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Nicola Cabibbo
Is fuI/ Professor of Elementary Parlicle Physics at the Roma University "La
Sapienza". He is President of the Pontificia Accademia del/e Scienze. Has
been President of the Istituto Nazionale di Fisica Nucleare (INFN) and of the
Ente per le Nuove Tecnologie, l'Energia e l'Ambiente (ENEA). He discovered
the phenomenon of "quark mixing" in which a new fundamental constant
appears: the "Cabibbo angle". Besides the field of the elementary parlic/es he
has got imporlant resu/ts on the interaction of high energy e/ectromagnetic
radiation with crystals and on the trapping of magnetic flux quanta in
superconductors. He has given imporlant contributions. in the realization of
paral/el supercomputers now cal/ed APE. He is member of many academies
in Ita/y and abroad.

Abstract: Weak Interactions Physics
I will discuss Fermi's beta-decay paper, and some of the further work by
Fermi's close collaborators, Majorana, Wick, Pontecorvo. I will discuss recent
advances in the understanding of weak interactions, in particular quark mixing
and neutrino oscillations.