Imaginary part of the zero angle light-by-light scattering tensor
High Energy Physics - Phenomenology
2015-06-11 v3
Abstract
We calculate the bilinear combination of Dirac tensors describing the creation of a pair of charged particle (pi-meson or leptons) by virtual photons integrated on the final particle phase volume. It can be interpreted as an s channel discontinuity of the zero angle light-by-light scattering tensor with both photons off mass shell. The expression of light-by-light scattering tensor is represented in the form where the gauge invariance and the Bose symmetry are explicitly shown. Some applications and the checks are discussed.
Keywords
Cite
@article{arxiv.1209.5188,
title = {Imaginary part of the zero angle light-by-light scattering tensor},
author = {A. I. Ahmadov and S. Bakmaev and E. A. Kuraev},
journal= {arXiv preprint arXiv:1209.5188},
year = {2015}
}
Comments
7 pages