论文标题
矢量样瘦素及其对撞机信号的有效现场理论
Effective field theory for vector-like leptons and its collider signals
论文作者
论文摘要
我们认为，在具有高度的模型中。例如在复合希格斯模型或标准模型（SM）的量规扩展中，可能在相对较大的$ \ sqrt {s} $区域中产生类似矢量的瘦素。同样，它们可以轻松地腐烂到不包含SM仪表玻色子的最终状态。这与在LHC上搜索这些新粒子的拓扑形成对比。采用有效的现场理论方法，我们表明必须使用搜索激发瘦素的搜索来测试这种情况。我们在维度六的所有相关相互作用上得出界限；最受限的是$ 0.05 $ tev $^{ - 2} $。我们构建了新的可观察物，以改善当前分析并研究对SM的所有单场紫外线完成的影响，并用类似矢量的Lepton延伸，这可以由有效的田间理论在LHC的当前和高光度阶段捕获。
We argue that in models with several high scales; e.g. in composite Higgs models or in gauge extensions of the Standard Model (SM), vector-like leptons can be likely produced in a relatively large $\sqrt{s}$ region of the phase space. Likewise, they can easily decay into final states not containing SM gauge bosons. This contrasts with the topology in which these new particles are being searched for at the LHC. Adopting an effective field theory approach, we show that searches for excited leptons must be used instead to test this scenario. We derive bounds on all the relevant interactions of dimension six; the most constrained ones being of about $0.05$ TeV$^{-2}$. We build new observables to improve current analyses and study the impact on all single-field UV completions of the SM extended with a vector-like lepton that can be captured by the effective field theory at tree level, in the current and in the high-luminosity phase of the LHC.
