Sensitivity of exclusive proton knockout spin observables to different Lorentz invariantrepresentations of the NN interaction

Within the framework of the relativistic plane wave impulse approximation, we study the observable consequences of employing a complete Lorentz invariant representation of the nucleon-nucleon (NN) scattering matrix in terms of 44 independent amplitudes, as opposed to the previously employed, but ambiguous, five-term Lorentz invariant parametrization of the NN scattering matrix, for the prediction of complete sets of exclusive [Formula Presented] polarization transfer observables. Two kinematic conditions are considered, namely, proton knockout from the [Formula Presented] state of [Formula Presented] at an incident energy of [Formula Presented] for coplanar scattering angles [Formula Presented], as well as an incident energy of [Formula Presented] for the angle pair [Formula Presented]. The results indicate that certain spin observables are ideal for discriminating between the two representations.