论文标题
通过Atlas实验搜索$ w^{\ prime} \ to tb $衰变
Search for $W^{\prime} \to tb$ decays in the fully hadronic final state with the ATLAS experiment
论文作者
论文摘要
在$ \ sqrt {s} $ = 13 tev中,搜索质子 - 普罗顿碰撞中的新的重玻色$ w^{\ prime} $。搜索使用ATLAS检测器的完整运行2个数据集,重点介绍了$ w^{\ prime} $对HADRONIC TOP夸克和底部夸克的衰减。使用基于DNN的Boost-Object技术鉴定出顶级夸克的辐射衰变。主要背景是通过具有小型系统不确定性的数据驱动方法获得的。结果表示为$ w^{\ prime} $玻色的生产横截面衰减分支比的上限,其右手耦合在顶部夸克和底部的夸克上,几个$ w^{\ prime} $质量在1.5至5 tev之间。
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.