omega-meson photoproduction on nucleons in the near-threshold region

Date

2002-03-01

Author

Babacan, H
Babacan, T
Gokalp, A
Yılmaz, Osman

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The omega-meson photoproduction, gamma + p --> p + omega, is studied in the framework of a model, containing pi-meson exchange in t-channel and nucleon-exchange in s- and u-channels. Considering both omegaNN, coupling constants in the region of time-like meson four-momenta as the free parameters, we find different sets of solutions for these constants from the existing data on the l-dependence of the differential cross-sections, dsigma(gamma + p --> p + omega)/dl, in the near-threshold region Egamma less than or equal to 2 GeV. These sets of,earn coupling constants, corresponding to destructive and constructive pi X N-interference contributions to dsigma/dt can be well distinguished by measurements of beam asymmetry, induced by linear photon polarization.

Subject Keywords

Nuclear and High Energy Physics

URI

https://hdl.handle.net/11511/62916

Journal

EUROPEAN PHYSICAL JOURNAL A

DOI

https://doi.org/10.1007/s10050-002-8764-7

Collections

Department of Physics, Article

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Citation Formats

H. Babacan, T. Babacan, A. Gokalp, and O. Yılmaz, “omega-meson photoproduction on nucleons in the near-threshold region,” EUROPEAN PHYSICAL JOURNAL A, pp. 355–362, 2002, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/62916.