Photon-photon scattering at high energy and fixed angle
Journal
Physical Review D
Journal Volume
26
Journal Issue
4
Pages
922-926
Date Issued
1982
Author(s)
Abstract
In this paper, we study the photon-photon elastic scattering amplitude in the limit of the incident energy with the scattering angle fixed. In the lowest (4th) order, this amplitude is a function of only. We calculate explicitly these scaling functions of and find that they are surprisingly simple. The higher-order photon-photon scattering amplitudes have lns factors. Thus scaling is violated. These lns factors come from self-energy diagrams and vertex diagrams only and can therefore be absorbed into the running coupling constant. The photon-photon scattering amplitude of the nth perturbative order is hence of the form of e4[e(t)]n-4 times a function of . © 1982 The American Physical Society.
SDGs
Type
journal article