论文标题
第一行CKM Unitarity
First row CKM unitarity
论文作者
论文摘要
在本演讲中，我简要介绍了第一行CKM Unitarity的精确测试，主要集中在$ v_ {ud} $和$ v_ {us} $中，从pion，kaon，kaon，netron和Superforeed核β衰减中提取。我将讨论这些过程的几种重要标准模型理论输入的当前状态，以及对未来改进的需求。
In this talk I briefly review the precision test of the first row CKM unitarity, focusing mainly on $V_{ud}$ and $V_{us}$ extracted from pion, kaon, neutron and superallowed nuclear beta decays. I will discuss the current status of several important Standard Model theory inputs to these processes, and the need for future improvements.
