Effective Lagrangian approach to the omega meson photoproduction near threshold

Details Effective Lagrangian approach to the omega meson photoproduction near threshold Effective Lagrangian approach to the omega meson photoproduction near threshold

2002-05-19

arxiv.org/abs/nucl-th/0205052v1

Phys.Rev. C66 (2002) 015204

Physics

Nuclear Physics

Nuclear Theory

25 pages, 10 figures

Scientific paper

10.1103/PhysRevC.66.015204

We apply the effective Lagrangian approach to investigate the role of the nucleon resonances in $\omega$ meson photoproduction at energies near the threshold. The resonant amplitudes are calculated from effective Lagrangians with the gamma NN* and omega NN* coupling constants fixed by the empirical helicity amplitudes and the vector meson dominance model. The contributions from the nucleon resonances are found to be significant in changing the differential cross sections in a wide interval of t and various spin observables.

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