Final States in Photon-Photon and Photon-Proton Interactions
Stefan Soldner-Rembold
TL;DR
This paper discusses measurements of photon-photon and photon-proton interactions, highlighting discrepancies, new results on particle production, and the first study of baryon number transfer at HERA.
Contribution
It presents new experimental results on hadronic cross-sections, particle production, and baryon transfer mechanisms in photon-induced interactions, with comparisons between different experiments.
Findings
Discrepancies between L3 and OPAL cross-section measurements
First observation of baryon number transfer in photon-proton interactions at HERA
Preliminary results on neutral pion production in photon-proton scattering
Abstract
The total hadronic photon-photon cross-section measured by L3 and OPAL and the apparent discrepancy between the results are discussed. OPAL measurements of jet and charged hadron production in photon-photon scattering and preliminary H1 results on neutral pion production in photon-proton scattering are also presented. The mechanism of baryon number transfer in photon-proton interactions at HERA has been studied for the first time by H1.
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Taxonomy
TopicsHigh-Energy Particle Collisions Research · Particle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions