Gamma - Gamma , Gamma - Electron Colliders ∗

ar X iv : h ep - e x / 98 10 01 9 v 3 2 2 O ct 1 99 8 KEK - Preprint 98 - 163 October 1998 GAMMA - GAMMA , GAMMA - ELECTRON COLLIDERS ∗

It is very likely that in 3-4 years the construction of one or two linear colliders with c.m.s energy up to 0.5–1.5 TeV will be started. Besides eecollisions, linear colliders give a unique possibility to study γγ and γe interactions at energies and luminosities comparable to those in ee collisions. High energy photons for γγ and γe collisions can be obtained using laser backscattering. These t...

An Interaction Region for Gamma-Gamma and Gamma-Electron Collisions at TESLA/SBLC

Linear colliders offer an unique opportunities to study γγ and γe interactions. Using the laser backscattering method one can obtain γγ, γe colliding beams with an energy and luminosity comparable to that in e+e− collisions. This work is part of the Conceptual Design of TESLA/SBLC linear colliders describing a second interaction region for γγ and γe collisions. We consider here possible physics...

Laser cooling of electron beams at linear colliders . ∗

A method of electron beam cooling is considered which can be used for linear colliders. The electron beam is cooled during collision with focused powerful laser pulse. The ultimate transverse emittances are much below those achievable by other methods. This method is especially useful for high energy gamma-gamma colliders. In this paper we review and analyse limitations in this method, also dis...

Improving the Nutritional Value of Sunflower Meal by Electron Beam and Gamma Ray Irradiations

This research was performed to compare electron beam (EB) and gamma ray (GR) treatments at doses of 25, 50 and 75 kilo Gray (kGy) on ruminal degradation kinetics and in vitro digestibility of sunflower meal (SFM). Ionizing radiations of EB and GR had significant effects )P

Gamma - Gamma Colliders