晶格^ $ B \ D{(*)}形式因素,美元$ R (D ^{(*)})$, 和$ | V_ {cb} | $

A. Lytle
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引用次数: 2

摘要

我讨论了$B \to D^{(*)} \ell \nu$形状因子的晶格计算的最新进展,这对于标准模型(SM)中$|V_{cb}|$的精度确定以及在可观测物$R(D^{(*)})$中测试轻子味普适的SM期望非常重要。我还讨论了相关的$b \to c$半光子衰减$B_s \to D_s^{(*)} \ell \nu$和$B_c \to J/\psi \, \ell \nu$的计算进展,目前在大型强子对撞机上可以通过实验获得。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Lattice $B \to D^{(*)}$ form factors, $R(D^{(*)})$, and $|V_{cb}|$
I discuss recent progress in lattice calculations of $B \to D^{(*)} \ell \nu$ form factors, important for the precision determination of $|V_{cb}|$ in the Standard Model (SM), and for testing SM expectations of lepton flavor universality in observables $R(D^{(*)})$. I also discuss progress in calculations of the related $b \to c$ semileptonic decays $B_s \to D_s^{(*)} \ell \nu$ and $B_c \to J/\psi \, \ell \nu$ now experimentally accessible at the LHC.
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