论文标题
使用139 fb $^{ - 1} $ $ pp $ collision Data在$ \ sqrt {s} = 13 $ tev带Atlas detector
Search for top squarks in events with a Higgs or $Z$ boson using 139 fb$^{-1}$ of $pp$ collision data at $\sqrt{s}=13$ TeV with the ATLAS detector
论文作者
论文摘要
本文在缺少横向动量的事件中搜索了直接顶级巨型对生产的搜索，还有一对与标准型号Higgs玻色子衰减一致的喷气式飞机，或$ B $ QUARKS或同一Flavour Enterign diLepton对，具有与$ z $ boson一致的不变性质量。分析是使用$ \ sqrt {s} = 13 $ tev在LHC Run-2期间与Atlas检测器收集的质子 - 普罗顿碰撞数据进行的，对应于139 fb $^{ - 1} $的集成光度。在标准模型预测上方的数据中未观察到过多。结果在简化的模型中解释为直接生产一对较轻的顶部壁垒（$ \ \ tilde {t} _1 $）或更重的顶级野蛮人（$ \ tilde {t} _2 $），不包括95％的置信度$ \ tilde $ \ tilde {t} $ _1 $和$ \ tilde and tilde and tilde and tilde和87 GEV分别。
This paper presents a search for direct top squark pair production in events with missing transverse momentum plus either a pair of jets consistent with Standard Model Higgs boson decay into $b$-quarks or a same-flavour opposite-sign dilepton pair with an invariant mass consistent with a $Z$ boson. The analysis is performed using the proton-proton collision data at $\sqrt{s}=13$ TeV collected with the ATLAS detector during the LHC Run-2, corresponding to an integrated luminosity of 139 fb$^{-1}$. No excess is observed in the data above the Standard Model predictions. The results are interpreted in simplified models featuring direct production of pairs of either the lighter top squark ($\tilde{t}_1$) or the heavier top squark ($\tilde{t}_2$), excluding at 95% confidence level $\tilde{t}_1$ and $\tilde{t}_2$ masses up to about 1220 and 875 GeV, respectively.
