Completing the Sagrada Família of Particle Physics with the help of leptons

by Tamara Vázquez Schroeder ( CERN)

IFAE Seminar Room + Zoom (Hybrid Seminar)

IFAE Seminar Room + Zoom

Hybrid Seminar

The primary goal of the Large Hadron Collider (LHC) has been to discover the mechanism of electroweak symmetry breaking (EWSB). The discovery of the Standard Model (SM)-like Higgs boson in 2012 was the first step to achieve this. However, the underlying nature of EWSB remains unknown. Additionally, the SM cannot explain the origin of neutrino masses, the asymmetry between matter and antimatter in our universe, or the nature of dark matter and dark energy. It also cannot address important conceptual questions, such as why is the Higgs boson so light compared to the Planck scale, or what are the underlying dynamics through which the Higgs field provides masses to the fundamental particles. Even though the LHC has not discovered any Beyond the Standard Model physics, there are multiple hints in various areas of particle physics which could revolutionise our understanding of the elementary particles and the forces between them, leading to the start of a new Higgs and Flavour Era. In this talk I will dive into promising new physics models that could address some of the shortcomings of the SM and could potentially explain some of the observed tensions in the particle physics landscape. Being potentially at the reach of the LHC collision energy, the search for these new physics signals in the multilepton final state could be the key to access a new phase in particle physics exploration.

Organized by

Oscar Blanch, Andreu Font Ribera, Lluisa-Maria Mir, Rafel Escribano

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