论文标题
关于高能量的DRELL-YAN测量的W&Y解释
On the W&Y interpretation of high-energy Drell-Yan measurements
论文作者
论文摘要
高能中性和带电的DRELL - YAN差异横截面测量值是夸克 - 莱普顿接触相互作用的强大探针,产生与能量的生长效应。本文在QCD的临时领先顺序上提供了理论上的预测,并在单层精度上包括一环校正。这些预测是从SM Monte Carlo模拟通过分析重新加权获得的。这消除了对新物理参数空间进行扫描的需求,从而使所有相关相互作用的全局探索。此外,我们的策略会产生持续的淋浴事件,以直接比较新的物理学预测与数据,或者验证展开程序比横截面测量的基础。选择了与EW精度测试的W和Y参数相关的两个特别相关的相互作用,以进行插图。提出了针对LHC和HL-LHC测量值的灵敏度的投影。量化了对几种不确定性来源灵敏度的影响。
High-energy neutral and charged Drell--Yan differential cross-section measurements are powerful probes of quark-lepton contact interactions that produce growing-with-energy effects. This paper provides theoretical predictions of the new physics effects at the Next-to-Leading order in QCD and including one-loop EW corrections at the single-logarithm accuracy. The predictions are obtained from SM Monte Carlo simulations through analytic reweighting. This eliminates the need of performing a scan on the new physics parameter space, enabling the global exploration of all the relevant interactions. Furthermore, our strategy produces consistently showered events to be employed for a direct comparison of the new physics predictions with the data, or to validate the unfolding procedure than underlies the cross-section measurements. Two particularly relevant interactions, associated with the W and Y parameters of EW precision tests, are selected for illustration. Projections are presented for the sensitivity of the LHC and of the HL-LHC measurements. The impact on the sensitivity of several sources of uncertainties is quantified.