论文标题
在近代领先的QCD下，LHC处的矢量 - 玻色子散射中的双thoton产生
Diphoton production in vector-boson scattering at the LHC at next-to-leading order QCD
论文作者
论文摘要
在本文中，我们在标准模型（SM）中通过向量玻色子散射（SM）在近代领先顺序（NLO）QCD中介绍了光子对产生的结果，并在有效的现场理论框架中通过Bosonic dimension-6和8运算符具有异常量规耦合效应。我们观察到，与两个Electroweak（EW）矢量玻色子产生的其他过程相比，与两种喷气式相关，需要更多的独家切割才能抑制SM QCD诱导的背景通道。正如预期的那样，NLO QCD校正大大减少了量表的不确定性。使用良好动力的动力学比例选择，我们为EW诱导的过程找到了适度的$ K $ factor，而QCD诱导的通道会获得更大的校正。此外，我们观察到，对于第二硬喷射，应用$ δϕ_ {j_2γ_1}^{\ text {cut}} <2.5 $，最难的光子有助于提高信号意义并减少较高QCD更正的影响。
In this paper, we present results at next-to-leading order (NLO) QCD for photon pair production in association with two jets via vector boson scattering within the Standard Model (SM), and also in an effective field theory framework with anomalous gauge coupling effects via bosonic dimension-6 and 8 operators. We observe that, compared to other processes in the class of two electroweak (EW) vector boson production in association with two jets, more exclusive cuts are needed in order to suppress the SM QCD-induced background channel. As expected, the NLO QCD corrections reduce the scale uncertainties considerably. Using a well-motivated dynamical scale choice, we find moderate $K$-factors for the EW-induced process while the QCD-induced channel receives much larger corrections. Furthermore, we observe that applying a cut of $Δϕ_{j_2 γ_1}^{\text{cut}} < 2.5$ for the second hardest jet and the hardest photon helps to increase the signal significance and reduces the impact of higher-order QCD corrections.
