$2\gamma$ and $3\gamma$ annihilation as calibration processes for high energy $e^+ e^-$ colliders
High Energy Physics - Phenomenology
2009-04-30 v1
Abstract
Born differential cross sections and the lowest-order radiative correction to them are obtained in the kinematics of large-angle final photons emission in high-energy electron-positron annihilation processes. Taking into account possible emission of real soft and hard photons in collinear kinematics we show the validity of the Drell-Yan form of differential cross section with the nonsinglet structure functions of initial leptons. The leading and next-to leading contribution to the cross sections is obtained. The relevant numerical estimations are presented.
Cite
@article{arxiv.0801.1592,
title = {$2\gamma$ and $3\gamma$ annihilation as calibration processes for high energy $e^+ e^-$ colliders},
author = {E. Bartos and S. Bakmaev and E. A. Kuraev and M. G. Shatnev and M. Secansky},
journal= {arXiv preprint arXiv:0801.1592},
year = {2009}
}
Comments
9 pages, 1 figure