论文标题
LHCB的魅力混合和$ CP $违规的最新进展
Recent advances in charm mixing and $CP$ violation at LHCb
论文作者
论文摘要
在70年代在标准模型的诞生中扮演关键作用之后，对魅力物理学的研究在过去十年中进行了复兴，这是由魅力和$ b $工厂的大量精确度量触发的，以及CDF，尤其是LHCB实验。在本文中，我们总结了如何使用Charmed Hadron的独特现象学来测试标准模型，并回顾LHCB实验在该领域执行的最新测量结果。其中包括对$ CP $违规的历史性第一观察以及魅力的中性中性中性 - 梅森群众征本素质的非零质量差异，迄今为止最精确的确定其衰减宽度差异以及搜索时间相关的$ cp $违规行为，以达到$ 10^{-4} $ 10^{-4} $。这些结果挑战了我们对非驱动性强相互作用的理解，他们的解释要求对理论和实验方面进行进一步研究。 LHCB实验的即将进行的升级将在此任务中发挥主导作用。
After playing a pivotal role in the birth of the Standard Model in the 70's, the study of charm physics has undergone a revival during the last decade, triggered by a wealth of precision measurements from the charm and $B$ factories, and from the CDF and especially the LHCb experiments. In this article, we sum up how the unique phenomenology of charmed hadrons can be used to test the Standard Model and we review the latest measurements performed in this field by the LHCb experiment. These include the historic first observations of $CP$ violation and of a nonzero mass difference between the charmed neutral-meson mass eigenstates, the most precise determination of their decay-width difference to date, and a search for time-dependent $CP$ violation reaching the unprecedented precision of $10^{-4}$. These results challenge our comprehension of nonperturbative strong interactions, and their interpretation calls for further studies on both the theoretical and experimental sides. The upcoming upgrades of the LHCb experiment will play a leading role in this quest.
