Professor of Nuclear and Subnuclear Physics at L'Aquila University. He was INFN researcher in Rome, professor in General Physics and INFN director in Lecce, director of the Physics
Department and coordinator of the Doctorate in Physics in L'Aquila. Up to 1985 his research interests were primarily addressed to Particle Physics at accelerators. He was involved in several experiments at Fermilab and CERN. These include the hybrid searches for charm in neutrino-production and beauty in hadro-production. Since 1985 his interests were addessed to Astroparticle Physics including studies of cosmic rays, searches for monopoles, atmospheric neutrino oscillations and neutrino bursts from stellar collapses. He has been involved in MACRO at Gran Sasso and now in the Pierre Auger Observatory in Argentina.