VBS和双玻色子WW在LHC上对6维EFT算子的灵敏度研究
A sensitivity study of VBS and diboson WW to dimension-6 EFT operators at the LHC
摘要：
我们提出了一个部分水平的研究在大型强子对撞机的矢量玻色子对的电弱生产，建立在标准模型有效场论（SMEFT）的一组六维运营商的敏感性。不同的最终状态统计组合，我们讨论了如何正交性和相互依存的不同的分析必须考虑到获得最严格的约束。我们的研究的主要新颖之处是列入SMEFT效应在非共振图和不可约QCD背景，和一个详尽的模板分析的最佳观测值为每个运营商和过程考虑。我们还首次评估了矢量玻色子散射搜索在半轻子最终状态的灵敏度。
英文摘要：
We present a parton-level study of electro-weak production of vector-boson pairs at the Large Hadron Collider, establishing the sensitivity to a set of dimension-six operators in the Standard Model Effective Field Theory (SMEFT). Different final states are statistically combined, and we discuss how the orthogonality and interdependence of different analyses must be considered to obtain the most stringent constraints. The main novelties of our study are the inclusion of SMEFT effects in non-resonant diagrams and in irreducible QCD backgrounds, and an exhaustive template analysis of optimal observables for each operator and process considered. We also assess for the first time the sensitivity of vector-boson-scattering searches in semileptonic final states.
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