i) Model Building and Phenomenology of Particle Physics (R. Barbieri, R. Contino, E. Trincherini)
The Standard Model (SM) of particle physics gives a successful description of high-energy processes but leaves many questions unanswered, like the origin of the electroweak symmetry breaking or the nature of the Dark Matter in the Universe. Finding an extension of the SM and a solution to these puzzles is the ultimate goal guiding our work. We are interested both in the construction of new models and in the investigation of their phenomenological consequences. An important role in this sense is played by physics at current and future colliders. Searches for new particles and a precise determination of the properties of the Higgs boson give powerful probes of new physics and are among the topics studied by our group.
ii) Cosmology and Astroparticle Physics (R. Barbieri, E. Trincherini, A. Sagnotti)
The study of the connection between various extensions of the Standard Model of particle interactions and the current cosmological model.
iii) Supergravity, String Theory, Field theory (D. Francia, A. Sagnotti)
The study of perturbative string theory, with special attention to orientifold vacua, including string mechanisms of supersymmetry breaking. Other aspects of quantum gravity, selected non-perturbative aspects of field theory and Higher-spin Gauge Theory, with special attention to the flat limit.