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The complex relation between production and scattering amplitudes

Authors: E. van Beveren and G. Rupp

Ref.: Europhys.Lett. 81, 61002-p1-61002-p3 (2008)

Abstract: The unitarity relation, Im(A)=T* A, is derived for a three-body production amplitude, A, that consists of a complex linear combination of elements of the two-body scattering amplitude, T. We conclude that the unitarity relation does not impose a realness condition on the coefficients in the expansion of, A, in terms of, T.

DOI: 10.1209/0295-5075/81/61002

URL: arxiv.org