ar X iv : h ep - p h / 03 11 13 8 v 1 1 1 N ov 2 00 3 Physics at a γγ , eγ and e − e − Option for a Linear Collider

ar X iv : h ep - e x / 98 11 02 3 v 1 1 1 N ov 1 99 8 The structure of the photon and its interactions ∗

The OPAL experiment at LEP has performed a variety of measurements of γγ and eγ scattering at the ee collider LEP to gain a deeper insight into the structure of the photon and its interactions. This review presents a summary of these results.

ar X iv : h ep - p h / 02 11 19 2 v 1 1 3 N ov 2 00 2 Why We Need Both the LHC and an e + e − Linear Collider ⋆

ar X iv : h ep - p h / 02 09 00 7 v 1 3 1 A ug 2 00 2 Measuring the initial electron beam polarization

The investigation of e γ → ν W process is crucial for a possible high energy eγ or γγ collider since it offers the possibility for both new physics discovery and precision measurements. The polarization of the initial beam is a limiting factor for the systematic errors in both cases. This note addresses the feasibility of making a measurement of the initial electron beam polarization with relat...

ar X iv : h ep - e x / 03 11 05 4 v 1 2 6 N ov 2 00 3 Recent Results from D 0

We discuss recent (B physics) results from D0. The results presented here correspond to an integrated luminosity of ≈ 115 pb−1 of data collected at the Tevatron, between April 2002 and June 2003, at a center of mass energy of (p p collisions) of 1.96 TeV.

ar X iv : h ep - e x / 03 11 05 6 v 1 2 7 N ov 2 00 3 TWO - PHOTON PHYSICS AT LEP ∗

A remarkable number of studies have been performed at LEP in the field of two-photon physics in the last four years. These results represent a very important contribution to the understanding of strong interactions at low energies. In particular, significant deviations from QCD predictions are found in the cross sections of inclusive single particle, jet and beauty production. A concise review ...