Speaker
Luís Miguel Marques Lourenço
Description
The Higgs particle was predicted in 1964 and discovered at CERN on July 2012, earning Higgs and Englert the 2013 Physics Nobel Prize. This is a spin-zero particle (scalar), necessary to give masses to all the other massive particles in the Standard Model of Electroweak interactions. But, there is no fundamental reason why there should be only one such scalar. In this project, we consider extensions to the SM with three Higgs doublets. We study the necessary and sufficient conditions for boundedness from below in the general 3HDM potential, and confront implementations of the model with different symmetries, with current experimental data.