Tsukuba – Tsukuba, Japan, is hosting an experiment that began on March 2, when for the first time in history, beams of electrons and positrons were injected and stably circulated in the SuperKEKB accelerator. The goal is to find signals of elusive yet to be discovered particles – not covered by the theory of the Standard Model. Once the preparatory phase is complete, the Belle-II experiment will take place at the KEK laboratory in Tsukuba, involving a team of researchers from the University of Pisa working in close collaboration with the National Institute of Nuclear Physics ( INFN). “The experiment will provide the most consistent sample of heavy flavor particles to be analyzed that has ever been produced. This sample will be used by the Pisa researchers, along with about 600 scientists from 23 different countries, to conduct precision measures which could open the way for the discovery of new particles,” explains on the website of the University of Pisa, Francesco Forti, INFN representative and chairman of the Belle-II executive committee. (9Colonne)