  The production of p K+ {\Lambda} in elementary p + p collision was
investigated using the Bonn Gatchina Partial Wave Analysis framework. This
approach allows the determination of possible participating production wave
depending on the quantum numbers of the system. For the analysis seven data
samples, measured at different detectors and beam energies, were used.For the
extraction of the p{\Lambda} scattering length a cross check with established
methods is required. Furthermore the total cross section of the production
process is needed to be determined to extra cross section for the separate
waves. Both methods are described in this work.
