Measurements of W/Z production with the ATLAS detector

被引：0
作者：
Koeneke, Karsten [1 ]
机构：
[1] CERN, CH-1211 Geneva 23, Switzerland
来源：
11TH CONFERENCE ON THE INTERSECTIONS OF PARTICLE AND NUCLEAR PHYSICS (CIPANP 2012) | 2013年 / 1560卷
关键词：
LHC; ATLAS; W boson; Z boson; tau lepton; differential cross sections; polarizations; parton density function;
D O I：
10.1063/1.4826773
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
W and Z boson production have been measured in the electron, muon and tau decay channels at the LHC with the ATLAS detector. Total and differential cross sections, defined in terms of the decay lepton kinematics, have been measured as a function of rapidity and transverse momentum. Ratios of the cross sections demonstrate sensitivity to lepton universality. The kinematic distributions constrain parton densities and QCD calculations, including resummations of soft gluon radiation and the matching of NLO matrix elements (or high multiplicity tree-level matrix elements) to parton shower approximations. The polarization of W bosons is also measured, as, for the first time, is the polarization of the tau lepton in W -> tau nu decays.
引用
收藏
页码：274 / 278
页数：5
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