Abstract
For nucleon-nucleon (NN) scattering it is shown in [1] that a soft-core one-boson-exchange (OBE) model can describe the wealthy and precise NN-data very well. Only 13 parameters were used. Most of these parameters are coupling constants, mixing angles or F/(F + D)-ratio’s. These physical parameters can be checked in principle with results found for other reactions. The model was partly based on regge-pole theory [2], therefore the proper theoretical framework for it is the analytic S- matrix theory. Recently [3] within this context the full details on the derivation of the Lippmann-Schwinger equation have been worked out for unequal mass scattering. This enables us to extend the model of [1] to baryon-baryon scattering.
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