Professor Gabriel González Sprinberg visits the Department of Theoretical Physics from From 09/07/2019 al 24/07/2019 . His office is the FF-4417A. Doctor González Sprinberg is professor at the Faculty of Sciences of the University of the Republic, Montevideo, Uruguay and is responsible of the group of Particle and High Energy Physics of the Physics Institute, director of the Medical Physics Unit and the Department of Theoretical Physics of the University of the Republic. His scientific research in the field of high energy physics is addressed to the study of the properties and phenomenology of the different fermion couplings to bosons in the standard model and its extensions.