QCD saturation and $\gamma^{*}$ - $\gamma^{*}$ scattering

QCD Saturation and γ∗-γ∗ Scattering

Two photon collisions at high energy have an important theoretical advantage: the simplicity of the initial state, which gives us a unique opportunity to calculate these processes for large virtualities of both photons in perturbative QCD approach. In this paper we study QCD saturation in two photon collisions in the framework of the Glauber-Mueller approach. The Glauber-Mueller formula is deri...

A note on low scale unification and gamma-gamma scattering

In this note we study an interesting effect of low energy gravity on photon-photon scattering at high energies. In a recent paper Gounaris, Porfyriadis and Renard [1] have highlighted the possibility of exploring new physics through the scattering process γγ → γγ at c.m. energies in the TeV range. The γγ mode is a possible mode of operation in a ee linear collider and this makes the study of th...

Elastic scattering of 88.03-keV gamma rays.

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...

20 00 A note on low scale unification and gamma - gamma scattering

In this note we study an interesting effect of low energy gravity on photon-photon scattering at high energies. In a recent paper Gounaris, Profyriadis and Renard [1] have highlighted the possibility of exploring new physics through the scattering process γγ → γγ at c.m.. energies in the TeV range. The γγ mode is a possible mode of operation in a e + e − linear collider and this makes the study...