Resolved photon processes

Abstract

After giving a very brief introduction to the resolved photon processes, I will summarize the latest experimental information from HERA, on resolved photon contribution to large p_T jet production as well as to direct photon production. I will point out the interesting role that resolved photon processes can play in increasing our understanding of the dynamics of the quarkonium production. I will then discuss the newer information on the parton content of virtual photons as well as the k_T distribution of the partons in the photon. I will end by giving predictions of an eikonalized minijet model for σ _γγ ^inel which crucially uses the experimental measurement of the above mentioned k_T distribution and comparing them with data.