Construction of tensor exchange amplitudes in KN and anti KN CEX reactions

K+n charge exchange (CEX) polarization data obtained recently by the Saclay group at CERN are supplemented by differential cross-section data and by information on K-p CEX, and used to construct tensor exchange non-flip and flip components T0 and T1 of the s-channel helicity amplitudes directly from data at 6 GeV/c and for mod(t) < = 0.9. Vector exchange amplitudes are assumed to be known from πN scattering. The sensitivity of solutions to the uncertainties in the input data is examined in great detail. In general a unique solution for all t is found. New features are observed in the t-structure of non-flip and flip amplitudes. Re T0 and Re T1 have simple zeros at t approximately -0.45 and t approximately -0.65, respectively. Im T0 has a dip or a double zero at t approximately -0.16 and a double zero structure at t approximately -0.45. Im T1 has two simple zeros at t approximately -0.45 and t approximately -0.70. Violations of weak EXD in both amplitudes correspond to a lower A2 trajectory by approximately Δα approximately 0.1. If certain conditions are satisfied by the input data, a discrete ambiguity exists in the solutions for mod(t) >= 0.55 and this possibility is also carefully examined. (Auth.)