1998/03/07 by Q. Zhao, Qiang Zhao, Zhenping Li +4
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #Nuclear Theory (nucl-th) #Quantum Chromodynamics and Particle Interactions #Theoretical and Computational Physics #nucl-th
paper · pdf · doi:10.48550/arxiv.nucl-th/9803021
11 pages, 3 PS figures, submitted to PRC
arxiv created 1998/03/07 · openalex publication_date 1998/03/07 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
An investigation of γp→ ωp is presented in a constituent quark model approach. The sparse data in the large t region where the resonances dominate is well described within the model, while the diffractive behavior in the small t region requires an additional t-channel exchange. Taking into account the t-channel π0 exchange, we find a good overall agreement with the available data with only 3 free parameters. Our study shows that the differential cross section is not sensitive to s-channel resonances, however, the polarization observables are demonstrated to be very sensitive. Thus, measuring polarization observables is the crucial part of the vector meson photoproduction program in the search for "missing" resonances.