Thesis

Higgs and Flavour Beyond the Standard Model

• Call:

  PT-CERN Call 2022/1

• Academic Year:

  2022

• Domain:

  Astroparticle Physics

• Supervisor:

  Gustavo Castelo Branco

• Co-Supervisor:

  Margarida Nesbitt Rebelo

• Institution:

  Instituto Superior Técnico (Universidade de Lisboa)

• Host Institution:

  CFTP - Centro de Física Teórica de Partículas

• Abstract:

  The proposed work plan aims at giving a contribution towards uncovering what is the Physics Beyond the Standard Model (BSM) in the Higgs and Flavour sector of Particle Physics. These two sectors are intimately related from the theoretical point of view. The connection is established directly at the Lagrangian level. In the state of the art it is explained why physics BSM is required. Symmetries increase predictability and will play a fundamental role in this work. Multi-Higgs models and models with an extended quark and leptonic sector will be considered. The work will focus on the origin of fermion masses and mixing, on analysing how to suppress dangerous flavour changing neutral currents and on the study of new sources of CP violation. In some extensions good dark matter candidates will arise. At all stages, the most recent experimental results will play a fundamental role in guiding the theoretical research.