论文标题
感觉到希格斯级联在记忆中衰落
Sensing Higgs cascade decays through memory
论文作者
论文摘要
除了具有HIGGS扇区扩展的标准模型方案外，通常还可以预测新的共振，这些共振可以经历一系列级联衰变以检测可检测的标准模型颗粒。一方面，如果要进行新的物理发现，对这种签名的敏感性将有助于全面重建扩展的希格斯潜力。另一方面，这样的级联衰变可能是主要的衰减渠道，因此首先是实现新物理发现的最佳动机签名。在这项工作中，我们展示了如何在不存在这样的信息的背景区分信号时利用级联衰减现象学中编码的长短期记忆。同时，我们证明了理论上动机的方案，与更标准的分析相比，这种方法提供了提高的灵敏度，其中仅包括有关信号最终状态运动学的信息。
Beyond the Standard Model scenarios with extensions of the Higgs sector typically predict new resonances that can undergo a series of cascade decays to detectable Standard Model particles. On one hand, sensitivity to such signatures will contribute to the full reconstruction of the extended Higgs potential if a new physics discovery will be made. On the other hand, such cascade decays could be dominant decay channels, thus being potentially the best motivated signatures to achieve a new physics discovery in the first place. In this work, we show how the long short-term memory that is encoded in the cascade decays' phenomenology can be exploited in discriminating the signal from the background, where no such information is present. In parallel, we demonstrate for theoretically motivated scenarios that such an approach provides improved sensitivity compared to more standard analyses, where only information about the signal's final state kinematics is included.
