Tevatron Run II combination of the effective leptonic electroweak mixing angle
Tevatron Run II combination of the effective leptonic electroweak mixing angle
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Tevatron Run II 有效轻子电弱混合角的组合
DOI：
10.1103/physrevd.97.112007
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发表时间：
2018
影响因子：
5
通讯作者：
Aaltonen T
中科院分区：
文献类型：
--
作者：
Aaltonen T
通过中间玻色子产生的Drell-Yan轻子对的角分布具有不对称性，这与电弱力的自发对称破缺及其中性规范玻色子的混合有关。CDF和D 0实验利用从2001-2011年收集的完整Tevatron质子-反质子数据集中选择的电子和μ子对测量了有效轻子电弱混合参数，对应于积分光度。这些测量的结合产生了强子对撞机最精确的结果。这一结果与正负电子对撞机的最佳测量结果一致，并且在精度上接近。用Zfitter软件包推导出壳层上电弱混合参数或等效玻色子质量的标准模型。
Drell-Yan lepton pairs produced in the processthrough an intermediateboson have an asymmetry in their angular distribution related to the spontaneous symmetry breaking of the electroweak force and the associated mixing of its neutral gauge bosons. The CDF and D0 experiments have measured the effective-leptonic electroweak mixing parameterusing electron and muon pairs selected from the full Tevatron proton-antiproton data sets collected in 2001-2011, corresponding toof integrated luminosity. The combination of these measurements yields the most precise result from hadron colliders,. This result is consistent with, and approaches in precision, the best measurements from electron-positron colliders. The standard model inference of the on-shell electroweak mixing parameter, or equivalently the-boson mass, using thezfittersoftware package yieldsor equivalently,.