The $SU(2)_L\times U(1)_Y$ invariance of the Standard Model Effective Field Theory (SMEFT) predicts multiple restrictions in the space of Wilson coefficients of $U(1)_{em}$ invariant effective lagrangians such as the Low-energy Effective Field Theory (LEFT), used for low-energy flavor-physics observables, or the Higgs Effective Field Theory (HEFT) in unitary gauge, appropriate for...
Electroweak (EW) corrections, significantly influenced by Sudakov logarithms, become the predominant higher-order effect at the TeV scale and beyond. In this study, we compute EW corrections in the high-energy limit for selected dimension-six SMEFT operators. Our findings reveal that while four-fermion operators exhibit universally similar corrections as those seen in the Standard Model (SM),...
A first measurement is presented of the cross-section for the scattering of same-sign W boson pairs via the detection of a τ lepton. The data from proton-proton collisions at the center-of-mass energy of 13 TeV were collected by the CMS detector at the LHC, corresponding to an integrated luminosity of 138 fb−1. Events containing two jets with large pseudorapidity and large invariant mass, one...
Due to the lack of direct evidence in the search for new physics (NP), the Effective Field Theory (EFT) framework offers an indirect and model-independent approach to parameterize NP effects. In this talk, I will focus on the non-linear EFT framework, also known as Higgs Effective Field Theory (HEFT), and include next-to-leading order (NLO) bosonic operators to study Higgs-related processes at...
