References
R. H. Dalitz andG. Rajasekaran:Resonance poles and mass differences within unitary multiplets, to be published inPhys. Lett. Here, the relation (15b) is derived using the reducedK-matrix formalism.
R. J. Eden andJ. R. Taylor:Poles and shadow poles in the many channel S-matrix (Cambridge preprint, November, 1963);R. J. Eden andJ. R. Taylor:Phys. Rev. Lett.,11, 516 (1963).
M. Ross:Phys. Rev. Lett.,11, 450 (1963).
R. Oehme:Zeits. f. Phys.,162, 426 (1961).
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Rajasekaran, G. Scattering amplitudes on unphysical sheets and resonance poles. Nuovo Cim 31, 697–700 (1964). https://doi.org/10.1007/BF02733771
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DOI: https://doi.org/10.1007/BF02733771