Electroweak corrections to Wγ and Zγ production at the LHC

被引:0
作者
E. Accomando
A. Denner
C. Meier
机构
[1] Università di Torino,Dipartimento di Fisica Teorica
[2] Paul Scherrer Institut,Institute for Theoretical Physics
[3] Würenlingen und Villigen,undefined
[4] University of Zürich,undefined
来源
The European Physical Journal C - Particles and Fields | 2006年 / 47卷
关键词
Transverse Momentum; Electroweak Correction; Anomalous Coupling; Virtual Correction; Partonic Cross Section;
D O I
暂无
中图分类号
学科分类号
摘要
We have calculated the electroweak \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$\mathrm{\mathcal{O}}(\alpha)$\end{document} corrections to the processes \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$pp\to{Z}\gamma+X\to\nu_l\overline{\nu}_l\gamma+X$\end{document}, \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$pp\to{Z}\gamma+X\to{l}\overline{l}\gamma+ X$\end{document}, and \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$pp\to{W}\gamma+X\to\nu_l\overline{l}\gamma+ X$\end{document} at the LHC, with l=e,μ and \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$\nu_l=\nu_{e},\nu_\mu,\nu_\tau$\end{document}. The virtual corrections are evaluated in leading-pole approximation, whereas the real corrections are taken into account exactly. These corrections are implemented into a Monte Carlo generator which includes both phase-space slicing and subtraction to deal with soft and collinear singularities. We present numerical results for total cross sections as well as for experimentally interesting distributions. Applying typical LHC cuts, the electroweak corrections are of the order of -5% for the total cross sections and exceed -20% for observables dominated by high center-of-mass energies of the partonic processes.
引用
收藏
页码:125 / 146
页数:21
相关论文
empty
未找到相关数据