New Applications of PAX in Physics Analyses at Hadron Colliders

The PAX (Physics Analysis eXpert) toolkit assists physicists in the analysis and interpretation step of a particle physics research project. Its aim is to provide a new level of abstraction beyond detector reconstruction which facilitates code reuse and unification. PAX makes use of fourvector arithmetics and offers sophisticated relation management and memory management functionality. This paper gives an overview of the toolkit and reports about its application in the hadron collider experiments CDF and CMS.