来自光锥行动的软因子和交互顶点

IF 5.6 3区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY

Fortschritte Der Physik-Progress of Physics Pub Date : 2024-02-04 DOI:10.1002/prop.202300182

Sudarshan Ananth, Chetan Pandey, Saurabh Pant

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引用次数: 0

摘要

本文介绍了在光锥规中制定的规理论和引力中与软玻色子发射相关的通用因子。回顾了利用这些因子从低点振幅构造高点振幅的反软方法。然后在（光锥）超空间中检验了这些思想，并将其应用于 N=4$\mathcal {N}=4$ 超级杨-米尔斯和 N=8$\mathcal {N}=8$ 超级引力理论。其中一个亮点是 N=8$\mathcal {N}=8$ 超引力中四元相互作用顶点的紧凑结果，这是有限性分析的一个关键要素。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Soft Factors and Interaction Vertices from Light-Cone Actions

Universal factors associated with the emission of a soft boson in gauge theories and gravity, formulated in the light-cone gauge, are presented. The inverse-soft method, for constructing higher-point amplitudes from lower-point ones, using these factors is reviewed. These ideas are then examined in (light-cone) superspace and applied to both the $N = 4$ super Yang–Mills and $N = 8$ supergravity theories. One highlight is a compact result for the quartic interaction vertex in $N = 8$ supergravity, a crucial ingredient for finiteness analyses.

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来源期刊

Fortschritte Der Physik-Progress of Physics 物理-物理：综合

CiteScore

6.70

自引率

7.70%

发文量

审稿时长

6-12 weeks

期刊介绍： The journal Fortschritte der Physik - Progress of Physics is a pure online Journal (since 2013). Fortschritte der Physik - Progress of Physics is devoted to the theoretical and experimental studies of fundamental constituents of matter and their interactions e. g. elementary particle physics, classical and quantum field theory, the theory of gravitation and cosmology, quantum information, thermodynamics and statistics, laser physics and nonlinear dynamics, including chaos and quantum chaos. Generally the papers are review articles with a detailed survey on relevant publications, but original papers of general interest are also published.