Photon collider at TESLA: parameters and interaction region issues

TL;DR

This paper discusses the parameters and technical issues of implementing a photon collider at TESLA, highlighting its potential for higher event rates in gamma-gamma collisions compared to e+e- collisions.

Contribution

It presents a detailed analysis of the parameters and laser schemes for a TESLA photon collider, addressing interaction region challenges.

Findings

Gamma-gamma luminosity can reach 0.3--0.5 times e+e- luminosity.

Gamma-gamma collision cross sections are about ten times higher than e+e-.

Potential for increased event rates in gamma-gamma collisions.

Abstract

Photon colliders (gamma-gamma, gamma-e) are based on backward Compton scattering of laser light off the high energy electrons of linear colliders. Recent study has shown that the gamma-gamma luminosity in the high energy peak can reach 0.3--0.5 L (e+e-). Typical cross sections of interesting processes in gamma-gamma collisions are higher than those in e+e- collisions by about one order of magnitude, so the number of events in gamma-gamma collisions will be more than that in e+e- collisions. In this paper possible parameters of a photon collider at TESLA and a laser scheme are briefly discussed.