论文标题
在$ e^+e^ - $ colliders中追求$ cp $违反$ cp $
Pursuit of $CP$ violation in hyperon decays at $e^+e^-$ colliders
论文作者
论文摘要
我们介绍了关于$ CP $违反Hyperon衰减的简洁概述，包括过去，现在和未来搜索它的努力。我们特别强调了BESIII实验的最新结果，使用了由$ e^+e^ - $ nihihitation形成的charmonium共振产生的一对量子符合的超子和抗蛋白。这些超子对的随后的非法律衰减允许同时确定衰减中违反$ cp $的各种参数。我们将报告的数据与粒子物理标准模型中$ CP $不对称的相应电流预测进行了比较。此外，我们探讨了这些不对称的数量可能会通过标准模型以外的新物理学增强。我们还简要评论了拟议的超级tau-Charm工厂在未来对Hyperon $ CP $抗事的任务中的重要性。
We present a concise overview on $CP$ violation in hyperon decays, including past, present, and future efforts to search for it. We highlight in particular the most recent results of the BESIII experiment using a quantum-entangled pair of hyperon and antihyperon produced by a charmonium resonance formed in $e^+e^-$ annihilation. The subsequent nonleptonic decays of these hyperon pairs allow for the simultaneous determination of various parameters pertaining to $CP$ violation in the decays. We compare the reported data with the corresponding current predictions for $CP$ asymmetries within the standard model of particle physics. Moreover, we touch on how much these asymmetries might be enhanced by possible new physics beyond the standard model. We also comment briefly on the importance of the proposed super tau-charm factories in future quests for hyperon $CP$-violation.
