo Gambino, S. Schacht. Journal of High Energy Physics, 2017

229 citations recorded by the source corpus.

Stringent relations between the B(∗) → D(∗) form factors exist in the heavy quark limit and the leading symmetry breaking corrections are known. We reconsider their uncertainty and role in the analysis of recent Belle data for B → D(∗)ℓν with model-independent parametrizations and in the related prediction of R(D(∗)). We find |Vcb| = 41.5(1.3) 10−3 and |Vcb| = 40.6(− 1.3+ 1.2) 10−3 using input from Light Cone Sum Rules, and R(D∗) = 0.260(8).

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/9bce667948e9717ad7400a3bba09cde013434973

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Citations in the corpus

• Combined explanations of the b→sμ+μ− and b→cτ−ν¯ anomalies: A general model analysis (2018, methodology): “Following the measurements of RD(∗) , updated studies of the SM predictions were performed [23, 24].”