The National Institute of Nuclear Physics (INFN) brings together researchers who want to discover the mechanisms of the infinitely small as well as the infinitely large. To this end, they invent and develop innovative technologies with which to make the most accurate measurements that humanity can do. INFN is one of the most prestigious and important Italian research institutes, both theoretical and experimental, in the fields of subnuclear, nuclear and astroparticle physics, as well as in research and technological development relevant to activities in these sectors. INFN research activities are all carried out in an international competition environment and in close collaboration with the Italian university world, on the basis of consolidated and decades-long relationships. The Section was born in the early 1950s and has always played a leading role ever since: collider physics with superconductivity and new acceleration techniques, neutrino physics with ultrapure scintillators, nuclear physics, theoretical physics, as well as diagnostic and medical applications. active protagonists in numerous European and world research centers.