论文标题
$ b \ to d^{（\ ast）} \ellν$在非零后坐力
$B\to D^{(\ast)}\ellν$ at non-zero recoil
论文作者
论文摘要
$ b $异常在超越标准模型（BSM）物理搜索中起着重要作用。特别是，ckm矩阵元素$ | v_ {cb} | $与$ r（d）$ - $ r（d）$ - $ r（d^\ ast）$平面中的当前紧张局势之间的包含性和独家确定之间的长期紧张关系使$ b \ to d^{（\ ast）带来了$ b \ to^{（\ ast）} $ semeles。 $ b \ to d \ellν$的现有晶格-QCD计算在非零后坐力的表征是符合$ b \ to d^\ ast \ ast \ellν$ Channel的最新发展。在这篇评论中，我讨论了$ b \ d^{（\ ast）} \ellν$的晶格计算中的最新进展，以及这些结果对高精度确定的含义，对$ | v_ {cb} | $和Lepton Floatival（LFU）rative（lfu）ratios（lfu）ratios（lfu）ratios $ r（d^{d^{（d^ast））$。
$B$ anomalies play a prominent role in Beyond the Standard Model (BSM) physics searches. In particular, the long standing tension between the inclusive and the exclusive determinations of the CKM matrix element $|V_{cb}|$ and the current tensions in the $R(D)$--$R(D^\ast)$ plane between theory and experiment have brought the $B\to D^{(\ast)}\ellν$ semileptonic processes to the spotlight. Existing lattice-QCD calculations of the $B\to D\ellν$ form factors at non-zero recoil are being complemented with very recent developments in the $B\to D^\ast\ellν$ channel. In this review I discuss recent progress in lattice calculations of $B\to D^{(\ast)}\ellν$, as well as the implications of these results for high precision determinations of $|V_{cb}|$ and the Lepton Flavor Universality (LFU) ratios $R(D^{(\ast)})$.
