arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1107.4544hep-th
收藏

树能级振幅与对偶超共形对称性

Tree-level amplitudes and dual superconformal symmetry

J. M. Drummond

摘要:

我们回顾了规范理论散射振幅在树级的结构,并描述了如何找到一个紧凑的表达式,它编码的所有树级振幅在最大超对称N=4的理论。振幅的表达式揭示了对偶超共形对称性。我们描述了如何将这些想法可以扩展到领先的奇点和环路被积函数的平面理论,并讨论了在高维规范理论的对偶共形对称的外观。这篇文章是《物理学报A》专刊“规范理论中的散射振幅“的特邀评论。

英文摘要:

We review the structure of gauge theory scattering amplitudes at tree level and describe how a compact expression can be found which encodes all the tree-level amplitudes in the maximally supersymmetric N=4 theory. The expressions for the amplitudes reveal a dual superconformal symmetry. We describe how these ideas can be extended to leading singularities and the loop integrand in the planar theory and discuss the appearance of dual conformal symmetry in higher-dimensional gauge theories. This article is an invited review for a special issue of Journal of Physics A devoted to "Scattering Amplitudes in Gauge Theories".

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑