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arXiv 2201.10343hep-ex
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用ATLAS实验寻找全强子末态的$W^{\prime} \to tb$衰变

Search for $W^{\prime} \to tb$ decays in the fully hadronic final state with the ATLAS experiment

Kuan-Yu Lin

摘要:

本文报道在$\sqrt{s}$ = 13 TeV的质子-质子碰撞中寻找一种新的重玻色子$W^{\prime}$.搜索的重点是衰变的$W^{\prime}$的强子顶夸克和底夸克,使用完整的运行2数据集的ATLAS探测器。顶夸克的强子衰变是用基于DNN的增强对象技术来识别的。主要背景是由一个数据驱动的方法与小系统的不确定性。结果是作为上限的生产截面倍衰变分支比的$W^{\prime}$玻色子与右手耦合,衰减到一个顶夸克和一个底夸克,几个$W^{\prime}$质量之间的1.5至5 TeV。

英文摘要:

A search for a new heavy boson $W^{\prime}$ in proton-proton collisions at $\sqrt{s}$ = 13 TeV is presented. The search focuses on the decay of the $W^{\prime}$ to a hadronic top quark and a bottom quark, using the full Run 2 dataset of the ATLAS detector. The hadronic decay of the top quark is identified using DNN-based boosted-object techniques. The dominant background is obtained by a data-driven method with small systematic uncertainties. The results are presented as upper limits on the production cross-section times decay branching ratio for the $W^{\prime}$ boson with right-handed couplings that decays to a top quark and a bottom quark, for several $W^{\prime}$ masses between 1.5 to 5 TeV.

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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