On the ambiguity of determination of interfering resonances parameters
Abstract
The general form of solutions for parameters of interfering Breit-Wigner resonances is found. The number of solutions is determined by the properties of roots of corresponding characteristic equation and does not exceed 2N-1, where N is the number of resonances. For resonances of more complicated form, provided that their amplitudes satisfy certain conditions, for any N2 multiple solutions also exist.
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