TL;DR
This paper reviews recent spectroscopy results from HERA, including searches for pentaquarks, cross section measurements of various mesons, and comparisons between experiments to advance understanding of hadronic states.
Contribution
It provides new experimental data on pentaquark searches and meson production at HERA, with cross section measurements enabling inter-experimental comparisons.
Findings
Upper limits set on unobserved pentaquark states
Measured cross sections for eta, rho^0, f_0(980), and f_2(1270)
Comparison of results across H1 and ZEUS collaborations
Abstract
Recent results on spectroscopy with special focus on searches for pentaquarks are presented from the H1 and ZEUS collaborations. Cross sections of observed states and upper limits on the production cross section of unobserved states are extracted in order to enable comparison between experiments. Measurements of the inclusive photoproduction of the neutral mesons eta, rho^0, f_0(980) and f_2(1270) in ep interactions at HERA at an average gamma-p collision energy of 210 GeV are also presented.
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Taxonomy
TopicsHigh-Energy Particle Collisions Research · Quantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies