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PARTIAL WAVE ANALYSIS OF πN SCATTERING WITH FIXED-t CONSTRAINTS

We have finished the forward analysis of πN scattering and are proceeding with non-zero angles to achieve a full fixed-t constrained partial wave analysis. The outcome of the forward analysis is a set of coefficients of Pietarinen’s expansion together with a full covariance matrix, which can be used for calculating some forward observables with proper error bars. As an illustration, we calculated some of the subthreshold expansion coefficients cn0 and their errors.