Joany Andreina MANJARRÉS RAMOS (L2IT) – soutenance HdR
Over the past decade, the Large Hadron Collider (LHC) has collected an unprecedented volume of data, producing vast numbers of Higgs, W, and Z bosons. While no direct signs of new physics have yet emerged, this wealth of data offers powerful opportunities to probe the Standard Model (SM) with high precision — and to search for subtle deviations that may point toward physics beyond it.
In this talk, I will present how the production of boson pairs offers a unique window into the electroweak sector. In the SM, the masses and longitudinal polarizations of the W and Z bosons arise from the Higgs mechanism, giving rise to delicate interference patterns and gauge cancellations that are essential for maintaining unitarity at high energies. These features result in precise predictions, which can now be tested experimentally and provide insights into the underlying dynamics of electroweak symmetry breaking.
In this HDR defense, I will present a summary of my contributions to this field, including studies of vector boson scattering, diboson polarization, and the use of Effective Field Theory to probe potential new interactions.
By confronting the Standard Model’s most elegant predictions with LHC data, these studies seek to answer a fundamental question: does the electroweak sector behave exactly as expected — or is there something more hidden beneath?
Contact : P. Pujol
