对奇异特征敏感的触发级航迹重建优化
Optimizing Trigger-Level Track Reconstruction for Sensitivity to Exotic Signatures
摘要：
许多令人信服的超越标准模型的情景预测信号，导致非常规的带电粒子轨迹。不寻常的轨迹是事件最显著的特征，这对大型强子对撞机（LHC）的实验构成了重大挑战，特别是对于触发器。本文介绍了一个基于跟踪的触发器的一组代表性的长寿命和非常规的签名在即将到来的高亮度LHC的研究，以及由此产生的建议的目标参数的基于硬件的跟踪系统。研究的方案包括大的多重性的低动量轨道产生的软unclustered能量模式模型，位移轻子和异常提示轨道预测的超对称模型与长寿的状态，和位移强子预测的希格斯门的情况下，长寿的标量。
英文摘要：
Many compelling beyond the Standard Model scenarios predict signals that result in unconventional charged particle trajectories. Signatures for which unusual tracks are the most conspicuous feature of the event pose significant challenges for experiments at the Large Hadron Collider (LHC), particularly for the trigger. This article presents a study of track-based triggers for a representative set of long-lived and unconventional signatures at the upcoming High Luminosity LHC, as well as resulting recommendations for the target parameters of a hardware-based tracking system. Scenarios studied include large multiplicities of low momentum tracks produced in a soft-unclustered-energy-pattern model, displaced leptons and anomalous prompt tracks predicted in a Supersymmetry model with long-lived staus, and displaced hadrons predicted in a Higgs portal scenario with long-lived scalars.
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