Comparison of photon colliders based on e-e- and e+e- beams
Abstract
At photon colliders gamma-gamma, gamma-electron high energy photons are produced by Compton scattering of laser light off the high energy electrons (or positrons) at a linear collider. At first sight, photon colliders based on e-e- or e+e- primary beams have similar properties and therefore for convenience one can use e+e- beams both for e+e- and gamma-gamma modes of operation. Below we compare these options and show that e-e- beams are much better (mandatory) because in the e+e- case low energy background gamma-gamma to hadrons is much higher and e+e- annihilation reactions present a very serious background for gamma-gamma processes.
Keywords
Cite
@article{arxiv.hep-ex/0507070,
title = {Comparison of photon colliders based on e-e- and e+e- beams},
author = {V. I. Telnov},
journal= {arXiv preprint arXiv:hep-ex/0507070},
year = {2011}
}
Comments
Talk at 2005 International Linear Collider Workshop, Stanford Ca (LCWS05) 4 pages, LaTeX, 1 eps figures, PSN code 0506