论文标题
$ b $衰减中的异常和黑暗循环中的muon $ g-2 $
Anomalies in $B$ Decays and Muon $g-2$ from Dark Loops
论文作者
论文摘要
我们探索了一类模型，可以为最近观察到的Lepton风味普遍性的证据提供共同的起源，以$ b \至s l^+ l^ - $衰减，暗物质（DM）问题和长期存在的MUON $（G-2）$异常。特别是，$ b $介子衰减中的两个异常，而muon $（g-2）$都可以通过带有DM候选人的额外的一环图来解释。我们首先根据新字段的量子数对几个简单模型进行分类。然后，我们专注于一个特定的有前途的模型，并对DM和风味物理学进行详细研究。对相关参数空间的随机扫描表明，确实存在一个很大的参数空间，可以同时解释三种新物理现象，同时满足所有其他风味和DM约束。最后，我们讨论了大型强子对撞机的一些新物理学特征。
We explore a class of models which can provide a common origin for the recently observed evidence for lepton flavor universality violation in $b \to s l^+ l^- $ decays, the dark matter (DM) problem and the long-standing muon $(g-2)$ anomaly. In particular, both anomalies in the $B$ meson decays and the muon $(g-2)$ can be explained by the additional one-loop diagrams with DM candidates. We first classify several simple models according to the new fields' quantum numbers. We then focus on a specific promising model and perform a detailed study of both DM and flavor physics. A random scan over the relevant parameter space reveals that there is indeed a large parameter space which can explain the three new physics phenomena simultaneously, while satisfying all other flavor and DM constraints. Finally, we discuss some of the possible new physics signatures at the Large Hadron Collider.
