LHCb is a CERN experiment that has been conceived to discover what allowed, after the Big Bang, matter to survive and create the Universe we live today. The Milano group is involved in the data analysis and, in particular, in the study of the CP symmetry violation in the decay of particles with heavy quarks. The quest for new physics in this sector is complementary to the direct search of new particles and can explore, in principle, mass scales of 10 TeV or more. The group is also involved in the upgrade of the Upstream Tracker silicon strip detector and in the R&D for an innovative trigger for the fast reconstruction of charged particle tracks.