Off-shell description of two-particle interactions by the boundary condition method

N. M. Petrov


Abstract: The boundary condition method is used to formulate an approach that makes it possible to describe the interaction of two particles off the energy shell. The off-shell wave function is expressed explicitly in terms of the half-on-shell amplitude scattering function, for which a linear differential first-order equation is obtained. The Noyes–Kowalski representation for the off-shell scattering amplitude is obtained in terms of half-on-shell quantities.

Received: 01.09.1986

 English version: Theoretical and Mathematical Physics, 1988, 75:1, 365–370

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