Phase-function method for velocity-dependent potentials
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We have adapted the phase-function method for studying on- and off-shell properties of velocity-dependent potentials. The main result presented in this paper is an ansatz for the interpolatingT-matrix function (on- or off- the energy-shell as the case may). Based on this ansatz we have presented an efficient method for computing the off-shell extension function which plays a role in the theories of three particle system. We have demonstrated this by means of a model calculation.
KeywordsNuclear reactions scattering theory phase function method velocity dependent potential off-shell amplitudes
PACS Nos.25.10 25.60 25.70
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