Physics at a gamma gamma, e gamma and e-e- Option for a Linear Collider

TL;DR

This paper reviews physics studies at a linear collider involving gamma gamma, e gamma, and e-e- collisions, highlighting new physics prospects like s-channel Higgs production and summarizing R&D efforts.

Contribution

It provides a comprehensive review of potential physics outcomes and technical developments for gamma gamma, e gamma, and e-e- collision modes at a linear collider.

Findings

New physics studies including s-channel Higgs production

Summary of R&D activities for interaction region

Assessment of e-e- collision merits

Abstract

This report presents a review of the studies made in the working group on gamma gamma and e gamma physics" of the ECFA/DESY workshop on linear collider physics. It reports on several new physics studies, in particular s-channel Higgs production. A summary of R&D activities for the interaction region is presented. The merits of e-e- collisions are briefly recalled.