Speaker
Description
Starting with the SPS and now RHIC and LHC, heavy-ion collisions (A-A) were used to study the quark-gluon plasma and its properties. Small colliding systems such as p-p and p-A were used as baseline to understand effects from vacuum QCD and cold nuclear effects respectively. Nevertheless since the discovery of quark-gluon plasma like signatures in small colliding systems (such as p-p, p-A, ...), a large amount of work was dedicated to understand their origin. Indeed, this new phenomena may imply that the current paradigms we have to describe A-A, p-A and p-p collisions need to be reconsidered. In this talk, an experimental overview of the current results and understanding will be given. A good control on our knowledge of the time-space evolution of high-energy hadronic collisions appears to be crucial. Along that line, some prospectives will be discussed.
