1995/05/25 by Michael Krämer, Krämer, Michael
Physics and Astronomy · Social Sciences · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #International Science and Diplomacy #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9505380
7 pages, latex, 2 figures appended as uuencoded file (hardcopy can be obtained upon request from [email protected]). Talk presented at the Conference "Photon '95", Sheffield, UK, April 8-13, 1995; to appear in the proceedings
arxiv created 1995/05/25 · openalex publication_date 1995/05/25 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Heavy quarks are copiously produced in two-photon collisions at e+e- colliders. The theoretical predictions including QCD radiative corrections are compared to recent experimental data on γγ production of charm quarks at PETRA, PEP, TRISTAN and LEP. Photoproduction of heavy quarks at HERA is an important tool to measure the gluon distribution in the proton. New theoretical results on heavy quark photoproduction at large transverse momenta are discussed and NLO predictions for inelastic J/ψ photoproduction in the HERA energy range are given. The sensitivity of the results to the parametrization of the gluon distribution in the small-x region is demonstrated.