A Note on the IR Finiteness of Fermion Loop Diagrams

2010/08/27 by Ambresh Shivaji, Shivaji, Ambresh · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High Energy Physics - Theory (hep-th) #Particle physics theoretical and experimental studies #Quantum and Classical Electrodynamics #hep-ph #hep-th

paper · pdf · doi:10.48550/arxiv.1008.4792

7 pages, 3 figures and 1 table. An application to the main result is included

openalex publication_date 2010/08/27 · arxiv created 2013/06/20 · arxiv updated 2013/06/21 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We show that the most general fermion loop diagram is finite in both soft and collinear regions and therefore, it's IR finite. We use this result to express the IR singular structure of a box scalar integral in terms of the IR singular structure of reduced triangle scalar integrals.

Citations

• Simple Analysis of IR Singularities at One Loop

Cited by

• Gluon fusion contribution to VHj production at hadron colliders

Related

• Simple Analysis of IR Singularities at One Loop
• Reduction of one-massless-loop with scalar boxes in n+2 dimensions
• Finite Feynman Integrals
• The integrand form of infrared singularities of two-loop QCD scattering amplitudes
• The integrand form of infrared singularities of two-loop QCD scattering amplitudes