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arXiv 1010.0362hep-ex
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ATLAS中早期顶反顶共振搜索的前景

Prospects for early top anti-top resonance searches in ATLAS

Bertrand Chapleau

摘要:

在大型强子对撞机的顶反顶事件中寻找新物理学的特征需要有效地重建具有宽范围横动量的顶夸克。三个新的重建计划,以处理各种各样的顶部衰变拓扑结构。轻子+喷流的最终状态的性能进行了评估,使用详细的模拟信号和背景过程。与以前的ATLAS研究相比,一个大大提高了重建效率被发现在一个大的顶部对顶部不变的质量范围。因此,即使在实验的最早阶段,ATLAS也有望大大扩展现有搜索的大规模范围。

英文摘要:

Searches for signatures of new physics in top anti-top events at the LHC require efficient reconstruction of top quarks with a broad range of transverse momenta. Three new reconstruction schemes are developed to deal with the large variety of top decay topologies. Their performance on the lepton + jets final state is evaluated using a detailed simulation of signal and background processes. Compared to previous ATLAS studies, a much improved reconstruction efficiency is found over a large top anti-top invariant mass range. As a consequence, even in the earliest phase of the experiment, ATLAS is expected to significantly extend the mass reach of existing searches.

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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