论文标题
在SMEFT的LHC上完成四个顶级夸克生产的完整研究
Complete study of four top quark production at the LHC in the SMEFT
论文作者
论文摘要
我们在标准模型有效场理论（SMEFT）中介绍了LHC的四个顶级夸克产生的研究。该分析是在树级上进行的，包括混合QCD-EW耦合横截面扩展中的所有术语以及所有相关的尺寸SMEFT运算符。我们发现几种案例正式转向式术语会产生重大贡献。此外，使用简化的卡方拟合，我们获得了SMEFT Wilson系数（WC）的限制，包括不同的对撞机设置，FCC-HH和HL-LHC。通过后者，我们还评估了在拟合中包含差异信息的重要性。
We present a study of four top quark production at the LHC in the Standard Model Effective Field Theory (SMEFT). The analysis is performed at the tree-level, including all terms from the mixed QCD-EW-coupling cross-section expansion and all the relevant dimension-six SMEFT operators. We find several cases in which formally subleading terms give rise to significant contributions. Moreover, we obtain limits on the SMEFT Wilson coefficients (WCs), including different collider setups, FCC-hh and HL-LHC, using a simplified chi-square fit. Through the latter, we also assessed the importance of including differential information in the fit.
