EvtGen — recent developments and prospects

Abstract

EvtGen is an event generator specialised for decays of heavy hadrons. Since its early development in the 90’s, the generator has been extensively used and has become an essential tool for heavy-flavour physics analyses. Throughout this time, its source code has remained mostly unchanged, except for additions of new decay models. In view of the upcoming boom of multi-threaded processing, we have launched a modernisation campaign with the chief goal of making EvtGen thread safe. We report on the challenges encountered in this endeavour and the milestones reached so far.