Particle Physics and Gravity

Our Department is a recognized center of excellence in the study of the fundamental interactions. On the microscopic side, our researchers are actively studying the nature of the subnuclear interactions, both theoretically and experimentally, maintaining a century-old tradition that started with Fermi, and continued with Amaldi, Conversi, Cabibbo, to name a few. On the other side, there is an intense activity aiming at understanding the large-scale structure of the Universe. Theorists get together with experimentalists actively partecipating in the international collaborations working on the direct detection of gravitational waves.

  • Particle physics and Fundamental Interactions

Understanding the fundamental nature of matter and interactions is the ultimate aim of the Particle Physics investigations requiring an approach with multiple tools: high energy colliders, neutrino experiments, neutrino-less double beta decay, dark matter direct and indirect searches, research and studies of rare or ultra-rare decays. Activities in this field are conducted in close collaboration with the most prestigious laboratories in the world (CERN, PSI, LNF, LNGS, JLAB, etc.). Together with the running experiments, the group members are actively involved in the development of cutting edge technologies for the preparation of future experiments.
Members: Barone, Bagnaia, Bellini, Bini, Cavoto, Cosmelli, D'Agostini, De Cecco, D. Del Re, Di Domenico, Ferroni, Gauzzi, Gentile, Giagu, Lacava, Longo, Luci, Masi, Martinez Perez, Messina, Organtini, Paramatti, Rahatlou, Raggi, Santanastasio

  • Particle Physics Theory

The research lines pursued by the Particle Theory Group are in the fields of Lattice Gauge Theory, with particular attention to Flavor Physics, higher order corrections to elementary processes of relevance to hadron collider physics, theory and phenomenology of exotic hadronic resonances and methods for light dark matter searches.
Members:  Aglietti, Bonciani, Martinelli, Papinutto, Pelissetto, Petrarca, Polosa

  • Astroparticles

During year 2013 a diffuse flux of cosmic neutrinos, exceeding the atmospheric component, has been reported by the IceCube experiment starting the "Neutrino Astronomy era". The search for point-like sources of neutrinos, needs a huge "Neutrino Telescope" with very good angular resolution in order to provide the necessary signal-background distinction. A group of this Department has been promoting, in the last two decades, the construction of “chilometer-cube" scale deep-sea neutrino Cherenkov detector, with the NEMO R&D program and with the ANTARES experiment. At present, while the analysis of ANTARES data goes on, the group is actively participating to the construction of KM3NeT, the "multi-chilometer-cube" scale Cherenkov Neutrino Telescope in the Mediterranean Sea.
Members:  Capone

  • Gravitational Wave Detectors

The Gravitational-Wave (GW) group of Rome Sapienza University is actively part of the worldwide LIGO-Virgo scientific collaboration, which is focused on the direct detection of all types of GW signals by using kilometer-scale laser interferometers. The Rome group is involved both in the analysis of the data collected by the LIGO-Virgo detectors, with particular interest and expertise in the search for continuous GW signals, as well as in the construction of the payloads, one of the fundamental components of a GW detector, and in the development of the third-generation detectors (such as Einstein Telescope).
Members:  Frasca, Leaci, Rapagnani, Ricci

  • Gravity Theory

Gravitational-wave (GW) phenomenology with current and future detectors: GW modelling, physics of black holes and neutron stars, tests of gravity and of the nature of compact objects, synergies between fundamental physics and GW astronomy.
Members:  Ferrari, Gualtieri, Pani