Simple Analysis of IR Singularities at One Loop

2010/08/25 by Ambresh Shivaji, Shivaji, Ambresh · 1 citation
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Noncommutative and Quantum Gravity Theories #Quantum Mechanics and Applications #Quantum and Classical Electrodynamics #hep-ph

paper · pdf · doi:10.48550/arxiv.1008.4375

8 pages, 3 figures

arxiv created 2010/08/25 · openalex publication_date 2010/08/25 · arxiv updated 2010/08/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

In this article, we explore the structure of IR singularity of Feynman diagrams at one loop via power counting in loop momentum. The emphasis is on many known results which follow from this simple analysis.

Cited by

• A Note on the IR Finiteness of Fermion Loop Diagrams

Related

• A Note on the IR Finiteness of Fermion Loop Diagrams
• Feynman amplitudes and Landau singularities for 1-loop graphs
• Spherical Contours, IR Divergences and the geometry of Feynman parameter integrands at one loop
• Theoretical predictions to differential cross sections and decay rates from the loop-tree duality
• Landau and leading singularities in arbitrary space-time dimensions