Polarization transfer observables for quasielastic proton-nucleus scattering in terms of a complete Lorentz invariant representation of the NN scattering matrix

摘要

For the calculation of polarization transfer observables for quasielasticscattering of protons on nuclei, a formalism in the context of the RelativisticPlane Wave Impulse Approximation is developed, in which the interaction matrixis expanded in terms of a complete set of 44 independent invariant amplitudes.A boson-exchange model is used to predict the 39 amplitudes which were omittedin the formerly used five-term parameterization(the SPVAT form) of thenucleon-nucleon scattering matrix. Use of the complete set of amplitudeseliminates the arbitrariness of the five-term representation.