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For the nucleon·nucleon scattering amplitudes a~ low energies; we study Regge·like behaviour using the K-matrix unit;arization method. Here the Regge-like behaviour is pheno· menologically represented by the energy dependence of the coupling constant and mass of the exchanged boson in the one-boson-exchange (OBE) amplitudes. This behaviour is shown to be likely for the vector·meson·exchange part. It is consistent with the results of an earlier analysis in terms of the partial wave dispersion relation. For the scalar meson, however, no strong evidence is found for such a behaviour and its behaviour is not incon· sistent with cut or fixed pole.

Remarks on the Regge-Like Behaviour of the One-Boson-Exchange Amplitude in Low-Energy Nucleon-Nucleon Scattering