2004/10/31 by Indrajit Mitra, Raghunath Ratabole, H. S. Sharatchandra
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Combinatorics #Computer science #Conformal map #Infrared #Invariant (physics) #Logarithm #Massless particle #Mathematical analysis #Mathematical physics #Mathematics #Order (exchange) #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Space (punctuation) #Vertex (graph theory) #cond-mat.supr-con #hep-ph #hep-th
paper · pdf · doi:10.1016/j.physletb.2005.02.049
published as Phys.Lett. B611 (2005) 289-296 · 12 pages, uses axodraw.sty; added comments at the end, and one reference; to appear in Phys. Lett. B
openalex publication_date 2005/03/05 · arxiv created 2005/03/14 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We show that the logarithmic infrared divergences in electron self-energy and vertex function of massless QED in 2+1 dimensions can be removed at all orders of 1/N by an appropriate choice of a non-local gauge. Thus the infrared behaviour given by the leading order in 1/N is not modified by higher order corrections. Our analysis gives a computational scheme for the Amati-Testa model, resulting in a non-trivial conformal invariant field theory for all space-time dimensions 2 < d < 4.