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In two meson photoproduction off a nucleon, for the case in which two of thethree final state hadrons are products of the decay of an intermediateresonance, general expressions for its decay distribution and for polarizationobservables are derived in a model independent way. These are functions ofeither the spin density matrix elements (SDME's) or statistical tensors of theresonance, and the angles of its decay products. The expressions are generalenough that it also describes cases where more than one resonance of arbitraryquantum numbers contributes, including interference effects. They can thereforebe used to extract the SDME's or statistical tensors of the resonances thatcontribute to the reaction.

Angular Distributions, Polarization Observables, Spin Density Matrices  and Statistical Tensors in Photoproduction of Two Pseudoscalar Mesons off a  Nucleon