Asymmetry in omega meson photoproduction and the phase of omega-pi-gamma coupling

Details Asymmetry in omega meson photoproduction and the phase of omega-pi-gamma coupling Asymmetry in omega meson photoproduction and the phase of omega-pi-gamma coupling

1997-12-22

arxiv.org/abs/nucl-th/9712070v1

Phys.Lett. B422 (1998) 33-38

Physics

Nuclear Physics

Nuclear Theory

9 pages, LaTeX with elsart.sty, uses epsfig.sty, amsbsy.sty and amssymb.sty, 3 figures (5 eps files)

Scientific paper

10.1016/S0370-2693(98)00049-5

We analyze the double polarization asymmetry of the omega-meson photoproduction in the vector-meson-dominance model of diffractive production and the one-pion exchange model. We find that the longitudinal beam-target asymmetry is very sensitive to the real part of the diffractive photoproduction amplitude and to the sign of the omega-pi-gamma coupling because of the different spin structures of the amplitudes associated with the different mechanisms.

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