This article is cited in 2 papers

On retardation effect in the formfactor of two-particle bound state

T. I. Kopaleishvili^a, E. Z. Lipartia^a, A. G. Rusetsky<sup>b

a</sup> Tbilisi Ivane Javakhishvili State University, High Energy Physics Institude
^b Joint Institute for Nuclear Research, Bogoliubov Laboratory of Theoretical Physics

Abstract: In the Logunov–Tavkhelidze quasipotential approach the convergence of the iteration procedure corresponding to the account of the dynamical retardation effect in the electromagnetic formfactor of the two scalar particle bound state with the separable Bethe–Salpeter kernel is investigated. The status of the relativistic momentum approximation within the framework of this approach is discussed. In the static approximation the electromagnetic vertex operator obeying the current conservation and normalization conditions is constructed with regard to the interaction current. The comparative analysis of the formfactor in the different approximations is done.

Received: 06.05.1996

DOI: 10.4213/tmf967

 English version: Theoretical and Mathematical Physics, 1997, 110:2, 214–228

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