PA-PRO-2016-003

Hyperon production and the study of their properties is an important part of the physics programme of the future PANDA experiment at FAIR. Antihyperon-hyperon pairs will be produced in antiproton-proton collisions through the annihilation of at least one light antiquark-quark (u,d) pair and the creation of a corresponding number of antiquark-quark ss pairs. By measuring the decay products of the hyperons, spin observables such as the polarisation can be measured.
Many hyperons have a long life-time which give rise to final state particles originating from displaced vertices. A pattern recognition algorithm using information from the PANDA Straw Tube Tracker is extended to reconstruct not only the transversal, but also the longitudinal components of charged tracks. A Hough transform and a path finding method as tools to extract the longitudinal components is being developed.