Occhialini’s contribution to the discovery of the pion. An interview by L. Gariboldi

The paper “Processes Involving Charged Mesons” [1, 2] signed by Cesare Mansueto Giulio Lattes(1), Hugh Muirhead, Giuseppe Paolo Stanislao Occhialini, and Cecil Frank Powell(2) was published in the May 24th, 1947 issue of Nature. In the introduction to this paper we can read the following announcement: