Heritage projects, preservation, and re-usability concerns

Abstract

The FCC is a long-term project, novel in many respects, and new calculations, including simu- lation programs, will be appearing in the forthcoming years. However, many of the approaches developed for previous experiments, in particular LEP, will be useful, either directly as a tools or as a means to prepare substantial benchmarks. In addition, programs that will be prepared for Belle II, especially in the domain of τ, B, and D resonance physics, will continue to be valuable tools. Such programs and projects will undoubtedly evolve in the meantime, but one can expect that ready-to-use versions will be available when the need arises. Then only inter- faces will need to be archived solely for the FCC. In some cases, the whole projects will require long-term preservation. Before we will explain some attempts on preservation of some example projects, such as τ decays, radiative corrections in decays, or electroweak corrections, let us mention possible general approaches.