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arXiv 2101.01629hep-ex
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使用ATLAS探测器在$\sqrt{s}=13$ TeV上搜索具有一个孤立轻子、喷流和缺失横向动量的最终态的夸克和胶子

Search for squarks and gluinos in final states with one isolated lepton, jets, and missing transverse momentum at $\sqrt{s}=13$ TeV with the ATLAS detector

ATLAS Collaboration

摘要:

研究了胶子和夸克对的产生,结果表明,胶子和夸克对通过最轻的电荷对衰变到由两个$W$玻色子、最轻的中性伴子($\tildeχ^0_1$)和夸克组成的末态.该信号的特征是存在一个单电荷轻子($e^{\pm}$或$μ^{\pm}$),来自$W$玻色子衰变、喷流和缺失的横向动量。使用139 FB $^{-1}$的质子-质子碰撞数据进行分析,该数据在质量中心能量$\sqrt{s}=13$ TeV处由大型强子对撞机提供并由ATLAS实验记录。没有发现统计上显著超出标准模型预期的事件。对于轻$\tildeχ^0_1$,在95%的置信水平下排除了高达2.2 TeV(1.4 TeV)的胶子(夸克)质量。

英文摘要:

The results of a search for gluino and squark pair production with the pairs decaying via the lightest charginos into a final state consisting of two $W$ bosons, the lightest neutralinos ($\tildeχ^0_1$), and quarks, are presented. The signal is characterised by the presence of a single charged lepton ($e^{\pm}$ or $μ^{\pm}$) from a $W$ boson decay, jets, and missing transverse momentum. The analysis is performed using 139 fb$^{-1}$ of proton-proton collision data taken at a centre-of-mass energy $\sqrt{s}=13$ TeV delivered by the Large Hadron Collider and recorded by the ATLAS experiment. No statistically significant excess of events above the Standard Model expectation is found. Limits are set on the direct production of squarks and gluinos in simplified models. Masses of gluino (squark) up to 2.2 TeV (1.4 TeV) are excluded at 95% confidence level for a light $\tildeχ^0_1$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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