In this review we present and discuss the determination of the magnitude of the Cabibbo–Kobayashi–Maskawa (CKM) matrix parameter V cb . The CKM matrix parametrizes the weak charged current interactions of quarks in the standard model (SM), and a precise determination of its elements has always been one of the most important targets of particle physics. The precise knowledge of the | V cb | value plays a pivotal role in testing the flavour sector of the SM and in the analyses of the unitarity of the CKM matrix. The SM does not predict the values of the CKM matrix elements, which have to be extracted by experimental data. Given the variety of channels that allow the extraction of | V cb |, different theoretical and experimental techniques are mustered for the | V cb | determination. The exertion towards precision represents not only a significant test of our theoretical procedures ...

中文翻译：

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Cabibbo–Kobayashi–Maskawa矩阵元素的测定 V cb |

在本文中，我们介绍和讨论Cabibbo–Kobayashi–Maskawa（CKM）矩阵参数V cb的大小确定。CKM矩阵参数化了标准模型（SM）中夸克的弱带电电流相互作用，对其元素的精确确定一直是粒子物理学的最重要目标之一。关于|的确切知识 V cb | 值在测试SM的风味部分以及分析CKM矩阵的统一性方面起着关键作用。SM不能预测必须通过实验数据提取的CKM矩阵元素的值。考虑到允许提取|的多种渠道，V cb |，为|提出了不同的理论和实验技术。V cb | 决心。