DATA: 27-03-2019

SEZIONE DI FIRENZE
Abstract: Branching random walks (BRW) are mathematical processes that may model the dynamics of a variety of physical systems. In particular, they turn out to be relevant for the study of very high-energy scattering processes in particle physics, such as electron-nucleus scattering: The total cross section of such a process is indeed related to the statistics of the lead particles generated by a peculiar BRW, while some characteristic features of diffractive events can be deduced from to the properties of genealogical trees of a set of extremal particles. In this seminar, we will focus on a few universal results on BRW, which we shall explain with the help of a phenomenological picture that we have developed.(Stephane Munier)