在√s = 13 TeV时使用ATLAS探测器测量与两个喷注相关联的W玻色子的电弱产生
Measurements of the electroweak production of a $W$ boson in association with two jets at $\sqrt{s}=13\,\mathrm{TeV}$ with the ATLAS detector
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中文总结 AI 辅助
利用ATLAS探测器140 fb⁻¹的√s = 13 TeV质子-质子碰撞数据集，在特定基准区域测量与双喷注相关的W玻色子电弱产生，确定积分和微分截面，结果在有效场论下解释，对异常三规范玻色子耦合限制严格。
中文摘要 AI 辅助
利用大型强子对撞机上ATLAS探测器记录的140 fb⁻¹的√s = 13 TeV质子-质子碰撞数据集，对高双喷注不变质量下与两个喷注相关联的W玻色子的电弱产生进行测量。在通过矢量玻色子融合增强W玻色子产生的基准区域进行测量。该区域要求至少两个喷注、一个电子或一个μ子以及一个中微子（假设W轻子衰变）。除了积分产生截面，还确定了展开到粒子水平的微分截面，作为表征两个最高能量喷注角特性、W玻色子运动学以及最高能量喷注和带电轻子横向动量的可观测量的函数。结果在有效场论的背景下进行解释，对异常三规范玻色子耦合的限制是迄今为止扩展拉格朗日线性项中最严格的之一。
英文摘要
Measurements of the electroweak production of a $W$ boson in association with two jets at high dijet invariant mass are performed using a dataset from $140\,\mathrm{fb}^{-1}$ of $\sqrt{s}=13\,\mathrm{TeV}$ proton-proton collisions recorded by the ATLAS detector at the LHC. The measurements are made in a fiducial region where the $W$ boson's production via vector-boson fusion is enhanced. The fiducial region requires at least two jets, an electron or a muon, and a neutrino, assuming a leptonic $W$ decay. In addition to the integrated production cross-section, differential cross-sections unfolded to particle level are determined as functions of observables which characterise angular properties of the two highest-energy jets, the kinematics of the $W$ boson, and the transverse momenta of the highest-energy jet and the charged lepton. Results are interpreted in the context of an effective field theory, and the limits placed on anomalous triple-gauge-boson couplings are among the most stringent to date for linear terms of the extended Lagrangian.
