[2311.08261]

Translation of Gulmanelli's seminar notes "On a theory of isotopic spin" (1954)


An integral translation of Paolo Gulmanelli's seminar notes "Su una teoria dello spin isotopico" (Casa Editrice, Milano, 1957) is presented. This is the only exposition that contains all elements of Pauli's attempt at a non-Abelian Kaluza-Klein theory in 1953.