标题： ATLAS EFT 在顶夸克区的结果 显示英文标题

标题： ATLAS EFT Results in the Top Quark Sector

摘要： 由于在 TeV 尺度上没有直接的新物理证据，可以通过诸如标准模型扩展（SMEFT）等有效场论（EFT）系统地探索偏离标准模型（SM）的现象。SMEFT 通过引入由威尔逊系数参数化的高维算符来扩展标准模型，提供了一个探测超出标准模型（BSM）效应的框架。本文贡献强调了三个利用 ATLAS 第二运行期数据集的最新分析，该数据集的质心能量为$\sqrt{s}$= 13 TeV，积分亮度为 140$\text{fb}^{-1}$。组合测量通过减少退化并收紧限制提高了对威尔逊系数的灵敏度，探索了 SMEFT 在顶夸克扇区的潜力。 显示英文摘要

摘要： With no direct evidence for new physics at the TeV scale, deviations from the Standard Model (SM) can be explored systematically through Effective Field Theories (EFTs) such as the Standard Model EFT (SMEFT). SMEFT extends the SM by introducing higher-dimensional operators parametrized by Wilson coefficients, offering a framework to probe beyond the SM (BSM) effects. This contribution highlights three recent analyses using the ATLAS Run-2 dataset at a center-of-mass energy of $\sqrt{s}$ = 13 TeV with an integrated luminosity of 140 $\text{fb}^{-1}$. Combined measurements improve the sensitivity to Wilson coefficients by reducing degeneracies and tightening constraints, exploring the potential of SMEFT in the top quark sector.