Properties Of Susy Particles - Proceedings Of The 23rd Workshop Of The Infn Eloisatron Project

In this workshop, the super high energy and luminosity frontiers of subnuclear physics were actively investigated. A conceptual design of the highest energy (100+100 TeV) proton-proton collider -- the Eloisatron -- already exists. There are many reasons to believe that supersymmetry and its local version, supergravity, could be relevant in a fundamental theory of particle reactions. The minimal supersymmetric extension of the standard model (MSSM) is today phenomenologically acceptable, theoretically motivated and calculable. The present and future colliders can play a crucial role in testing supersymmetry experimentally. The purpose of the workshop was therefore to review the main features of the MSSM as well as the possible non-minimal models and the issue of gauge coupling unification. Emphasis was given to theoretical and experimental results relevant to supersymmetric particle searches at present and future colliders.