论文标题
在$ b \ rightarrowπk$衰减中探索新物理
Exploring New Physics in $B \rightarrow πK$ Decays
论文作者
论文摘要
B-Meson衰减在风味物理学中起着重要作用。 $ b \ rightarrowπk$衰减主要由QCD环图（企鹅）和新物理学可能输入的电动企鹅主导，对衰减振幅产生了重大影响。由于来自B因子的测量表明与标准模型图片的偏差，因此我们执行最新的分析，以探索CP不对称的相关性并获得更新的图片。我们提出了一种最佳确定参数的策略，该参数描述了电动企鹅效应并将其应用于当前数据，并利用了中性和带电的$ b \rightarrowπkπk$衰减。这种新方法可以在未来的Belle-II实验中充分利用，该实验希望回答以下问题：这些腐烂意味着新物理学吗？
B-meson decays play an important role in flavour physics. The $B \rightarrow πK$ decays are dominated by QCD loop diagrams (penguins) but also electroweak penguins, where New Physics may enter, have a significant impact on the decay amplitude. Since measurements from B-factories indicate deviations from the Standard Model picture, we perform a state-of-the-art analysis to explore the correlation of the CP asymmetries and to get an updated picture. We propose a strategy for the optimal determination of the parameters which describe electroweak penguin effects and apply it to current data, utilising both neutral and charged $B \rightarrow πK$ decays. This new method can be fully exploited at the future Belle-II experiment, which will hopefully answer the question: Do these decays imply New Physics?
