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arXiv · 2204.06814

Unbinned Angular Analysis of $B\to D^*(D\pi)\ell \nu_\ell$ and $C_{V_R}$

Zhuo-Ran Huang·Emi Kou·Cai-Dian Lü·Ru-Ying Tang
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Abstract

A sensitivity study of the unbinned angular analysis of the $B\to D^*(D\pi)\ell \nu_\ell$ decay is presented. In the analysis, it is shown that the Wilson coefficient of the right-handed vector current, $C_{V_R}$, can be measured to precision of 2-4$\%$ using either the full set of normalised angular observables or the forward-backward asymmetry $A_{FB}$ of the charged lepton in 10 $w$ bins. Such angular measurements are independent of the $V_{cb}$ puzzle.

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Zhuo-Ran Huang, Emi Kou, Cai-Dian Lü, Ru-Ying Tang. 2022-04-14. Unbinned Angular Analysis of $B\to D^*(D\pi)\ell \nu_\ell$ and $C_{V_R}$. https://arxiv.org/abs/2204.06814

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