Workshop for young scientists with research interests focused on physics at FAIR

The study of event‐by‐event fluctuations of chemical (particle type) composition in high‐energy nucleus-nucleus collisions is a helpful tool to pin-down the properties of strongly interacting matter. Indeed, according to theoretical calculations, the QCD critical point may be signalled by a characteristic pattern in the measured fluctuations. In this contribution a new method for event-by-event fluctuations of identified particles will be introduced. In particular, using this method, the energy dependence of multiplicity fluctuations in central Pb+Pb and proton-proton collisions, measured by NA49 and its successor NA61/SHINE, will be presented. Furthermore an outlook on the NA61/SHINE program will be given.