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Beschreibung:
It is shown that most of the available data on the pp-->pp eta reaction, including the invariant mass distributions in the pp-->pp eta reaction recently measured at COSY, can be understood in terms of the partial-wave amplitudes involving final pp S and P states and the eta meson s wave. This finding, together with the fact that results within a meson-exchange model are especially sensitive to the details of the excitation mechanism of the S-11(1535) resonance, demonstrates the possibility of investigating the properties of this resonance in NN collisions. The spin correlation function C-xx is shown to disentangle the S- and P-wave contributions. It is also argued that spin correlations may be used to help constrain the contributions of the amplitudes corresponding to the final pp P-3(0) and P-3(2) states.