Polarization degrees of freedom in near-threshold photoproduction of omega mesons in the pi^0 gamma decay channel
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We study polarization variables in the photoproduction of omega-mesons with subsequent omega to gamma pi^0 decay. Single and double polarization observables are calculated as a function of different final-state angles. Reaction models include pomeron (natural parity) and pi^0 (unnatural parity) exchange in the t-channel. In addition, the contribution of s-channel resonances is considered. The sensitivity of the polarization observables to the reaction dynamics is discussed.
10 pages, 10 figures, explicit reference to sign of decay asymmetry added
10 pages, 10 figures, explicit reference to sign of decay asymmetry added