论文标题
在proton-proton碰撞中，搜索新的谐振在$ \ sqrt {s} $ = 13 tev的proton-proton碰撞中腐烂成顶级夸克对。
Search of new resonances decaying into top quark pairs in the lepton+jet final state in proton-proton collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
论文作者
论文摘要
提出了13个TEV Proton-Proton碰撞中产生的共振，并提出了腐烂成Quark对。在这项研究事件中，顶级衰减会产生单个孤立的带电的Lepton，缺少横向动量和与与大型强子碰撞器（LHC）ATLAS探测器记录的Hadroonic Top-Quark Decay兼容的JET活性。我们研究了与模型无关的方法中观察到的不变质谱，以寻求与标准模型（SM）背景期望的任何显着偏差。矩阵方法用于估计QCD多射流背景，该背景使用蒙特卡洛技术进行建模时具有较大的统计和系统不确定性。我们已经为特定基准模型进行了一般搜索：$ z^{'} _ {tc2} $ boson，kaluza-klein gluon和kaluza-klein graviton腐烂成顶级Quark对。考虑到所有不确定性，结果与SM期望一致。结果将提出结果的摘要，然后介绍关键发现的解释。
A search for resonances produced in 13 TeV proton-proton collisions and decaying into top-quark pairs is presented. In this study events where the top-quark decay produces a single isolated charged lepton, missing transverse momentum and jet activity compatible with a hadronic top-quark decay recorded with the ATLAS detector at the Large Hadron Collider (LHC) are considered. We investigate the observed invariant mass spectrum in a model-independent approach to seek for any significant deviation from the Standard Model (SM) background expectation. The Matrix Method was used to estimate the QCD multi-jet background, which has large statistical and systematic uncertainties when modelled using Monte Carlo techniques. We have performed general searches for new resonances for a specific benchmark models: $Z^{'}_{TC2}$ boson, Kaluza-Klein gluon and Kaluza-Klein graviton that decay into top-quark pairs. Taking into account all uncertainties, results are in line with SM expectations. A synopsis of the results followed by an explanation of key findings will be presented.
