Phenomenological analysis of experimental data for photoproduction $\eta$-mesons\\ on nucleons

The first of purported series of papers with systematic analysis of data for
photoproduction of eta-mesons on nucleons. The method of the analysis comprises
two stages: at first we consider describing of angular distributions (linear
regression) and then extract multipol amplitudes (nonlinear problem). It's shown
the data of different groups about relative role of multipol amplitudes are

Document number: 2001-15/655

Authors: E.V.Balandina, E.M.Leikin, N.P.Yudin