AI 中文总结
CMS合作组利用138 fb⁻¹数据，对13 TeV质子-质子碰撞中轻子末态矢量玻色子散射的多道测量进行统计组合，结果与标准模型一致，还实现了电荷分离测量以提升电荷不对称性灵敏度。
AI 中文摘要
本文对质心系能量为13 TeV的质子-质子碰撞中的矢量玻色子散射测量进行了统计组合分析。该分析基于2016年至2018年间CMS探测器采集的对应积分亮度为138 fb⁻¹的数据集。选择的事例包含两个矢量玻色子，其中至少一个发生轻子衰变，还至少有两个额外的高不变质量且大赝快度间隔的喷注。提取了同号WW、异号WW以及WZ和ZZ道的信号率，并与标准模型预测值进行对比。该组合通过在统一框架内同时约束所有道，提供了矢量玻色子散射的全局视图，其灵敏度优于单独输入的结果，所有结果均与标准模型预测一致。此外，还开展了电荷分离测量，按电荷区分W玻色子，以提升对产生电荷不对称性的灵敏度。
英文摘要
A statistical combination of vector boson scattering measurements in proton-proton collisions at $\sqrt{s}$ = 13 TeV is presented. The analysis is based on a dataset corresponding to an integrated luminosity of 138 fb$^{-1}$, collected with the CMS detector in 2016$-$2018. Events are selected to contain two vector bosons, with at least one decaying leptonically, and at least two additional jets with a high invariant mass and a large pseudorapidity separation. Signal rates are extracted for same-sign WW, opposite-sign WW, as well as for WZ and ZZ channels, and are compared with the standard model predictions. The combination provides a global view of vector boson scattering by simultaneously constraining all channels in a coherent framework, improving sensitivity beyond individual inputs, with all results in agreement with the standard model predictions. In addition, a charge-separated measurement is performed in which W bosons are distinguished according to their electric charge, allowing sensitivity to the production charge asymmetry.
CommentsThis version has an updated author list. Submitted to Physics Letters B. All figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/SMP-24-013 (CMS Public Pages)
